a. water in a 150 ml container volume with a diameter of 12 cm evaporates faster and therefore has a greater vapor pressure than a container with a volume 75 ml a diameter of 5.5 cm

To convert the benzoate salt into benzoic acid. Chemically mixing sodium hydroxide with benzoic acid produces sodium benzoate.

The sodium version of benzoic acid is sodium benzoate, often known as benzoate of soda. It is an aromatic molecule with the molecular weight of 144.11 and the chemical formula C7H5NaO2.

Exactly how is benzoic acid made?

In an industrial setting, toluene can be partially oxidized with oxygen gas to produce benzoic acid. It should be noted that this method typically uses cobalt or manganese naphthenate as a catalyst. Benz amide and benzonitrile can also be hydrolyzed to create this chemical. Baking soda, soda ash, or lye are used to combine benzoic acid with to create sodium benzoate. Because of this reaction, it becomes soluble in water (benzoic acid is not soluble in water on its own). In the United States, the first chemical preservative allowed in foods was benzoic acid or its sodium salt, benzoate. Today, it is still frequently used for a variety of cuisines.

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Cu2O and CO2 from the decomposition of cu 2co 3 (s).

The question discuss more about:

What is decomposition reaction?

When one reactant splits into two or more products, this is known as a decomposition reaction. This can be modelled by the all-inclusive formula AB = A + B. • The breakdown of water into hydrogen and oxygen and the breakdown of hydrogen peroxide are two examples of decomposition reactions.

Therefore,

What are the predicted products from the following decomposition reaction?

Cu2O and CO2 from the decomposition of cu 2co 3 (s).

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The molarity of the Ba(NO₃)₂ solution is 0.188 M

Determination of the molarity of Ba(NO₃)₂

We'll begin by calculating the amount of mole of in 3.046 g of precipitate, Ba₂SO₄

Molar mass of Ba₂SO₄ = (2×137) + 32 + (4×16) = 370 g/mol

Mass of Ba₂SO₄ = 3.046 g

Mole of Ba₂SO₄ =?

Mole = mass /molar mass

Mole of Ba₂SO₄ = 3.046 / 370

Mole of Ba₂SO₄ = 0.008 mole

Next, we shall determine the amount of mole of Ba(NO₃)₂ required to produce 0.008 mole of Ba₂SO₄

Na₂SO₄(aq) + Ba(NO₃)₂(aq) —> Ba₂SO₄(s) + 2NaNO₃(aq)

From the balanced equation above,

1 mole of Ba(NO₃)₂ reacted to supply 1 mole Ba₂SO₄.

Therefore,

0.008 mole of Ba(NO₃)₂ also will react to produce 0.008 mole of Ba₂SO₄

Thus, 0.008 mole of Ba(NO₃)₂ is required for the reaction.

Finally, we shall determine the molarity of the Ba(NO₃)₂ solution

Mole of Ba(NO₃)₂ = 0.008 mole

Volume = 42.53 mL

= 42.53 / 1000

= 0.04253 L

Molarity of Ba(NO₃)₂ =?

Molarity = mole / Volume

Molarity of Ba(NO₃)₂ = 0.008 / 0.04253

Molarity of Ba(NO₃)₂ = 0.188 M

Molarity (M) is that the amount of a substance in a certain volume of solution. Molarity is defined because the moles of a solute per liters of a solution. Molarity is additionally known as the molar concentration of a solution

Molarity is how chemists measure the concentration of an answer , allowing them to relate concentrations to at least one another when calculating chemical reactions and working with chemical solutions. a degree is what chemists use to refer to the amount of substance dissolved into a given amount of solution

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The volume of acetone in milliliters is 0.016 mL.

Properties of acetone, also known as 2-propanone, dimethyl ketone, and pyroacetic acid, in terms of chemistry, physics, and temperature. Included is a phase diagram. Acetone (2-propanone), also known as CH 3-CO-CH 3, is a colorless, clear liquid with a distinctively fruity and sweet scent. The fumes are heavier than air and it is combustible.

Given that;

density =  0.7899 g/mL

mass = 49.2g

Volume =?

applying formula

[tex]Density = \frac{mass}{ volume}[/tex]

[tex]Mass=\frac{ density}{volume}[/tex]

        = [tex]\frac{ 0.7899 g/mL}{49.2 g}[/tex]

        =0.016 mL

The volume of acetone in milliliters is 0.016 mL

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22559040 J energy is produced by a 14-hp motor deliver in 36 minutes

What is power and horsepower?

Power is defined as rate of work done which means it is work done in 1 second of time

One horsepower (1 hp) is the unit of power based on the work that a horse can do in one second

Given,

1 horsepower = 746 w

P = 14 hp = 746*`14=10444 W

W = Pt = 10444 × 36 × 60 J = 22559040 J

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Answer:

fungi

Yeasts are eukaryotic organisms that are included in a group of organisms called “fungi,” which also includes molds and mushrooms. Yeasts can have both positive and negative effects on fermented products consumed by humans and animals.

Explanation:

Answer:  Fungi

Explanation:

Yeasts are eukaryotic organisms that are included in a group of organisms called “fungi,” which also includes molds and mushrooms. Yeasts can have both positive and negative effects on fermented products consumed by humans and animals.

One possible drawback to moist-heat cookery is that  a.color b.flavor c.vitamins d.minerals may leach out and be lost in the liquid.

The cost of generating more neutron-rich nuclear systems is measured by the nuclear symmetry energy. According to the system's density. The mechanics of supernova explosions, the characteristics of neutron stars, and the gravitational waves produced by their mergers are all greatly affected by knowledge of the density dependence of nuclear symmetry energy. Understanding the kinetics and outcomes of their collisions in laboratory studies, as well as the characteristics of nuclei, is crucial.

Within the parabolic approximation, the Equation of State (EOS) of homogeneous neutron-rich nucleonic matter with isospin asymmetry = (np)/ and density can be stated in terms of the energy per nucleon E(n, n).

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Answer:    Water molecules make hydrogen bonds

Explanation:            The hydrogen bonds in water exclude the nonpolar tails of phospholipids, forcing the molecules into a bilayer

Answer:

Water molecules make hydrogen bonds

Explanation:

This happens when the hydrogen bonds in water exclude the nonpolar tails of phospholipids, forcing the molecules into a bilayer.

Answer:

he number of chemically non-equivalent hydrogens is 6.

Answer:

C

Explanation:

Ice is water in its solid form

the ice melted a bit into water

water is a liquid

The states of matter which are pictured in the image below are solid and liquid.

Matter in chemistry, is defined as any kind of substance that has mass and occupies space that means it has volume .Matter is composed up of atoms which may or not be of same type.

Atoms are further made up of sub atomic particles which are the  sub atomic particles protons ,neutrons and the electrons .The matter can exist in various states such as solids, liquids and gases depending on the conditions of temperature and pressure.

The states of matter are inter convertible into each other by changing the parameters of temperature and pressure.Matter is always conserved according to law of conservation of matter and is never created nor destroyed and is always conserved.

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Answer: 3.002 ==> C

Explanation:

3.00183 =

3.00183 =3.002 => since 8 is closer to 10 than to 0, add 1 to the 1 in 3.00183

3.002 ==> C

The correct alternatives of the blanks are -

Blank 1 - Gases.

Blank 2 - Liquid.

We have a statement regarding the supercritical fluid.

We have to fill in the blanks with correct alternatives.

A supercritical fluid is any substance at a temperature and pressure above its critical point, where distinct liquid and gas phases do not exist.

According to the question -

The complete statement regarding the supercritical fluid is as follows -

A supercritical fluid can expand like a gases to fill a container and has a density similar to that of a liquid so can behave as a solvent.

Hence, the correct alternatives of the blanks are -

Blank 1 - Gases.

Blank 2 - Liquid.

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6HBr+2Al → 2AlBr3+3H2

now, as the reaction is showing

6 moles of  HBr  reactes with 2 moles of Aluminium gives us 2 moles of Aluminium bromide and 3 moles of hydrogen gas

as the question says  10g of HBr reacted with 5g of Al.

(i) mass of Aluminium bromide produced.

moles = given mass/molecular mass

moles =  5g/54g

moles 0.0925 mole

(ii) number of bromide ions formed

6 moles of bromide ions formed in this reaction

now 1 moles = 6.022×10^23

6 moles = 6 ×6.022×10^23

= 36.132×10^23ions

(iii) percentage yield if 0.55 g of aluminum bromide is actually yielded

percentage yield= moles×100

percentage yield= 0.55×100÷107

percentage yield=0.514%

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Nicole can access global markets through distributors while avoiding logistical problems and several trade-related concerns. Specialty shops tend to be more expensive and have less choice. at last, Nicole will pay more for the mattress if she gets it at the specialty store.

The simplicity of employing a distributor is its key benefit. Typically, the distributor is in charge of the packaging, shipping, and associated paperwork for customs. The concentrate on a specific class of products that a specialty store has is one of its main advantages. This offers business owners and staff the ability to gain knowledge and a reputation for selection and competence within the store's designated specialization.

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The most negative electron affinity is most likely associated with small nonmetal atoms.

Electron affinity is the amount of energy released when an electron is added to an isolated gaseous atom.

When the first electron is added to a neutral atom, the electron affinity is positive. However, when a second electron is added to an anion, the electron affinity becomes positive due to the repulsion of electrons.

The electron affinity of non-metals is greater than metals because non-metals gain electrons whereas metals accept an electron. Due to this, electron affinity increases from left to right in a period.

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The formula weight is 237.9 g/mols the molarity of 125 g cobalt chloride dissolved in a final volume of 300 ml.

The word "molar concentration" refers to the amount of a substance per unit volume of solution and is used to describe the concentration of a chemical species, specifically a solute, in a solution. Molarity, amount, and substance concentration are other names for this term. The number of moles per liter, denoted by the unit symbol mol/L or mol/dm3 in SI units, is the molarity unit that is most frequently used in chemistry. The term "molar," often known as "1 M," refers to a solution with a concentration of 1 mol/L.

As a result of thermal expansion, the volume of most solutions varies slightly with temperature in thermodynamics, making it difficult to employ molar concentration. The typical solution to this issue is to use a temperature-independent metric or to introduce temperature correction variables.

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Molecular size: Molecules that are heavier than others move more slowly.

Temperature: The energy in the medium changes depending on whether the temperature is rising or falling, which has an impact on molecular movement.

Density: The harder it is for molecules to travel through a solution, the slower diffusion will be owing to density.

Distance: Diffusion is unable to transport nutrients and waste products efficiently enough to support life if the distance these substances must travel is too great.

What is diffusion?

Diffusion is the term for the net movement of anything, often from a location of higher concentration to one of lower concentration. A gradient in the chemical potential or Gibbs free energy is what drives diffusion.

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The quantity of heat released when when 15.7 g of benzene in the liquid phase at 50.0 °c is converted to solid benzene at 2.0 °c. molar mass of benzene is 11.37708 KJ.

Energy = nCp,liquid(T,bp - T₁) + nΔH + nCp,gas(T₂ - T,bp)

where

n is the number of moles

T,bp is the boiling point of benzene at 80.1°C

Cp,liquid = 134.8 J/mol·°C

Cp,gas = 82.44 J/mol·°C

ΔH = 87.1 J/mol

Energy = (3.12 moles)(134.8 J/mol·°C)(80.1°C - 75.1°C) + (3.12 moles)(87.1 J/mol) + (3.12 moles)(82.44 J/mol·°C)(115.1°C - 80.1°C)

Energy = 11,377.08 J

It smells pleasant and is quite combustible. Benzene swiftly disappears into the atmosphere. Its vapor can descend into low-lying locations since it is heavier than air. Benzene floats on top of water and barely slightly dissolves in it.

One of the fundamental petrochemicals, benzoene is a component of crude oil that occurs naturally. Benzene is categorized as an aromatic hydrocarbon because of the cyclic continuous pi bonds that exist between the carbon atoms. PhH is a common abbreviation. The stench near gas stations is partly caused by benzene, a colorless, extremely combustible chemical that has a sweet scent.

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The concentration in molarity is 0.135 mol/L.

In terms of the amount of material per unit volume of solution, molar concentration is a measurement of the concentration of a chemical species, specifically a solute in a solution.

10 grams of K₃ PO₄ is dissolved in H₂O. to give 350 ml of solution.

The molar mass of K₃ PO₄ is 212.3 g/mol

The molarity is given as:

[tex]Molarity = \frac{moles{~}of{~}solute}{liters{~}of{~}solution}[/tex]

Now,

Moles of K₃ PO₄ = 10 grams K₃ PO₄ × 1 mol K₃ PO₄ / 212.3 = 0.047 mol K₃ PO₄

Liters of solution = 350 ml × 1 L / 1000 ml = 0.35 L

Now,

[tex]Molarity = \frac{moles{~}of{~}solute}{liters{~}of{~}solution}[/tex]

Molarity = 0.047 / 0.35

Molarity = 0.13458 mol/L

Molarity = 0.135 mol / L

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Energy gets  from motion is called kinetic energy and  energy due to  position is called potential energy.

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Amphiprotic compounds are able to both donate and accept a proton.

Amphiprotic compounds contain a hydrogen atom and lone pair of valence electron.

For example, HSO₃⁻ (hydrogen sulfate ion) is an amphiprotic compound.

Balanced chemical equation for reaction when HSO₃⁻ donate protons to water:

HSO₃⁻(aq) + H₂O(l) ⇄ SO₄²⁻(aq) + H₃O⁺(aq).

Ka = [SO₄²⁻] · [H₃O⁺] / [HSO₃⁻]

Balanced chemical equation for reaction when HSO₃⁻ accepts protons from water:

HSO₃⁻(aq) + H₂O(l) ⇄ H₂SO₄(aq) + OH⁻(aq).

Kb = [H₂SO₄] · [OH⁻] / [HSO₃⁻]

Water (H₂O), amino acids, hydrogen carbonate ions (HCO₃⁻) are examples of amphiprotic species.

Another example, water is an amphiprotic substance:

H₂O + HCl → H₃O⁺ + Cl⁻

H₂O + NH₃ → NH₄⁺ + OH⁻

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Answer: sodium ethanoate

Explanation: I hope this is correct

Taking into account the definition of wavelength, frecuency and propagation speed, the frequency of the wave is 4.9967×10¹⁴ m.

Wavelength is the minimum distance between two successive points on the wave that are in the same state of vibration. It is expressed in units of length (m).

Frequency is the number of vibrations that occur in a unit of time. Its unit is s⁻¹ or hertz (Hz).

The propagation speed is the speed with which the wave propagates in the medium.

The propagation speed relate the wavelength (λ) and the frequency (f) inversely proportional using the following expression:

v = f×λ

All electromagnetic waves propagate in a vacuum at a constant speed of 2,998×10⁸ m/s, the speed of light.

In this case, you know:

Replacing in the definition of propagation speed:

2,998×10⁸ m/s= f× 6×10⁻⁷ m

Solving:

f= 2,998×10⁸ m/s ÷ 6×10⁻⁷ m

f= 4.9967×10¹⁴ m

In summary, the frequency of the wave is 4.9967×10¹⁴ m.

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The change in the moles of the substance in the tank, Na = 10 if it contains solution in which na0 moles of a substance are dissolved.

The chemical compound sodium oxide has the formula Na2O. Glasses and ceramics both use it. Although the compound is rarely found, it is a white solid.

An alkali metal oxide with the chemical formula Na2O is sodium oxide. It is sodium hydroxide in its anhydride state.

In the air, sodium burns with a brilliant, white light.

dNa / dt = Ca/o Qo*t - qot / v Na

⇒ dNa/dt + qo t / v Na = Ca/o Qo t → 1

The integrating factor is e ∫ (Qo t) /v dt

= e (Qo t^2) / 2v

Multiplying 1 by IF we get,

e^(qo t^2/2v) [dNa/dt + Qo t/2v Na] = (Ca/o)*Qo*t*e^(Qo t^2 / 2v)

d/dt (Na e^(Qot^2/2v) = (Ca/o)*Qo*t*e^(Qo t^2 / 2v)

On integrating,

Na* e^(Qot^2/2v) = Ca/o Qo ∫t e^(Qo t^2 / 2v) dt

= v (Ca/o) ∫[Qo*t /v] e^(Qo t^2 / 2v) dt

= v (Ca/o) e^(Qo t^2 / 2v) + k

Na = v(Ca/o) + K e^(Qo t^2 / 2v)

At t = 0,

Na = Nao

⇒Nao = V*Ca/o +k

⇒k = Nao - V Ca/o

At Ca/o = 5, V = 2, Qo = 1, V=2, Nao = 10

we get

Na = 10

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According to the research, Intrinsic properties are specific properties being more useful than extrinsic properties since they allow substances to be identified and differentiated.

They are essential qualities of a material and that characterize each of the substances, being independent of the size of a sample or the amount of matter present, contrary to the extrinsic properties that are affected by external factors.

In this sense, said properties are inherent qualities of the type and form of matter, which depend mainly on the chemical composition and structure.

Therefore, we can conclude that according to the research, the correct option is intrinsic properties are specific properties being more useful than extrinsic properties since they allow substances to be identified and differentiated.

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If gas molecules in an enclosed chamber are allowed to enter a second chamber, the resulting redistribution of gas molecules represents an increase in entropy.

Entropy is defined as the measure of a system's thermal energy or te amount of energy which is unavailable to do work.

The entropy is known to increase because of the pressure or concentration is reduced. Entropy of gases are much larger than the condensed phases.

Entropy is the measure of the randomness or disorder of the system.

When the gas molecules were in an enclosed chamber, they were at a constant temperature and molecules did not slow down but when they were allowed to enter a second chamber, they had more place in container where they were in disorder, which resulted in redistribution of gas molecules, increasing the entropy of gas due to its expansion.

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