In electrolysis of sodium chloride, hydrogen and chlorine are liberated from the aqueous sodium chloride solution. Both the gases are transferred into a container which is maintained at 4 atm and 30 ℃. Calculate the volume of the container if 100 mol of H2 and 100 mol of Cl2 are transferred

Answers

Answer 1

Answer:

1.2 × 10³ L

Explanation:

Step 1: Calculate the total number of gaseous moles

n = nH₂ + nCl₂ = 100 mol + 100 mol = 200 mol

Step 2: Convert 30 °C to Kelvin

We will use the following expression.

K = °C + 273.15 = 30 + 273.15 = 303 K

Step 3: Calculate the volume of the container

We will use the ideal gas equation.

P × V = n × R × T

V = n × R × T / P

V = 200 mol × (0.0821 atm.L/mol.K) × 303 K / 4 atm = 1.2 × 10³ L


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using chemical equations, show the different stages of fermentation
please I need help urgently!!! ​

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Answer:

in the fermentati0n process glucose [C6H12O6]c of food is converted into ethanol [ethyl alchol, C2H5OH] and Co2 by yeast cell .In this process yeast cell produce in vertase and zymase enzyme which convert glucose into alcohol .

i.e. c6H12O6========> C2H5OH+Co2+energy

difference between peak, orbit and orbital​

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Answer:

An orbit is a fixed path on which electrons revolve around the nucleus. An orbital is the probable area of finding the maximum density of electrons in an atom. An orbit is a planar representation, i.e., a two dimensional representation.

The diameter of neutral atoms generally decreases going left to right across one period on the periodic table. What change causes this decrease in diameter of atoms?

Answers

Explanation:

Atomic size gradually decreases from left to right across the periodic table because within a period of elements, all electrons are added to the same shell. However, at the same time, protons are being added to the nucleus, making it more positively charged. The effect of increasing proton number is greater than that of the increasing electron number. Therefore, there is a stronger nuclear attraction. This means that the nucleus attracts the electrons more strongly, pulling the atom's electron shells closer to the nucleus. As a result, the atomic diameter of the atom decreases.

Which of the following substances can be used to neutralize HF? Question 6 options: A) NaOH B) HF C) HCl D) SO2

Answers

Answer:

A) NaOH

got it right on the test.

Explanation:

Answer:

NaOH  

Explanation:

the first attempt to classify the elements was made by newlands true or false​

Answers

Answer:

True. An English scientist by the name of John Newlands tried to classify the elements in a unique manner. He first started by arranging all the elements in a ascending order according to their atomic weights.

Which atom would be neutral?

1an oxygen atom with 16 electrons, 18 protons, and 16 neutrons

2an oxygen atom with 4 electrons, 6 protons, and 4 neutrons

3an oxygen atom with 9 electrons, 8 protons, and 8 neutron

4an oxygen atom with 8 electrons, 8 protons, and 9 neutrons

Answers

Answer:

an oxygen atom with 8 electrons, 8 protons, and 9 neutrons

Explanation:

A proton has a positive charge and an electron has a negative charge. Magnitude of both of these charges is same. So, we need the same number of electrons and protons to make the atom neutral.

Neutron is neutral, so we can safely ignore it in this question.

Answer:

an oxygen atom with 8 electrons, 8 protons, and 9 neutrons

Explanation:

(NEED HELP IMMEDIATELY) In a gene, which base sequence codes for two amino acids?
1. CTAA
2. AG
3. GAGCTC
4. GAA

Answers

Answer:

[tex]\boxed {\boxed {\sf 3. \ GAGCTC}}[/tex]

Explanation:

Amino acids are the monomers or building blocks of protein. Proteins are created during protein synthesis according to the genetic information or DNA in an organism.

The DNA is translated to messenger RNA in the nucleus. It travels to the ribosome. There, the mRNA is "read off" in threes. Three nucleotides make up  a codon. Transfer RNA with the corresponding anticodon and an amino acid attaches to the codon and a chain of amino acid forms.

If 3 nucleotides make 1 codon which makes 1 amino acid, then we need double that or 6 nucleotides to make 2 amino acids.

The only answer choice with 6 nucleotides is Choice 3: GAGCTC

el magnesio (z=12) tiene tres isotopos 24mg, 25mg, 26mg. calcula la masa atómica promedio del magnesio

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Answer:

k pleased with t shirt with the scab the formation the underlined the formation

The boiling point of water is 100ºC. The boiling point of acetone is 56ºC. Which statement about distilling a mixture of acetone and water is correct?

Acetone remains in the original container.

Water will vaporize from the mixture before acetone.

Acetone is captured and cooled.

Water is collected as it leaves the mixture.

Answers

Answer:

Acetone is captured and cooled.

Explanation:

The boiling point of acetone is lower than that of water, so it will vaporise before water. Then acetone will be captured and cooled to separate it from its mixture with water.

The statement which is correct about distilling a mixture of acetone and water is as follows:

Acetone is captured and cooled.

Thus, the correct option is C.

What is Distillation?

Distillation may be defined as a procedure that generally involves the conversion of a liquid into a vapor that is eventually condensed back to liquid form. With the help of this process, the separation of components or substances from a liquid mixture by using selective boiling and condensation occurs.

Acetone has the lowest boiling point as compared to water. So, it boils faster than that water and vaporizes before water. After the termination of this process, the acetone will be predominantly captured and cooled to separate it from its mixture with water.

Therefore, the correct option for this question is C.

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Water has __________ than other liquids such as ethanol , reflecting its capacity to absorb large amounts of heat. View Available Hint(s)for Part A lower specific heat a lower heat of vaporization a higher boiling point a lower capacity for forming hydrogen bonds less surface tension

Answers

Answer:

a high boiling point

Explanation:

Water has a high boiling point because it is held together by stronger molecular forces compared to ethanol

can anyone help me w this ? ​

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Answer:

28g of He =7 mol0.5 mole of O2=16gmolecular mass of common salt =58.541.5 mole of Ca=60g

URGENT PLEASE ELPP!!!Calculate the density of a piece of metal that has a mass of 2.5 × 102 kg and a volume of 4.1 × 103 m3.

Answers

Answer:

Density =mass/Volume

First of all let's find the mass

= 2.5 ×102kg

= 225kg

Then the volume

=4.1 × 103 m3

=422.3m3

225kg /422.3m3

=0.53279659

The density of a piece of metal that has a mass of 2.5 × 102 kg and a volume of 4.1 × 103 m3  will be 6.03  kg/m³ .

What do you mean by  the density of a substance ?

Density is defined as the ratio of mass of the object to the volume of the object. Different substances have different densities.

The mathematical expression for density is as follows:

Density=Mass/Volume

The mass of a substance is expressed in kilograms and the volume is expressed in liter.

Thus, the unit of density is kg L⁻¹.

The density of a substance does not depend on the amount of the matter.

Thus, density is an intensive property.

To calculate  the density -:

Given,

Mass= 2.5 ×102 kg=2550 kg

Volume=4.1 × 103 m³=422.3m³

Density=mass/volume

Density=2550/422.3

Density=6.03kg/m³

Hence, 6.03kg/m³ is the  density of a piece of metal .

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How is kilo gram is related to gram​

Answers

Answer:

i know you think that they are just related because kg has kilo but they are related because

Explanation:

1000g makes 1 g.You see how much there is a difference in the solution because how is one=one thousand,well that is all i can help you from here.bye panta

Answer:

1 g=1000kg

Explanation:

They are related in mathematical way

What type of reaction is shown below:

Ethanoic acid + propanol -> propyl ethanoate + water
A. Polymerization
B. Addition (water)
C. Elimination
D. Esterification

Answers

Answer:

c

Explanation:

because mix with propanol

the solubility of sugar is 250 at 60° what does it mean​. please helpp anyone please help​

Answers

I don't know I am having the same problem

If ya could change somethin bout ya previous science classes what would it be?

Answers

If I could change something in my previous science classes, it would have been the fact that I struggled in the question concerning exponents. It was simple one, but I don't know how I didn't understood that. For example, if there is a question with a calculation "xy²", then I would first multiply x and y, and then calculate the exponent. I did 3 of the questions wrong because of this, it was when I was in 7th grade. I wish I had not done this kind of silly mistake. I an in 10th grade and understand it well now, though.

what are the 2 main methods of combination of elements??​

Answers

Answer:

to make them react to each other to form a compound

Explanation:

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Answer:

An element is a material that consists of a single type of atom. Each atom type contains the same number of protons. Chemical bonds link elements together to form more complex molecules called compounds. A compound consists of two or more types of elements held together by covalent or ionic bonds.

What can cause water to change to a different state or phase?
A. a change of volume
B. a change in temperature

Answers

B change in temperature

Please help with the Volume one

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Answer:

im a just achild

Explanation:

Answer:

c

Explanation:

0.5dm³

follow me if you want

which orbital has the lowest energy

Answers

Answer:

s orbital

Explanation:

it has the lowest energy because

Paulis law state that orbitals with lower energy must be fill first before that of higher energy

and the s orbital is filled first

Describe how to make a buffer solution using a strong base and one other reagent. 15 POINTSSSSSSSS

Answers

Answer:

Hi! hopefully this helps you

Explanation:

You can make a buffer solution for a specific pH (potential of hydrogen) by mixing together a weak acid like acetic acid HC2H3O2 with a salt that contains the conjugate base like sodium acetate NaC2H3O2. A neutralization reaction would occur as you are mixing a weak acid and a strong base.

When you add the base to an acidic solution, the solution becomes less acidic and moves toward the middle of the pH scale. Aka neutralization

Hope this helps! best of luck <3

potassium permanganate + water = ? which product will they form,and in which phase is it?​

Answers

KMnO4 + H2O = MnO2 + O2 + KOH

Must click thanks and mark brainliest

Products formed when chlorine is produced by the electrolysis of concentrated sodium chloride solution

Answers

The products formed during electrolysis of concentrated sodium chloride solution are SODIUM HYDROXIDE and HYDROGEN GAS.

ELECTROLYSIS is the process by which electrolytes allows electric current to pass through it and is decomposed on the process.

CHLORINE is an element which can be produced industrially through the process of electrolysis of brine (concentrated sodium chloride solution). When sodium chloride is dissolved in water, it's ions separate and are capable of conducting electricity.

The products formed during this process includes:

chlorine sodium hydroxide and hydrogen gas.

CHLORINE: this is released at the positive electrode during electrolysis. It is used for the following purposes:

 it is used for sterilisation of water for domestic and industrial use  it is used as a bleaching agent for cotton, linen and wood-pulp.

SODIUM HYDROXIDE: this remains in the solution during electrolysis. It is used for the following:

processing food products, removing pollutants from water and manufacture of paper.

HYDROGEN GAS:this is released at the negative electrode during electrolysis. this is used for the following:

manufacture of ammonia, hydrochloric acid and methanol it serves as constituents of many gaseous fuels such as water gas and coal gas

Therefore other products during electrolysis of concentrated sodium chloride solution are SODIUM HYDROXIDE and HYDROGEN GAS.

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Which of the following pairs lists a substance that can neutralize HNO3 and the salt that would be produced from the reaction?
O BaOH2 and Ba(NO3)3
O KOH and K2NO3
O NH3 and NH4NO3
O NH4 and NHA(NO3)2

Answers

Answer:

NH3 and NH4NO3

Explanation:

I took the test and guessed this since I couldn't find it here, it turned out to be correct so I thought I'd share.

The substances that can react with HNO3 to neutralize it  are NH3 and NH4NO3.

What is neutralization?

The term neutralization has to do with the reaction between an acid and a base to yiled salt and water only.

The substances that can react with HNO3 must be basic substances hence the substances required are NH3 and NH4NO3.

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help me please I will mark as brainliest for the first correct answer ​

Answers

Answer:

1. 3-methylpentane

2. 2-bromo-3-chloropentane

3. 2,2,4-trimethylpentane

Explanation:

1. CH3CH2CH(CH3)CH2CH3.

Methyl group is in the third carbon atom in the long chain. The organic compound has five(5) carbon atoms thus it is named as pentane.

Therefore the name of the compound is

3-methylpentane

2. CH3CH(Br)CH(Cl)CH2CH3

The compound has Chlorine and Bromine in the carbon chain. Chlorine is given as chloro-, Bromine is given as bromo, depending on the position in the carbon chain. Bromine is located in 2 carbon atom and chlorine is in third(3) carbon atom in the long chain. The long chain has five carbon atoms thus pentane.

Naming of the compound we begin with the on lowest in the alphabet. The name of the organic compound is therefore;

2-bromo-3-chloropentane

3. CH3CH(CH3)3CH(CH3)CH2CH3

In this long chained organic compound, methyl-group is found in 2,2 and 4th positions. Since this is still pentane, naming the organic compounds, we start with the one with the lowest carbon. Therefore this becomes;

2,2,4-trimethylpentane

I hope this helps you to know how to name the organic compounds.

What is the chemical formula of Sulphuric Acid:-

Answers

Answer:

sulphuric acid's formula is H²SO⁴

Explanation:

HOPE U WILL FOLLOW

HELP URGENT PLS!1!! In what direction and how many spaces must you move the decimal point to make the following conversion?

600 L to mL


left; 6 spaces
left; 6 spaces

left; 3 spaces
left; 3 spaces

right; 6 spaces
right; 6 spaces

right; 3 spaces

Answers

To convert from L to ml, we move three spaces to the right and the decimal place moves three places.

Our task here is to convert 600 L to mL. we have to remember that to convert from L to ml, we have to multiply the value in L by 1000

In other words, the value 1000 is known as the conversion factor.

When we do this, we move the decimal place three places to the right to have 600000.00mL

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Which is more acidic among the following?​

Answers

Answer:

C

Explanation:

A substance is a solid at room temperature, melts easily, conducts electricity weakly, and dissolves well in water and alcohol. What type of bonds does it have?

Answers

Answer:

Iconic bond

Explanation:

A form of chemical bond that included electrostatic attraction in the oppositely charged ions. It is one of the main types of bonding along with the covalent and metallic bonding. The substance is crystalline in nature since it melts easily and is solid at room temperature.

Show the comparative structure of union Parishad and Pourahava in chart.

Answers

Answer:

how will I show?

Explanation:

pLS teacher me

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