A beaker contains a 25 ml solution of an unknown monoprotic acid that reacts in a 1:1 stochiometric ratio with naoh. Titrate the solution with naoh to determine the concentration of the acid.

As, 150,000,000 km = 1 AU. To convert km to AU, divide the distance in km by 150,000,000.

In this way, we can find the distance.

What is distance?

Distance is an object's overall motion in a directionless fashion. Regardless of an object's starting or ending point, distance can be defined as the amount of ground it has travelled.

In molecular geometry, the average distance between the nuclei of two bound atoms in a molecule is referred to as bond length or bond distance.

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If the product contain succinimide, its IR spectra should show aprominent peak at around 1700 cm-1, indicating an incomplete reaction.

Because various elements have varying quantities of protons and varied numbers and configurations of electrons, they also have different spectra. The variations in spectra are a result of the energy that atoms absorb or emit as their electrons shift between different energy levels.

Every element generates an own collection of spectral lines. A line spectrum can be used to distinguish between different elements because no two produce the same spectral lines.

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In a spectrophotometer, both absorbance and transmítanse indicate the amount of light passing through a sample. A high absorbance corresponds to a low transmittance.

What is absorbance?

It quantifies a substance's ability to absorb light of a certain wavelength. It is equal to the reciprocal of the transmittance logarithm. The amount of light that a solution absorbs, also known as optical density.

What is Transmittance?

It is the ratio of light energy that falls on a body to light energy that passes through it. In other words, it is the ratio of light passing through the sample to light incident on it, whereas reflectance is the ratio of light reflected to light incident.

In a spectrophotometer, both absorbance and transmittance indicate the amount of light passing through a sample. A high absorbance corresponds to a low transmittance.

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The initial moles of the HI introduced is 6.2 moles.

We know that the equilibrium constant can only be obtained from the concentration of the substance at the point of equilibrium. We would have to set up the ICE table as shown below;

            2HI ⇆  [tex]H_{2}[/tex]    +   [tex]I_{2}[/tex]

I            a           0          0

C         - x           + x       + x

E         a - x        1.8        1.8

We can see that in this case; x = 1.8 and the equilibrium constant = 1/6 = 0.17

K = [ [tex]H_{2}[/tex]  ] [ [tex]I_{2}[/tex]]/[HI]^2

0.17 = (1.8)^2/ (a - 1.8)^2

0.17 = 3.24/(a - 1.8)^2

0.17a^2  - 0.61a + 0.55 = 3.24

0.17a^2  - 0.61a - 2.69 = 0

a=6.2 M

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As a result, we already have one bond. We require three lone pairs of electrons for the oxygen to have a negative one formal charge.

Three unpaired electrons and one non-bonding lone pair on the oxygen can be utilized to make bonds with three hydrogen atoms.

An oxygen atom has three valence electron pairs since it has six valence shell electrons. Since oxygen creates two bonds, we know that two electrons are required to create those two bonds. There are now just two electron pairs remaining that are not involved in bonding.

There are three valence electron pairs in an oxygen since it has six valence shell electrons.

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The melting ice weighs 50.3 grams. When the ice and water mixture has come to a uniform temperature of 0 °C.

Subtracting the combined mass of the cup, water, and ice cubes from the combined mass of the cup, water, and ice cubes yields the mass of the ice cubes.

where,

q = heat released

m = mass of water = 100 g

c = specific heat capacity of water = 4.186 J/g.°C

T = change in temperature = 60-100 = -40

Putting values in equation , we get:

q = 100 * 4.186 * -40

q = -16744j

Ice will absorb the heat that the water releases.

So, amount of heat absorbed by ice = -q = -(-16744) J = 16744 J

We employ the following equation to determine the reaction's enthalpy change:

H = q/m

where,

q = amount of heat absorbed = 16744 J

m = mass of ice melted = ?

H = heat of fusion = 333 J/g

Putting values in equation , we get:

333J/g = 1674/ m

m = 1674 / 333 = 50.3g

Consequently, 50.3 g of ice will have melted

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The number of atoms contained by 6 moles of aluminium is 3.612 × 10²⁴ atoms of Al.

The number of atoms contained by a substance can be calculated by multiplying the number of moles in the substance by Avogadro's number.

Avogadro's number is the number of atoms present in 12 grams of isotopically pure carbon-12, being 6.02214076 × 10²³. By definition, it is the number of elementary entities (atoms or molecules) comprising one mole of a given substance.

According to this question, a reaction occurs between aluminum and aqueous solution of copper (I) sulfate. If there are 6 moles of aluminium, the number of atoms in this aluminium can be calculated as follows:

no of atoms = 6 × 6.02 × 10²³

no of atoms = 36.12 × 10²³

no of atoms = 3.612 × 10²⁴ atoms of Al

Therefore, 3.612 × 10²⁴ atoms of Al is the number of atoms contained in 6 moles of aluminium.

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Answer:

heat energy

Explanation:

I think because of the collisions of all the atoms/molecules that were accelerated because of the heat from the initial reaction and first collisions, heat is generated.

also, oxygen is added to the flame from the air as well :)

Melting, vaporization and sublimation are changes of state that are characterized by atoms that gain energy.

What is Melting?

The physical process that causes a substance's phase to change from solid to liquid. This happens when the solid's internal energy rises, usually as a result of heat or pressure being applied, which raises the substance's temperature to the melting point.

What is vaporization?

The transformation of a substance into a gaseous (vapour) phase from its liquid or solid state. Boiling is the term for the vaporization process when conditions permit the creation of vapour bubbles within a liquid.

What is Sublimation?

The immediate transition of a material from its solid to its gas state without first going through its liquid phase is called the sublimation process.

Hence, melting, vaporization and sublimation are changes of state that are characterized by atoms that gain energy.

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A halogen substituent can be replaced by a deuterium atom in the preparation of a deuterated compound :

CH₃CHBrCH₂CH₃ + Mg + ether ---> CH₃CHMgBrCH₂CH₃  + D₂O  -->  

                                                                                        CH₃CHDCH₂CH₃

In The reaction with the deuterium donor , the Grignard reagent converts into R- D . the grignard reagent react with proton donor to convert R - MgX to R-H.  The grignard reagent the magnesium salt. the grignard reagent is an organometallic compound. the formula for the grignard reagent is RMgX.

CH₃CHBrCH₂CH₃ + Mg + ether ---> CH₃CHMgBrCH₂CH₃

CH₃CHMgBrCH₂CH₃  + D₂O  -->        CH₃CHDCH₂CH₃

Thus, the above reaction is the preparation of a deuterated compound.

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The chemical compound diborane has the molecular formula B2H6 and is made up of boron and hydrogen atoms. Diborane is a highly reactive oron hydraidw, which was once a possible rocket fuel for the us space program

Boranes are the name given to compounds that contain both boron and hydrogen atoms. One of the most basic boron hydrides is diborane. Boron hydrides and air combine effectively to create explosive combinations. At normal temperature, this material will fire rapidly. Diborane also goes by the names boro ethane and diboron hexahydride.

At room temperature, pure diborane does not react with oxygen or air, but instead produces significant amounts of impure B2O3 and energy.

3O2 + B2H6 = 3O3 + 3H2O

H equals -2165 KJ mol-1.

Trimethyl Borate is produced when diborane and methyl alcohol combine.

6CH3OH + B2H6 = 2B(OCH3)3.

ΔH = -2165 KJ mol-1 – Diborane reacts with methyl alcohol to give trimethyl Borate. B2H6 + 6CH3OH → 2B (OCH3)3 + 6H2

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The energy is required to remove a proton from ¹⁵N₇ is

The reaction to remove the proton is given as follows :

¹⁵N₇  ---->   ¹⁴C₆  +  H

The mass of ¹⁵N₇   =  15.000109

the mass of ¹⁴C₆ = 14.003242

The mass of H = 1.007825

The energy requires to remove a proton is given as:

E = ( 14.003242 + 1.007825 - 15.000109) u

E = 0.010958 × 9312.5 MeV

E = 10.2046375 MeV

Thus, energy is required to remove a proton from ¹⁵N₇ with  the masses of the atoms ¹⁵N₇ , ¹⁴C₆ and H are 15.000109 u , 14.003242 u and 1.007825 u , respectively is 10.2046375 MeV.

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HOMOGENEOUS

✔️ 1. flat soda pop

✔️ 2. cherry vanilla ice cream

✔️ 3. salad dressing

✔️ 4. sugar

HETEROGENEOUS

5. soil

aluminum foil

black coffee

Homogeneous substances and mixtures are uniform in composition and have the same properties throughout. Heterogeneous substances and mixtures are not uniform in composition and can have different properties in different parts.

Flat soda pop is a homogeneous mixture because it is a uniform mixture of water, carbon dioxide gas, and various flavors and sweeteners.

Cherry vanilla ice cream is a homogeneous mixture because it is a uniform mixture of milk, cream, sugar, cherries, and vanilla flavor.

Salad dressing is a homogeneous mixture because it is a uniform mixture of oil, vinegar, and various flavors and seasonings.

Sugar is a homogeneous substance because it is a pure substance made up of molecules with the same chemical formula.

Soil is a heterogeneous mixture because it is made up of a combination of minerals, organic matter, water, and air, which can vary in composition and properties in different parts of the mixture.

Aluminum foil is a heterogeneous mixture because it is made up of thin sheets of aluminum metal mixed with other substances, such as coatings or additives, which can vary in composition and properties in different parts of the mixture.

Black coffee is a homogeneous mixture because it is a uniform mixture of water, coffee beans, and various flavors and aromas.

The classification of the substances and mixtures as either homogeneous or heterogeneous:

HOMOGENEOUS:

Flat soda pop: ✔️

Salad dressing: ✔️

Sugar: ✔️

Black coffee: ✔️

HETEROGENEOUS:

Cherry vanilla ice cream: ✔️

Soil: ✔️

Aluminum foil: ✔️

Any material or combination that is homogeneous throughout and difficult to discern with the eye is referred to as homogeneous matter. Due to their similar composition, flat soda pop, salad dressing, sugar, and black coffee are categorized as homogenous in this example.

Contrarily, heterogeneous matter describes substances or mixes that are visibly distinct and have an uneven or non-uniform composition. Aluminum foil, cherry vanilla ice cream, and dirt are all examples of heterogeneous materials since they all have distinct visible components or phases.

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The Bronsted-Lowry acid, base and the conjugate acid, and the conjugate base in each of the following reactions are mentioned below serially:

Bronsted-Lowry acid                                  Bronsted-Lowry base

HNO₃                                                           H₂O

H₂O                                                              NH₃

H₂SO₄                                                          OH⁻

H₂O                                                              C₂H₃O₂⁻

H₂PO₄⁻                                                         OH⁻

H₃O⁺                                                             H₂PO₄⁻

HCO₃⁻                                                           H₂O

H₂O                                                               HCO₃⁻

Conjugate acid:                                           Conjugate base:

H₃O⁺                                                             NO₃⁻

NH₄⁺                                                             OH⁻

H₂O                                                              HSO₄⁻

HC₂H₃O₂⁻                                                    OH⁻

H₂O                                                              HPO₄²⁻

H₃PO₄                                                          H₂O

H₃O⁺                                                            CO₃²⁻

H₂CO₃                                                          OH⁻

Bronsted-Lowry acids are substances that donate protons or H+ ions to other compounds to form conjugate bases. Bronsted-Lowry bases are substances that accept protons or H+ ions from other compounds to form conjugate acids.

For the given reactions:

a. HNO₃ + H₂O <---> H₃O⁺ + NO₃⁻

Bronsted-Lowry acid: HNO₃

Bronsted-Lowry base: H₂O

Conjugate acid: H₃O⁺

Conjugate base: NO₃⁻

b. NH₃ + H₂O <---> NH₄⁺ + OH⁻

Bronsted-Lowry acid: H₂O

Bronsted-Lowry base: NH₃

Conjugate acid: NH₄⁺

Conjugate base: OH⁻

c. H₂SO₄ + OH⁻ <---> HSO₄⁻ + H₂O

Bronsted-Lowry acid: H₂SO₄

Bronsted-Lowry base: OH⁻

Conjugate acid: H₂O

Conjugate base: HSO₄⁻

d. C₂H₃O₂⁻ + H₂O <---> OH⁻ + HC₂H₃O₂

Bronsted-Lowry acid: H₂O

Bronsted-Lowry base: C₂H₃O₂⁻

Conjugate acid: HC₂H₃O₂⁻

Conjugate base: OH⁻

e. H₂PO₄⁻ + OH⁻ <---> HPO₄²⁻ + H₂O

Bronsted-Lowry acid: H₂PO₄⁻

Bronsted-Lowry base: OH⁻

Conjugate acid: H₂O

Conjugate base: HPO₄²⁻

f. H₂PO₄⁻ + H₃O⁺ <---> H₃PO₄ + H₂O

Bronsted-Lowry acid: H₃O⁺

Bronsted-Lowry base: H₂PO₄⁻

Conjugate acid: H₃PO₄

Conjugate base: H₂O

g. HCO₃⁻ + H₂O <---> H₃O⁺ + CO₃²⁻

Bronsted-Lowry acid: HCO₃⁻

Bronsted-Lowry base: H₂O

Conjugate acid: H₃O⁺

Conjugate base: CO₃²⁻

h. HCO₃⁻ + H₂O <---> H₂CO₃ + OH⁻

Bronsted-Lowry acid: H₂O

Bronsted-Lowry base: HCO₃⁻

Conjugate acid: H₂CO₃

Conjugate base: OH⁻

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The effective nuclear charge, denoted by the letter X, grows with period, and this is the right response to the question above.

Here, X stands for the effective nuclear charge. And it may be computed by deducting the number of core electrons from the amount of protons. The positive attraction that nuclear protons exert on valence electrons is known as the effective nuclear charge. Due to the shielding effect, the effective nuclear charge is always lower than the total amount of protons in a nucleus.

Despite the fact that nuclear charge rises as atomic number increases in both period and group. In a group and over a period, the effective nuclear charge exhibits opposing patterns. It increases along with period (due to increasing nuclear charge with no accompanying increase in shielding effect).  And decreases in group (although nuclear charge increases down a group, shielding effect more than counters its effect).

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At standard pressure and temperature (STP), the volume of nh3 gas required for the reaction to 15.0 g of NO is 7.4 L.

The definition of a standard temperature is 0 degrees Celsius, or 32 degrees F or 273.15 degrees K. In essence, this is the temperature at which pure water will freeze at sea level in air at standard pressure.

m(NO) = 15 g; mass of nitrogen(II) oxide.

M(NO) = 30 g/mol; molar mass of nitrogen(II) oxide.

V(NH₃) = ?

n(NO) = 15 g ÷ 30 g/mol.

n(NO) = 0.5 mol; amount of nitrogen(II) oxide.

From chemical reaction: n(NO) : n(NH₃) = 6 : 4.

0.5 mol : n(NH₃) = 6 : 4.

n(NH₃) = 0.33 mol; amount of ammonia.

Vm = 22.4 L/mol; molar volume at STP.

V(NH₃) = 0.33 mol · 22.4 L/mol..

V(NH₃) = 7.4 L

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The complete question is -

This balanced chemical equation represents a chemical reaction: 6NO + 4NH3 → 5N2 + 6H2O

What volume of NH3 gas, at Standard Temperature and Pressure (STP), is required to react with 15.0 g of NO?

8.999×10^-2 ppmv is the concentration of ppmv of CO.

Concentration is defined as amount of solute per amount of solution or solvent.

To convert from ppm by mass to ppm by volume, divide by the density of the particles.

The conc of CO = 103 mg/m³

=0.103 mg/m³ air

Molecular weight if CO = 28g/mol

Moles of CO = 0.103×10^-3 g/28g/mol

= 3.678×10^-6 mol

Calculate the volume of CO  as follows:

V=nRT/P

=3.678×10^-6 mol × 8.314 Pa m³/mol K × 298.15 / 101325 Pa

= 8.999×10^-8 m³ CO/m³ air

Convert units of V into pmv as follows

=8.999×10^-8 m³ CO/m³ air ×10^6

=8.999×10^-2 ppmv

Or 0.08999 ppmv

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Answer:  When a liquid becomes a solid what happens to the atoms in the solid?

The particles (atoms or molecules) are attracted to each other. The particles (atoms or molecules) vibrate but do not move past one another. The solid retains its shape.

Explanation:

The atoms in a liquid have more energy than the atoms in a solid. There is a special temperature for every substance called the melting point. When a solid reaches the temperature of its melting point, it can become a liquid. Where the Atoms vibrate but still stick together, not moving past, behind, etc of where they are.

Answer:

Products: Ethyl butanoate + Water ||| C6H12O2 + H2O

This Compound is an Ester

Explanation:

So I assume that this question is an esterification question for a few reasons.

1. Since there is a Carboxylic acid and Alcohol reacting, it automatically means that it is esterification.

2. Sulphuric Acid is used as a catalyst so it won't affect this question in any way.

* Water is formed since you'd remove H from the Alcohol's Hydroxyl group, and when you remove an OH from the carboxyl group in the carboxylic acid.

Hopefully, this helped but since I don't have much context, I had to assume that you are doing Chemistry 30, Organic Chemistry.

Answer:

Explanation:

Expert-Verified Answer. The balanced reaction that describes the reaction of chlorine gas and sodium iodide to produce elemental iodine and sodium chloride in aqueous solution is expressed Cl2+2NaI= I2 + 2NaCl.

B) Carbon Dioxide

Cellular respiration is the process by which plant and animal cells break down sugars, convert them to energy, and then use them to do work at the cellular level. The purpose of cellular respiration is simple. It provides cells with the amount of energy they need to function. It would be absolutely useless if a living being could not obtain the necessary energy from food. All living things eventually die, regardless of the quality or quantity of food.

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No, the initial concentrations affect the equilibrium concentrations of reactants and the products.

The equilibrium constant does not depend on the initial concentration of reactants but depends on concentration  of various species at equilibrium .

The equilibrium constant is the ratio between the product of the molar concentrations of the products to that of the product of the molar concentrations of the reactants with each concentration term raised to a power equal to stoichiometric coefficient in the balanced chemical equation.  

If you increase the concentration of a reactant or product participated in an equilibrium, the system will absorb some of the added material and after some time the system will re establish equilibrium. When you recalculate Keq, you get the same value.

It changes with the change in the temperature.

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The amount of heat required to raise the temperature of 225.0 g of water from 25.0°C to 100.0°C is equal to 67,837 joules.

What is temperature?
A physical quantity known as temperature expresses the concepts of hotness as well as coldness in numerical form. With a thermometer, temperature is measured. Thermometers are calibrated using a number of temperature scales which historically defined various reference points as well as thermometric substances. The most widely used scales are the Kelvin scale (K), which is primarily used for scientific purposes, the Fahrenheit scale (°F), as well as the Celsius scale (°C), formerly known as centigrade, with the unit symbol °C. In the Worldwide System of Units, one of the eight base units is the kelvin (SI).

The amount of heat, in joules, required to raise the temperature of 225.0 g of water from 25.0°C to 100.0°C can be calculated using the equation:
Q = mcΔT
where
Q = heat in joules,
m = mass of the water in grams,
c = specific heat capacity of water,
ΔT = change in temperature (100.0°C – 25.0°C = 75.0°C).

Using these values, the equation can be rearranged to:
Q = (225.0 g) (4.184 J/g°C) (75.0°C)

Therefore, the amount of heat required to raise the temperature of 225.0 g of water from 25.0°C to 100.0°C is equal to 67,837 joules.

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According to the given statement the complete dissociation of ionic compounds is C₆H₁₂O₆ < NaCl ≈ CH₃OH < MgCl₂.

A composite is a material created by the chemical fusion of two or more elements. Bonds and metallic bonding are two typical forms of bonds that hold components in a compound together. Any synthesis will always include each ingredient in a specific ratio.

The formula for osmotic pressure (Π) is

Π = icRT

If T is constant,

Π = kic

C₆H₁₂O₆:

Π

= k × 1 × 1 = k

MgCl₂:

Π

= k × 3 × 1 = 3k

CH₃OH:

Π

= k × 1 × 2 = 2k

NaCl:

Π

= k  × 2 × 1 = 2k

The order of osmotic pressures is  

C₆H₁₂O₆ < NaCl ≈ CH₃OH < MgCl₂

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The complete question is -

The following solutions are prepared by dissolving the requisite amount of solute in water to obtain the desired concentrations. Rank the solutions according to their respective osmotic pressures in decreasing order assuming the complete dissociation of ionic compounds. Rank from highest to lowest osmotic pressure. To rank items as equivalent, overlap them. 1M C6H12O6, 1M MgCl2, 2M CH3OH, 1M NaCl

The mass of the ammonia, given that the sample of the ammonia has a volume of 2.5 L is 3.965 g

First, we shall obtain the number of mole of the ammonia. Details below:

PV = nRT

Divide both sides by RT

n = PV / RT

n = (2.6 × 2.5) / (0.0821 × 260)

n = 0.305 mole

Now, we shall determine the mass of the ammonia. Details below:

Mole = mass / molar mass

Cross multiply

Mass = Mole × molar mass

Mass of ammonia = 0.305 × 13

Mass of ammonia = 3.965 g

Thus, we can conclude that the mass of the ammonia is 3.965 g

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The most efficient approaches to minimize nitrate pollution of rivers are to utilize biofertilizers instead of synthetic nitrogen fertilizers or to reduce their use altogether, in farming.

What is Nitrate pollution?

Groundwater and rivers may become contaminated with nitrogen from a variety of sources. The environment naturally contains a certain amount of nitrogen, and small amounts of nitrate are essential nutrients. However, there is an issue with the high nitrate levels found in significant anthropogenic contributions such as sewage, animal waste, nitrogen-based fertilizers, agricultural runoff, and fertilizers.

What are Biofertilizers?

A biofertilizer is a substance that contains living microorganisms that, when added to soil, seeds, or plant surfaces, colonize the plant's rhizosphere and encourage growth by boosting the supply or availability of essential nutrients to the host plants.

Hence, the most efficient approaches to minimize nitrate pollution in rivers are to utilize biofertilizers.

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Empirical formula for your substance is C3H7. I'll demonstrate a different method for calculating the amount of carbon in moles.

The simplest entire number quantity of atoms from each component is the empirical formula for the compound. It is empirically determined utilizing data from experiments. For instance, while glucose has the chemical formula C 6H 12O 6, the chemical equation is CH 2O.

Molecular formulae display the quantity of each type of atom found in a molecule, while structural formulas display the simplest whole-number relationship between the atoms in a compound. Empirical formulations display the simplest whole-number relationship between the atoms in a compound.

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The level of water in the graduated cylinder is 12.5 cm higher than the level of the water exposed to the atmosphere,  The total pressure of gases inside the graduated cylinder is 614 mmHg

given that :

The atmospheric pressure is 739 mmHg

The level of water in graduated cylinder = 12.5 cm = 125 mmHg

the expression for the pressure is given as :

P total = P atm - hρg

where , hρg = 125 mmHg

P atm = 739 mmHg

putting the values , we get :

P total = P atm - hρg

           = 739 mmHg - 125 mmHg

           = 614 mmHg

Thus, the total pressure inside the graduated cylinder is 614 mmHg.

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Answer: The frequency is 7.047 Hz. It comes under ultraviolet radiation

Explanation:

We know that v = λ x f ................. (1)

where v ⇒ velocity of the wave

f ⇒ frequency of the wave

λ ⇒ wavelength of the wave

Since we know that the given wave is electromagnetic radiation,

v = 3 x 10⁸ m/s

λ = 4.257 x 10^-9 m (Given)

Substituting in (1), we get

f = v / λ

f = 3 x 10^8 / 4.257 x 10^-9

f = 7.047 x 10^16 Hz

Since the frequency is in the order of 16, the given radiation is ultraviolet radiation

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