The sarcoplasmic reticulum calcium transport ATPase (SERCA) D351A mutant has the P domain Asp 351 residue replaced by alanine. How would this affect the Ca2 ATPase?

Answers

Answer 1

SERCA D351A cannot be phosphorylated by it.

What happens if you have low calcium levels?

Calcium deficiency can affect every part of the body, resulting in thin, brittle skin, sluggish hair growth, and brittle nails. Calcium has a critical role in both the neurotransmitter release and indeed the contraction of muscles. As a result, persons who are calcium deficient and otherwise healthy may experience seizures.

What happen if you consume too much calcium?

Too much blood calcium can harm your bones, develop kidney stones, and have an impact on how well your heart and brain work. Usually, parathyroid glands that are overactive lead to hypercalcemia. These four tiny glands are situated near the thyroid in the neck.

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Related Questions

classify the following as an electrolyte or non-electrolyte: calcium chloride solution (an ionic compound)

Answers

Calcium chloride solution is a electrolyte solution.

An electrolyte solution is a solution that generally contains ions, atoms or molecules that have been lost or gained electrons during the reaction, and is electrically conductive. Because of this they are often called ionic solutions, however there are some cases where the electrolytes are not ions.

A non-electrolyte is a solute that does not dissociate, or which does not furnishes ions during the dissolving process. Therefore, solutions that are generated through the solvation of non-electrolytes do not contain ions and, instead they are called as neutral molecules.

In case of calcium chloride it is a electrolyte solution because when it dissociates it generated Ca2+ and Cl- ions, which gives a ionic solution. Hence it is a electrolyte.

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A scuba diver's tank contains 1. 47 moles of o2 and 5. 53 moles of he at the end of a dive. If the pressure of the gas mixture is 12. 1 atm, what is the partial pressure of he in the tank?.

Answers

The partial pressure of helium, He in the tank, given that the tank contains 1.47 mole of O₂ and 5.53 moles of He, is 9.559 atm

How do I determine the partial pressure of He?

To calculate the partial pressure of He in the tank, we must first obtain the mole fraction of He. Details on how to obtain the mole fraction of He is shown below:

Mole of O₂ = 1.47 mole Mole of He = 5.53 moles Total mole = 1.47 + 5.53 = 7 molesMole fraction of He =?

Mole fraction of He = Mole of He / total mole

Mole fraction of He = 5.53 / 7

Mole fraction of He = 0.79

Now, we can obtain the partial pressure of He. This is illustrated below:

Mole fraction of He = 0.79Total pressure in tank = 12.1 atmPartial pressure of He in tank =?

Partial pressure = mole fraction × total pressure

Partial pressure of He = 0.79 × 12.1

Partial pressure of He = 9.559 atm

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If oxygen gas were collected over water at 22oC and the total pressure of the wet gas were 710 mm-Hg, what would be the partial pressure of the oxygen in mm-Hg? (Do not include the unit in the response)

Hint: Vapor Pressure of Water calculator Formula:
P = 10A-B/(C+T)
Where:
P: Vapor Pressure of Water in mm-Hg
T: Water Temperature, in Celsius
A,B,C: Antoine Constants for Water. When water temperature in the range of 1 - 100 Celsius A=8.07131, B=1730.63, C= 233.426

Answers

The partial pressure of the oxygen gas is obtained as 690.65 mmHg.

What is partial pressure?

The term partial pressure has to do with pressure of a gas that is part of a mixture of gases. We know that the total pressure of a mixture of gases is the sum of the partial pressures of all the gases that we have in the mixture.

We know that we can be able to apply the Dalton's law of partial pressures in this case. From the Dalton's law of partial pressure we have that;

PT = PA + PB + PC + ...... These are the individual pressures of the gases.

Now we know that saturated vapor pressure of water at the temperature of 22°C  is 19.35 mmHg.

We can  now be able to obtain the pressure of the gas from the values that we have and this is;  710 mm-Hg - 19.35 mmHg = 690.65 mmHg

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Please help me I dont understand this at all

The element camerium has two isotopes camerium-111 and camerium-113. calculate the percent of each isotope if the average isotopic mass is 112.67 amu. Heres what the table looks like

Answers

Considering the definition of isotopes and atomic mass of an element, the percent of each isotope is 16.5% abundant for Camerium-111 and 83.5% abundant for Camerium-113.

Definition of isotope

The same chemical element can be made up of different atoms, where their atomic numbers are the same, but the number of neutrons is different. Thus the isotopes of the element are formed.

Definition of atomic mass

The atomic mass of an element is the weighted average mass of its natural isotopes. This is, the atomic mass of a chemical element is usually calculated as the weighted average of the masses of the different isotopes of each element, considering the relative abundance of each of them.

Atomic mass of the element in this case

In this case, you know:

Camerium-111 is x% abundant (the atomic mass is 111).Camerium-113 is (100-x)% abundant (the atomic mass is 113).The average isotopic mass is 112.67 amu.

Then, the average mass can be expressed as:

111x + 113×(1-x)= 112.67

Solving:

111x + 113×1 -113x= 112.67

111x + 113 -113x= 112.67

111x -113x= 112.67 -113

(-2)x= (-0.33)

x= (-0.33)÷(-2)

x=0.165= 16.5%

Finally, the percent of each isotope is:

Camerium-111 is 16.5% abundant.Camerium-113 is 83.5% abundant.

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A boat that was sailing at 420 meters per minute passed near a humpback whale. The whale had taken 2.5 minutes to swim 230 meters south at a constant velocity. What was the whale's velocity?
PLSS help!!!

Answers

The velocity of the whale is equal to 1.53 m/s.

What is the velocity?

Velocity can be defined as a vector measurement of the direction and position of an object. The velocity can be defined as the rate of change in the position w.r.t. time.

Velocity is a vector parameter as it possesses both magnitude and direction. A mathematical formula to determine velocity:

v = d / t

Where v is the velocity, d is the distance, and t is the time of an object.

The S.I. unit for velocity is meters per second (m/s) and can also express in miles/hour (mph), and kilometers/hour (kph).

Given the distance swum by the whale, d= 230 m

The time is taken by the whale, t = 2.5 min = 150 sec

The velocity of the whale = d/t = 230/150 = 1.53 m/s

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How did Wegener use the shapes of the continents as evidence that the continents had moved?

Answers

Wegener use fossils evidence to the shapes of the continents as evidence that the continents had moved.

Chemical fossils are substances that may be discovered in rocks and serve as an organic record of prehistoric life. Chemical fossils can be divided into two categories: molecular fossils and isotope ratios. Molecular fossils are products of biological biosynthesis that are absorbed into sediments and subsequently into rock. They are also known as biomarkers or biosignatures.

Numerous of these molecules undergo well-known modifications and can remain stable for billions of years. Chemical fossils are found in fossil fuels such as petroleum (crude oil), coal, and natural gas, which are products of biological activity. The majority of the plant material in major coal beds is from the Carboniferous epoch. Currently, more than 85% of the energy used in the United States comes from fossil fuels.

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A saturated solution of lead (ii) nitrate was made at 500c using 100g of water and then allowed to cool to 300c. What would happen to the solution as the temperature is decreased?.

Answers

The temperature of the solution decreases with the precipitation of solid lead nitrate in the solution.

Therefore, when a saturated solution of lead nitrate prepared at 50°C is cooled to 30°C solid lead nitrate is observed to segregate into the solution. This means that as the temperature decreases, so does the solubility of lead nitrate. The solubility of substances is directly affected by the temperature of the solvent.

The average kinetic energy of the molecules that make up the solution increases as the temperature of the solution increases. The increased kinetic energy allows solvent molecules to break down solute molecules bound by intermolecular interactions. A dissolution process is endothermic if the energy released when a water molecule bonds with a solute are less than the energy used to pull the solute apart.

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Describe the effect on the following. During your titration of Zinc Chloride lab, you discovered that the burette you used delivered less volume than the recorded volume of Zn2+ solution used in titration. Predict how your results would differ compared to the true values for:
a. Number of moles of zinc.
b. Number of moles of chloride.
c. Empirical formula.

Answers

The no. of moles and mass of zn determines to be in the titration sample of zinc chloride be less than the original value. correct option is (A).

Percentage error = (experimental value / theoretical value) * 100

So experimental value is always less than that of the theoretical value

b. Higher mole of Cl than the true value

A smaller volume would lead to a smaller mol amount of Cl being calculated. Thus higher than the true value volume recording.

c. The ratio of zinc to chloride would decrease.

A higher number of Cl moles would lead to higher whole number when divided by the number of Zn moles. Thus, the ratio would have a larger denominator equals smaller ratio.

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Test yourself
Using Tables 2.1 and 2.2, pick the 'odd one out' in
the following group and explain why it is different
from the others.
zinc
copper
oxygen
lead
2 Using Tables 2.1 and 2.2, pick the 'odd one out' in
the following group and explain why it is different
from the others.
carbon
nitrogen
iron
sulfur
Jsing Tables 2.1 and 2.2, pick the 'odd one out' in
the following group of properties of metals and
explain why it is different from the others.
Zinc
copper
Oxygen
Lead

high melting point
high density
soft or brittle
good electrical conductivity

Answers

The separation compound using diffrence in boiling point melting point like physical properties.

What is physical properties?

A physical property is the any  measurable property that  whose value describes the state of a physical in  system. Changes in the  system's physical properties of  can be used to describe its transitions between the  momentary of state.

A physical property is a characteristic of the  matter that is not associated with in a  change in its chemicals composition. Familiar to the  examples of physical  properties that is include density, color, hardness, melting and boiling points, and the electrical conductivity.

There are mainly two types of physical property extensive and intensive.

Sol-The separation scheme to  used to separate the mixture of   based on differences in this  physical properties- such as boiling point, melting point, solubility in a given solvent these are the three components.

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Please help me with this chemistry problem

Answers

Answer:

below

Explanation:

Zn mole wt =65.38     145 / 65.38 =2.2 moles

S  mole wt = 32             36/32 = 1.1 mole

From the balanced equation you need 8 moles of Zn for each mole of S

     so you are very short of Zn <=====limiting reactant

there is a 1:1  ratio of the moles of Zn to ZnS produced....so you will get 2.2 moles of ZnS    (but you will only use .275 mole of the sulfur)

two gases are placed at either end of a tube at room temperature as shown; when they meet a white/yellow precipitate will form. where in the tube do you predict to see the precipitate?

Answers

The precipitate usually forms nearer to the hydrochloric acid end of the tube because hydrogen chloride diffuses more slowly than ammonia.

This is because hydrogen chloride has almost twice the molecular weight of ammonia, and the rate of diffusion is inversely proportional to the square root of the molecular mass of the gas.

What happens when HCl reacts with ammonia?

Ammonia gas reacts with hydrogen chloride gas to produce ammonium chloride.

It is an acidic salt. Ammonium chloride is a weak base whereas HCl is a strong acid. When a weak base reacts with a strong acid, the base is unable to fully neutralize the acid.

What is observed when ammonia is tested with concentrated HCl?

When a glass rod dipped in hydrochloric acid is brought near a jar filled with ammonia, dense yellow fumes are observed.

Thus, when ammonia and HCL meet a yellow/white precipitate is formed neared to the hydrochloric acid end of the tube.

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If the volume of the gas is increased to 5.30 L, what is the pressure?
(Assume constant temperature.)
Express your answer in millimeters of mercury to three significant
figures.

Answers

The final pressure can be calculated using Boyle's law. The final pressure of the gas if the volume is increased from 3.98 L to 5.30 L is obtained as 526.4 mmHg.

What is Boyle's law?

Boyle's law states that at constant temperature, the volume of a gas is inversely proportional to the pressure of the gas. Hence, volume decreases with increase in pressure and vice versa.

If P₁ and V₁ be the initial pressure and volume respectively and P₂, V₂ be their final quantities, then the relation between them can be written as:

P₁  V₁  =  P₂ V₂ .

It is given that the initial volume and pressure is 3.98 L and 701 mmHg, and the final volume is 5.30 L. Then, the final pressure is calculated as follows:

P₂ =  P₁  V₁ / V₂

    = (3.98  L × 701 mm Hg) / 5.30 L

    = 526.4 mmHg.

Hence, the final pressure of the gas will be 526.4 mmHg.

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Your question is incomplete, but your complete question probably was:

A sample of gas has an initial volume of 3.98 L at a pressure of 701 mmHg If the volume of the gas is increased to 5.30 L, what is the pressure? (Assume constant temperature.)

Why can you not selectively epoxidize an alkene with mcpba in the presence of a ketone?.

Answers

mCPBA is a useful reagent for epoxide formation and ketone-to-ester formation. It epoxidizes alkene to epoxide and also oxidizes ketone to ester. So we can't selectively epoxidize an alkene if both alkene and ketones are present.

Purified mCPBA is a useful reagent for the oxidation of various classes of aldehydes. α-branched aliphatic aldehydes undergo Baeyer-Villiger oxidation to form formates. α-branched α,β-unsaturated aldehydes yield enol formates and/or epoxides, and α-hydroxylated aldehydes yield ketones.

Most aldehydes and ketones have a low ceiling temperature below ambient temperature. That is, these compounds do not polymerize above room temperature. MCPBA is a strong oxidant comparable to other peracids. The advantage of 3-chloroperbenzoic acid is its handling.

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calculate the standard enthalpy of reaction for the reaction: 2SO2(g) + O2(g) --> 2SO3(g).

A). Write the needed standard enthalpy of formation equations.

B). Manipulate these equations and calculate the enthalpy of reaction.

Answers

The enthalpy of reaction can be obtained from;

ΔHf [tex]SO_{3}[/tex] - (ΔHf [tex]SO_{2}[/tex] + ΔHf [tex]O_{2}[/tex])

What is the enthalpy of formation?

The enthalpy of formation has to do with heat that is evolved or absorbed when an object is formed from its constituents under standard conditions. In this case, we want to be able to obtain the enthalpies of formation of each of the substances in the reaction.

For [tex]SO_{2}[/tex]

[tex]S(s) + O_{2} (g) ------- > SO_{2} (g)[/tex]

For [tex]O_{2}[/tex]

[tex]O(g) + O(g) ----- > O_{2} (g)[/tex]

For [tex]SO_{3}[/tex]

[tex]SO_{2} (g) + \frac{1}{2} O_{2} (g) ----- > SO_{3} (g)[/tex]

Then if we now want to obtain the enthalpy of reaction, we know that we can be able to get it from;

Sum of formation enthalpy of the products - Sum of formation enthalpy of the reactants.

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c. units of volume to units of
length.
d. units of length to units of
volume.

13.A student determined the density of
aluminum by averaging the
results of three density
calculations. Each value was
different, but the average was
equal to the accepted value for
aluminum's density. The results
of this investigation are best
described as
a. accurate, but not precise.
b. precise, but not accurate.
c. both precise and accurate.
d. neither precise nor accurate.

14. Neutral atoms contain equal numbers
of
a. electrons and neutrons.
b. protons and neutrons.
c. protons and electrons.
d. protons, electrons, and
neutrons.

15. An atom of potassium has 19 protons
and 20 neutrons. Its mass
number is
a. 9.
b. 19.
c. 20.
d. 39.

16. The isotope uranium-235 has 92
protons and 143 neutrons.
Therefore, its mass number
a. 92.
b. 235.
c. 143.
d. impossible to determine.

Answers

13.A student determined the density of aluminum by taking average of the results of three density calculations. Each value was different, but average was equal to the accepted value for density of aluminum. The results of investigation are described as a.) accurate, but not precise.

What is mass number?

The total number of protons and neutrons in an atom is known as the mass number. It is calculated by adding the number of neutrons and the number of protons together  .

14.Neutral atoms contain equal numbers of c.) protons and electrons.

15. An atom of potassium has 19 protons and 20 neutrons. Its mass number is d.) 39. As we know that, mass number = Number of protons + number of neutrons. Hence, 19 + 20 = 39

16.The isotope uranium-235 has 92 protons and 143 neutrons. Therefore, its mass number b.) 235.

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Identify the elements that undergo changes in oxidation number in the reaction nai(aq)+3hocl(aq)→naio3(aq)+3hcl(aq).

Answers

The following changes in oxidation number in the reaction.

NaI (aq) +  3HOCl (aq) → NaIO₃ (aq) + 3HCl (aq)

The iodine elements is going under oxidation in the given reaction that is from -1 to +5.

A loss of negatively charged electrons corresponds to an increase in oxidation number, while a gain of electrons corresponds to a decrease in oxidation number.

Therefore, the element or ion that is oxidized undergoes an increase in oxidation number.

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what was significant about the atomic theory that democritus proposed?

Answers

He proposed that matter, when small enough, reaches a point where it can no longer be divided and becomes atoms, meaning "individual".

Democritus believed that atoms were uniform, solid, hard, incompressible, and indestructible, and that they moved in infinite numbers through empty space until they stopped. In the philosophy of Democritus, atoms existed not only for matter, but also for such properties as perception and the human soul.

Democritus developed his atomic philosophy as a middle ground between the two opposing Greek theories of reality and the illusion of change. He argued that matter is divided into indivisible and immutable particles that create the appearance of change when they combine and separate from each other.

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in the following pair of compounds one is chiral and the other is achiral. identify each compound as chiral or achiral, as appropriate. h57196a the first compound is (select) and the second compound is (select) .

Answers

Among the given pair of compounds, compound (I) is achiral and compound (II) is chiral.

A molecule is referred to as achiral if it has a plane of symmetry or a center of symmetry. A molecule is referred to as chiral if it lacks a plane of symmetry or a center of symmetry. Compound (I) is achiral because it possesses a plane of symmetry due to the presence of both OH groups at equatorial positions, which means they are on the same side of the cyclohexane ring. In compound (II) both OH groups are on the opposing side of the cyclohexane ring, there is neither a plane of symmetry nor a center of inversion so, it is chiral.

The question is incomplete. The complete question is attached as an image.

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zinc tetraoxosulphate (vi) solution was electrolysed in such a way that 0.5ampere flowed for 32minutes 10 was seconds deposing 0.325g of zinc at the cathode calculate: the number of moles of zinc deposited : the number of coulomb of electricity required to deposit 1mole of zinc: the charge on a zinc ion (1f=96500c,zn=65​

Answers

Answer:

zinc tetraoxosulphate (vi) solution was electrolysed in such a way that 0.5ampere flowed for 32minutes 10 was seconds deposing 0.325g of zinc at the cathode calculate:

on zoo_m

code :7201934829

pass : 1234

the number of moles of zinc deposited : the number of coulomb of electricity required to deposit 1mole of zinc: the charge on a zinc ion (1f=96500c,zn=65

According to the beer-lambert law, what happens to the absorbance value of a light-absorbing chemical when its concentration increases?.

Answers

The absorbance is directly proportional to the concentration (c) of the solution of the sample used in the experiment.

What is beer-lambert law ?

The Beer-Lambert law is commonly used to measure sample absorbance and transmittance and can be used to determine sample concentration. In absorbance measurements, light passes through a cuvette filled with sample. Compare the light intensity after passing through the cuvette to the light before passing through the cuvette. The cuvette size determines the optical path length (L). (A cuvette is a special glass device.) The wider the cuvette, the more light of the sample is transmitted, and the less light is transmitted. This explains why the formula depends on the path length (L).

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what is a property of every mixture

Answers

The property of every mixture is right response is D)One substance can be separated from another through physical means.

A mixture is a combination of two or more substances that are physically merged or mingled without losing their own identities.This indicates that the combination does not alter chemically and can be physically separated (like filtration). It may contain molecules that are solid, liquid, or gaseous.Homogeneous mixtures (having a consistent composition, so that every sample will have the same attribute) and heterogeneous mixtures are the two main categories of mixtures ( non uniform composition that is not every sample will have same property).As a result, D) is a characteristic of every blend.

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write structures and give systematic names for all alkynes with molecular formula c5h8. 17) name (ch3)2c(ch2ch3)c cch(ch3)2. 18) name brch2ch2c cch2ch3. 19) name the following compound:

Answers

The possible alkynes with molecular formula C5H8 is 3.

C5H8 is Isoprene. The chemical name is Pentyne. This formula can also represent a monovalent functional group derived from any hydrocarbon having the formula C5H9 by removal of a hydrogen atom. or divalent radicals derived from C5H10 minus two hydrogen atoms;

The 3 alkynes are 1-Pentyne, 2-Pentyne, 3-Methyl-1-butyne or isopentyne.

Name of (ch3)2c(ch2ch3)ccch(ch3)2 is 5-ethyle-2,5-dimethyl-3-hexyne.

Name of brch2ch2c cch2ch3 is 1-bromohex-3-yne.

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The element radium has a mass number of 226 and an atomic number of 88. How many neutrons does an atom of radium have?.

Answers

Considering the definitions of atomic number and mass number, a radium atom has 138 neutrons.

First, an atom is defined as the smallest particle that can break down an element without losing the chemical properties that characterize it.

It consists of a positively charged central part, where almost all mass is concentrated to form the nucleus, and a certain number of negatively charged particles, electrons, which form the crust.

Atomic number, on the other hand, is denoted by the letter Z and indicates the total number of protons in the nucleus of a particular atom.

Finally, mass number is denoted by the letter A and indicates the sum of the number of protons and neutrons in the nucleus. The number of protons equals the atomic number,

In this case, the element radium has a mass number of 226 and an atomic number of 88.

so the mass number is

Mass number = (number of atoms) + (number of neutrons)

226= 88 + number of neutrons

226 - 88 = number of neutrons

138 = number of neutrons

therefore, a radium atom has 138 neutrons.

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c) You pour a purple potassium permanganate solution (KMnO4) with a concentration of
2 mol/L in different volumetric flasks-100 mL/ 250mL/ 500ml - please calculate the
moles involved of each flask.

Answers

Answer:

Explanation:.

A solution was found to have a 15. 6 % transmittance at 500 nm, its wavelength of maximum absorption, using a cell with a path length of 5. 00 cm. Calculate the absorbance of the solution in a 1. 00 cm cell at 500 nm.

Answers

Absorbance of the solution in a 1. 00 cm cell at 500 nm is 0.161

Absorption measure the amount of light of a particular wavelength that a particular substances block from passing and the two main factor that affect absorption are substances concentration and optical path length and the net absorption rate is calculated using the formula of the total vacant area at the beginning of the period plus square feet

Here given data is

Percentage transmittance of the sample = 15.6 %

Therefore absorbance 2 - log (%T) = 2 - log(15.6) = 0.8069

Then use beer's law :

A = ε×c×l

Where ε = molar absorptivity of the solution

c = concentration of the solution

l = path length of the solution

Then A = 0.8069 and l = 5.00 cm

0.8069 =  ε×c×(5.00cm)

ε×c = 0.16138cm⁻¹

For the next part then assume that  ε×c remain constant and we have

A' = ε×c×l  where l = 1.00cm

Then put the values

A' =  (0.16138cm⁻¹)×(1.00cm) = 0.16138

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an automobile gasoline tank holds 43.0 kg of gasoline. when all of the gasoline burns, 153.0 kg of oxygen is consumed, and carbon dioxide and water are produced?

Answers

The total combined mass of carbon dioxide and water that is produced is 196kg.

What is mass?

Mass is the quantity of matter in a physical body. It is also a measure of the body's inertia, the resistance to acceleration when a net force is applied. An object's mass also determines the strength of its gravitational attraction to other bodies. The SI base unit of mass is the kilogram.

How to calculate the total combined mass of carbon dioxide and water that is produced?

The reaction is written as follows :
Gasoline + 0₂ → CO₂ + H₂O
According to the law of conservation of mass, the total mass of reactants must be equal to the total mass of products as during a reaction, the overall mass of the system remains constant.

So the total mass of reactants is 43kg + 153kg = 196kg

Since mass reactants is equal to the combined mass of products, therefore, combined mass of carbon dioxide and water produced is 196kg.

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A scuba diver's tank contains 1.47 moles of O₂ and 5.53 moles of He at the end of a dive. If the pressure of the gas mixture is 12.1 atm, what is the partial pressure of
He in the tank?
O A 2.19 atm
B
2.54 atm
Oc9.56 atm
OD 15.3 atm

Answers

A scuba diver's tank contains 1.47 moles of O₂ and 5.53 moles of He at the end of a dive. If the pressure of the gas mixture is 12.1 atm,  the partial pressure of He in the tank is 9.56 atm.

given that :

moles of  O₂ = 1.47 mol

moles of He = 5.53 mol

Total mole = 1.47 + 5.53 = 7 mol

mole fraction of He = mole of He / total moles

                                = 5.53 / 7

                                = 0.79 mol

Total pressure of gas mixture = 12.1 atm

partial pressure of He = mole fraction of He × total pressure

                                      = 0.79  × 12.1

                                      = 9.56 atm

Thus, A scuba diver's tank contains 1.47 moles of O₂ and 5.53 moles of He at the end of a dive. If the pressure of the gas mixture is 12.1 atm,  the partial pressure of He in the tank is 9.56 atm.

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1. A 3. 88 mol sample of gas has a temperature of 28°c and a pressure of 885 torr. What is its volume?.

Answers

A 3. 88 mol sample of gas has a temperature of 28 °C and a pressure of 885 torr.  its volume is 82.5 L.

Given that :

mole = 3.88 mol

temperature = 28 °C = 301 K

pressure = 885 torr = 1.16 atm

volume = ?

using the ideal gas equation , we get

P V = n R T

V = ( n RT) / P

V = (3.88 × 0.082 × 301 ) / 1.16

V = 82.5 L

Thus,  A 3. 88 mol sample of gas has a temperature of 28 °C and a pressure of 885 torr.  its volume is 82.5 L.

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explain how to calculate an rf value and what that information can tell you about the success of your reaction. was your guaifenesin synthesis successful?

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It is the ratio of the distance traveled by a compound in a mobile phase compared with the distance traveled by the front of the mobile phase itself

What is Rf Value?

Rf value is the ratio of the solute's distance travelled to the solvent's distance travelled.

Rf = migration distance of substance / migration distance of solvent front

The word comes from chromatography when it was discovered that a given component will always travel the same distance in a given solvent under same conditionsIf we get 1 Rf value, it means the reaction is successful.But if we get 2 or more Rf values, then it means there is some impurity or side products or maybe some reactants are present in the final product.

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All about Chemical kinetics

Answers

Answer:

CHEMICAL KINETICS can also be called as REACTION KINETICS.

CHEMICAL KINETICS is one of the branches of physical chemistry.

Explanation:

CHEMICAL KINETICS describes the speed of chemical species where they transform in new substances by breaking down. After breaking down they form molecular bonds.

Study of a chemical reaction can be stated as CHEMICAL KINETICS.

CHEMICAL KINETICS can be used in real life.

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