Context: find how much vinegar and baking soda needed to fill 750 ml plastic bag with CO2. How do I calculate how much vinegar I need. Answer should be around 35-40 grams

In order of decreasing boiling point, CH3OH > H2S > C2H6 > Ar. The strongest types of bonding are ionic, covalent, hydrogen, and van der waals forces, in that order.

London dispersion forces (LDF), dipole-dipole interactions, and hydrogen bonds are different intermolecular forces. All substances have LDF, but molecules can have combination of these three types of intermolecular interactions.

The dipole-dipole forces increase with increasing polarity. Dipole-dipole forces are in an unique (stronger) case in this situation. It is possible for it to exist between a molecule with an N, O, or F atom that has a hydrogen atom bonded to it directly and another molecule with an N, O, or F atom that has a lone pair of electrons.

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Answer:

1. or A. : .209%

B. : 1000.0 x .20

Explanation:

After considering the results of the classification tests, the possibilities can be narrowed down further by determining the melting point of the B Schiff addition product.

A compound's melting point is helpful in two ways: it provides information on the composition's identity and degree of purity. Impurities will affect a compound's melting point, resulting in broader and lower melting point ranges.

First, the solubility test must be performed in order to remove soluble contaminants from the target molecule. The desired chemical and the soluble impurities are dissolved in a minimum of near or boiling solvent once a suitable solvent has been selected. The solution is then given time to gradually cool.

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The maximum number of moles of Fe could be produced is 0.1 option - A is correct.

The grams to moles formula must be used in order to accurately calculate the number of moles, n, of a substance with a given mass, m, (in grams): M is the material's molar mass, so n = m / M.

According to the periodic table, the molecular mass of iron, to three decimal places, is 55.845 and its elemental symbol is Fe.

Moles = mass/molar mass

Molar mass of Fe = 56

Number of moles of Fe = 8/56

Number of moles of Fe = 0.14moles.

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The average speed of the runner in miles per hour would be 8.18 miles per hour.

The average speed of a moving object is the ratio of the total distance traveled by the object and the total time taken to cover the distance. Mathematically, this can be expressed as;

Average speed = total distance traveled/ total time taken

In this case;

Total distance = 10 km

Total time = 45 minutes, 35 seconds

In order to find the average speed in miles per hour, let's convert the distance from km to mile and the time to hour.

1 km = 0.621371 mile

10 km = 10 x 0.621371

          = 6.21371 miles

1 hour = 3600 seconds

60 seconds = 1 minute

45 minutes = 45 x 60

                    = 2700 seconds

Total time = 2700 + 35

                 = 2735 seconds

3600 seconds = 1 hr

2735 seconds =  2735/3600

                         = 0.7597 hour

The average speed of the runner in miles per hour:

6.21371/0.7597 = 8.18 miles per hour

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Answer: 144.2

Explanation:

Note that [tex]23.0^{\circ}\text{C}=298.0\text{ K}[/tex].

Using the formula [tex]\frac{V_1}{T_1}=\frac{V_2}{T_2}[/tex] yields:

[tex]\frac{2.45}{T_1}=\frac{1.75}{298}\\\\T_1=\frac{298 \times 2.45}{1.75} \text{ K}\\\\T_1=\frac{298 \times 2.45}{1.75}-273^{\circ}\text{C}\\\\T_1=144.2^{\circ}\text{C}[/tex]

The mass of the oxygen that is formed from the decomposition of the aluminium chlorate is 27.4 g.

We define a decomposition reaction as the kind of reaction that involves the break up of a substance so as to obtain the components of the substance.

The compound that is being broken up can be shown in the equation that we have below;

2Al(ClO₃)₃ → 2AlCl₃ + 9O₂

Thus

Number of moles of aluminum chlorate = mass/ molar mass

= 52 grams /277 g/mol

= 0.19 moles

If 2 moles of aluminum chlorate would form 9 moles of oxygen

0.19 moles of aluminum chlorate would form 0.19 moles * 9/2

= 0.855 moles

Mass of the oxygen = 0.855 moles * 32 g/mol

= 27.4 g

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the unknown salt AS X H₂O was analyzed and found to contain 16.4 percent water. If the anhydrous salt has a formula mass of 183 amu then the water of crystallization (X) for the hydrate is 7.

Those compound from which all the water molecules are removed is termed as anhydrous salt. These types of compounds can be used as desiccants (drying agents) that means they can absorb water from their surrounding.

In a crystalline state of a salt the no. of molecules of water are present in a definite molecular proportion is known as Water of crystallization.

Example : CaSO4.5H2O consist of 5 Water of crystallization.

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Analyses revealed that 16.4% of the unidentified salt AS X H2O contained water. The hydrate's water of crystallisation (X) is 7 if the anhydrous salt's formula mass is 183 amu.

What is sodium anhydrous?

Anhydrous salts are substances from which all of the water molecules have been eliminated. These kinds of substances can serve as desiccants, or drying agents, by absorbing water from their surroundings.

Water of crystallisation is the term used to describe the quantity of water molecules present in a specific molecular proportion in a salt that has crystallised.

Example: The water of crystallization for CaSO4.5H2O is 5.

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In contrast, the ratio and total quantity of stable atoms are defined by the half-life.Whatever the initial number of atoms, the percent of decrease is constant.They can determine the quantity of original carbon-14 by using the carbon-14 half-life of 5,730 years and the ratio of carbon-12 to carbon-14.

Since approximately half of the nuclei of each atom decay with each half-life, the number of radioactive atoms falls as the number of half-lives grows.

A longer dose interval will result from a longer half-life, which is reliant on both clearance and volume of distribution. For example, a CYP1A2 or CYP2C19 substrate can cause a decrease in clearance.

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From the available choices, Heterogeneous combinations make up potting soil.

In heterogeneous blends, we can easily discern between the various components. The soil's components make up a heterogeneous mixture since they don't all have the same physical and chemical properties.

It's a great idea to grow indoor and potted plants in potting soil. It is typically more nutritious and well-balanced for the plants. The phrase "soil heterogeneity" refers to the diversity of soil traits or taxonomic groupings found in a certain area. Potting soil is a heterogeneous mixture since its composition is not homogeneous.

Tap water is uniform and impossible to identify salt particles without the proper equipment since salt virtually completely dissolves into it.

Chlorine gas (Cl) is a component of homogeneous compounds. Potassium and chlorine are a mixture because all of the components are heterogeneous, or separate.

Table salt is a homogeneous mixture. It contains several ingredients, hence it is not a compound.

The only heterogeneous substance would be potting soil since, without the use of specialist equipment, we can see a variety of particles with different sizes, forms, colors, and other properties.

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Sodium reacts faster, producing enough heat to melt itself and occasionally ignite the hydrogen gas, resulting in the characteristic yellow-orange flame of sodium. The potassium reacts violently, bursting into a flame with the typical violet color of potassium.

Potassium has the chemical symbol K and the atomic number 19. Potassium is a silvery-white metal that can be cut with a knife with little effort. In seconds, potassium metal reacts with atmospheric oxygen to form flaky white potassium peroxide.

Sodium and potassium, for example, react violently with cold water. These are exothermic reactions. The reaction is so violent and exothermic that the hydrogen produced instantly catches fire.

Thus,  The potassium reacts violently, bursting into a flame with the typical violet color of potassium.

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This reaction is an example of double displacement reaction.

When two reactants change ions to create two new compounds, the reaction is referred to as a double displacement reaction. Double displacement reactions usually result in the development of a precipitate as a product.

The positive-charged cations and negative-charged anions of the reactants swap places (double displacement) to generate two new products in this sort of reaction. Also called: A metathesis reaction or a double replacement reaction are other names for a double displacement reaction.

The equation becomes:

AlBr₃ + K₂SO₄ → KBr + Al₂(SO₄)₃

Aluminium bromide (AlBr₃) reacts with potassium sulphate (K₂SO₄) to form potassium bromide (KBr) along with aluminium sulphate (Al₂(SO₄)₃).

Balanced reaction becomes:

2AlBr₃ + 3K₂SO₄ → 6KBr + Al₂(SO₄)₃

2 mol      3 mol       6 mol    1 mol

In this reaction, two moles of aluminium bromide react with three moles of potassium sulphate to produce six moles of potassium bromide along with one mole of aluminium sulphate.

So, this reaction is an example of double displacement reaction.

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The electron configuration of Cu²+ ion  - [tex]1s^2 2s^2 2p^6 3s^2 3p^6 3d^9[/tex]

The electron configuration of Co³ + ion - [tex]1s^2 2s^2 2p^6 3s^2 3p^6 3d^6[/tex]

When we are talking about the electron configuration, we are talking about the way that the electron is arranged around the nucleus of the atom. We know that electrons in the atom can be arranged in energy levels in the atom of the element.

We are asked to write here the electron configuration of the copper II ion and that of the cobalt III ion. In either case, we have to know that electrons have been removed from the neutral atom. In the first case, there are two electrons that have been removed while in the second case, there are three electrons that have been removed.

Thus in writing the electron configuration of the specie we have to take into account the number of the electrons that have been lost due to ion formation. Recall that the ground state is the lowest energy state of the chemical specie.

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Answer: repel

Explanation: it's not yet known why like charges repel each other, so

but there's your answer, yw.

Both Saturday's earthquake and the one in 2010 are thought to have been caused by the Enriquillo-Plantain Garden fault system, according to the United States.

The Enriquillo-Plantain Garden fault zone (EPGFZ or EPGZ) is indeed a network of active coaxial left lateral-moving strike - slip faults faults that extends along the southern coast of Hispaniola, the island that is home to Haiti and the Dominican Republic.

As one of Haiti's main plate-bounding fault systems, the Enriquillo-Plantain Garden fault zone is very well known. Initially believed to be the cause of the Mw 7.0 earthquake that struck Port-au-Prince on January 12, 2010, the strike-slip fault is located close to the city.

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The radiation dosage in rads for a 65 ‑kg person that is exposed for 4.0 s to a 3.0 Ci source of beta radiation is 8.54 x 10⁻⁴ J/kg.

Radiation is defined as the energy that can be depicted as waves or particles and travels from one location to another. The DNA in our cells can be harmed by radiation.

The radiation dosage is determined by the ratio of the total dose to the exposed person's mass.

3 Ci beta radiation = 3 x (3.7x10¹⁰) = 11.1 x 10¹⁰decay/s.

Total beta energy taken in over 5 seconds

Et  = ( 11.1 x 10¹⁰ ) x 5 x 1.0 x 10⁻¹³

Et = 55.5 x 10⁻³

The person's radiation dose is estimated as follows;

Rd = ET / m

Rd = 55.5 x 10⁻³ / 65 kg

Rd = 8.54 x 10⁻⁴ J/kg.

Thus, the radiation dosage in rads for a 65 ‑kg person that is exposed for 4.0 s to a 3.0 Ci source of beta radiation is 8.54 x 10⁻⁴ J/kg.

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Answer:

postsynaptic membrane

Explanation:

Hope it helps!

Answer: 1.67 atm

Explanation:

Since the molar amounts are equal, this means that the partial pressure of acetylene is 1/3 of the total chamber pressure.

Answer:

the new volume of the balloon after 0.50 mol of CO2 is added is 67 L.

Explanation:

To solve this problem, we need to use the ideal gas law, which states that the pressure of a gas is directly proportional to its temperature and number of moles, and inversely proportional to its volume. This relationship can be written as:

PV = nRT

Where P is the pressure of the gas, V is the volume of the gas, n is the number of moles of the gas, R is the ideal gas constant, and T is the temperature of the gas.

In this problem, the pressure, temperature, and number of moles of the gas all remain constant, so we can rearrange the ideal gas law to solve for the volume of the gas:

V = nRT/P

Plugging in the given values, we find that the volume of the gas is:

V = (0.50 mol CO2)(0.08206 Latm/molK)(298 K)/(1 atm)

V = 67 L

Answer:

12.4 g

Explanation:

M=1.25M

v=0.16L

molar mass = 62 g per mole

M=n/v

n=M*v

n=1.25M*0.16

mass of substance = n * M

m=0.2mole *62 g/mole

m=12.4g

Answer:

1.3

Explanation:

Answer:

1.11 grams CaCl₂

**I am aware that this is not one of the answer choices, but I pretty confident that this should be the correct answer according the the given values

Explanation:

To find the mass of CaCl₂ necessary, you need to

(1) convert the volume from mL to L (1,000 mL = 1 L)

(2) calculate the amount of moles (M = moles / L)

(3) convert moles to grams (using the molar mass)

It is important to arrange the conversions/ratios in a way that allows for the cancellation of units. The final answer should have 3 sig figs like the given values.

(Step 1)

  100. mL CaCl₂                  1 L
--------------------------  x  -------------------  =  0.100 L CaCl₂
                                      1,000 mL

(Step 2)

Molarity (M) = moles / volume (L)                 <----- Molarity ratio

0.100 M = moles / 0.100 L                            <----- Insert values

0.0100 = moles                                             <----- Multiply both sides by 0.100 L

(Step 3)

Molar Mass (CaCl₂): 111 g/mol

 0.0100 moles CaCl₂             111 grams
---------------------------------  x  ---------------------  =  1.11 grams CaCl₂
                                                  1 mole

Given chemical equation:

CuSO₄ + 2HI → Cu₂SO₄ + I₂ + H₂SO₄

CuSO₄ + 2HI - reactants (option - b) is correct.

A chemical equation is composed of the "yields" arrow, the "reactants," and the "products" components. Compounds or elements that are required for the reaction and go through chemical change while the reaction is occurring are known as reactants. Yield is typically represented by an arrow in reactions and refers to the ability to "produce" or "form."

Numerous observable factors, such as color change, energy change (such as a rise in temperature or the production of light), gas production, precipitate formation, and changes in physical properties, can be used to detect chemical reactions.

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The amount of energy required to heat 100 g of water is 268000 J.

Energy is the ability or the capacity to perform work.

To calculate the amount heat energy required to change the water to steam, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the amount of energy required is 268000 J.

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Answer:

a

Explanation:

hope this helps for now

According to scientific notation, the answer of the operation is 7.04×10⁵.

Scientific notation is defined as a way of expressing numbers which are too large or too small so that they can be easily written in decimal form. It can be referred to the scientific form or the scientific index form or even the standard form.

Base ten notation is used by scientists, engineers as it helps in simplification of arithmetic operations. It contains the significant figures which include all non-zero numbers , the zeroes between significant digits and zeroes which are needed to be significant.

In scientific notation, the base should always be ten. The exponent should be a non-zero integer and it can be either positive or negative.In this case answer is obtained as 6.50×10⁵ +0.540×10⁵=7.04×10⁵.

Thus, the answer in scientific notation is 7.04×10⁵.

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It's a great day at the beach, and you're there for some fun and sun! One reason the day is so special is that the weather is so pleasant—sunny and warm. Energy from the sun warms the beach with Radiation. The breeze is warm enough to keep you warm, but it also keeps you from overheating. Ocean breezes move because energy is Convection. When you lie down on the sand, you spread a beach towel down so that the sand will not make you too hot by transferring heat by Conduction.

Radiation is energy that comes from a source and travels through space at the speed of light. This energy has an electric field and a magnetic field.

Heat is transferred through convection, which is the large-scale movement of molecules inside gases and liquids. Conduction is used to move heat from the object to the fluid initially, but fluid motion is responsible for the bulk of the heat transfer.

Heat energy is transferred through the mechanism of conduction when nearby atoms or molecules collide. In solids and liquids, where particles are more closely spaced, conduction happens more easily than in gases, where particles are more widely spaced.

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Exothermic reactions are

1) 2H2+O2 ⇒2H20+Heat

2) 2C2H2+5O2⇒4CO2+2H20+Heat

Endothermic reactions are

3) CH4+Heat ⇒CO+2H2

4) 2CO2+Heat⇒2CO+O2

What are exothermic and endothermic reactions?

Exothermic reactions are those reactions in which energy is released and in endothermic reactions energy is required to proceed the reaction.

1) & 2) are exothermic because energy is released in reaction 3) & 4) are endothermic because energy is required so called endothermic reaction.

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Oxygen isotope analyses of both deep-sea cores and ice cores (from the Greenland ice sheet) indicate that the Pleistocene was characterized by frequent and widespread climate variability.

This included cycles of glacial advance and retreat.

These changes were caused by variations in the Earth's orbit and tilt, affecting the amount of solar radiation received by different parts of the Earth.

The Pleistocene also saw a series of major ice ages, during which ice sheets and glaciers covered most of the Earth's surface. These ice ages were interspersed with shorter, warmer periods called interglacials. During that time, the Earth's climate resembled the present climate.

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Answer:

Mass - measured in kilogram or tell the amoout of matter in an object.

Volume - is the amout of space that's an object taken