1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Zina [86]
4 years ago
9

The hydrogen gas formed in a chemical reaction is collected over water at 30.0 ∘c at a total pressure of 734 mmhg . part a what

is the partial pressure of the hydrogen gas collected in this way?
Chemistry
2 answers:
Novay_Z [31]4 years ago
7 0

Answer: 702.2 mmHg

Explanation: According to Dalton's law of partial pressure, the total pressure is the sum of partial pressures of individual components.

P=pH_2O+pH_2

P=total pressure

pH_2O= partial pressure of water

pH_2 = partial pressure of hydrogen

partial pressure of H_2O at 30°C is 31.8 mmHg

734 mmHg = 31.8 mmHg + pH_2

pH_2 = 702.2 mmHg



In-s [12.5K]4 years ago
6 0

At a temperature of 30 deg C, the vapour pressure of water H2O is about 32 mm Hg. Therefore at a total pressure f 734 mm Hg, the partial pressure of the Hydrogen gas collected is:

<span>P Hydrogen = 734 mm Hg – 32 mm Hg = 702 mm Hg</span>

You might be interested in
Heyy guys, so basically i need help with stoichiometric calculation I will give you 100 points just to answer all of these answe
jeka94

Answer:

3. The mass of ethanol required is approximately 0.522869 g

The mass of ethanoic acid required is approximately 0.68156 g

4. The mass of iron (III) oxide required is approximately 285.952.189.095 tonnes

5. The mass of silver nitrate required is approximately 14.53 grams

6. The mass of copper oxide that would be needed is approximately 31.86 grams

7. a. The mass of the precipitate, Zn(OH)₂ formed is approximately 49.712 grams

b. The mass of the precipitate, Al(OH)₃ formed is approximately 13 grams

c. The mass of the precipitate, Mg(OH)₂, formed is approximately 14.579925 grams

Explanation:

3. The 1 mole of ethanol and 1 mole of ethanoic acid combines to form 1 mole of ethyl ethanoate

The number of moles of ethyl ethanoate in 1 gram of ethyl ethanoate, n = 1 g/(88.11 g/mol) = 1/88.11 moles

∴ The number of moles of ethanol = 1/88.11 moles

The number of moles of ethanoic acid = 1/88.11 moles

The mass of ethanol = (46.07 g/mol) × 1/88.11 moles = 0.522869 g

The mass of ethanoic acid in the reaction = 60.052 g/mol × 1/88.11 moles ≈ 0.68156 g

4. 1 mole of iron(III) oxide reacts with 1 mole of CO₂ to produce 1 mole of iron

The number of moles in 100 tonnes of iron= 100000000/55.845 = 1790670.60614 moles

The mass of iron (III) oxide required = 159.69 × 1790670.60614 = 285952189.095 g ≈ 285.952.189.095 tonnes

5. The number of moles of NaCl in 5 grams of NaCl = 5 g/58.44 g/mol = 0.0855578371 moles

The mass of silver nitrate required, m = 169.87 g/mol × 0.0855578371 moles ≈ 14.53 grams

6. The number of moles of CuSO₄·5H₂O in 100 g of CuSO₄·5H₂O = 100 g/(249.69 g/mol) ≈ 0.4005 moles

The mass of copper oxide required, m = 79.545 g/mol × 0.4005 moles ≈ 31.86 grams

7. a. The number of moles of NaOH in the reaction = 20 g/(39.997 g/mol) ≈ 0.5 moles

2 moles of NaOH produces 1 mole of Zn(OH)₂

0.5 moles of NaOH will produce 0.5 mole of Zn(OH)₂

The mass of 0.5 mole of Zn(OH)₂ = 0.5 mole × 99.424 g/mol = 49.712 grams

The mass of the precipitate, Zn(OH)₂ formed = 49.712 grams

b. 6 moles of NaOH produces 2 moles Al(OH)₃

20 g, or 0.5 mole of NaOH will produce (1/6) mole of Al(OH)₃

The mass of the precipitate, Al(OH)₃ formed, m = 78 g/mol×(1/6) moles = 13 grams

c. 2 moles of NaOH produces 1 mole of Mg(OH)₂, therefore;

20 g or 0.5 moles of NaOH formed (1/4) mole of Mg(OH)₂

The mass of the precipitate, Mg(OH)₂, formed, m = 58.3197 g/mol × (1/4) moles = 14.579925 grams

3 0
3 years ago
Read 2 more answers
Which we events will happen if more H, and t, are added to this reaction
Pani-rosa [81]

Answer:

its is letter c is your answer

Explanation:

I hope this help

5 0
3 years ago
Which atmospheric gas protects living things on Earth from gamma rays
slega [8]
I think the answer is  B . I really hope that this helps you out.
4 0
3 years ago
Read 2 more answers
Which statements correctly describe the process of nuclear fusion?
Keith_Richards [23]

It bonds atoms together to create molecules

4 0
3 years ago
Read 2 more answers
What does it mean if Keq &lt;&lt; 1?
Aloiza [94]

There are more reactants than the products

Explanation:

For any system in equilibrium, the molar concentration of all the species on the right hand side is related to the molar concentrations of those at the left hand side by a constant known as the equilibrium constant (K_{eq}).

The constant is temperature dependent.

  • When the equilibrium constant is less than 1, it implies that there are more reactants than the products.
  • If the constant is equal to 1, the products and reactants are the same.
  • If the constant is greater than 1, the products are more than the reactants.

Learn more:

equilibrium constant brainly.com/question/11080417

#learnwithBrainly

6 0
3 years ago
Other questions:
  • On the account of the physical state of a solute and solvent, solutions can be said to be of _______. Types.
    14·1 answer
  • The specific heat of gold is 0.031 calories/gram°C. If 10.0 grams of gold were heated and the temperature of the sample changed
    15·2 answers
  • All the elements of a family in the periodic table have what feature in common? A) They all have similar chemical properties. B)
    7·2 answers
  • Calculate [H3O+] and [OH−] for each of the following solutions at 25 ∘C given the pH. pH= 8.74, pH= 11.38, pH= 2.81
    9·1 answer
  • Each of the three known isotopes of hydrogen has blank protons in the nucleus
    15·1 answer
  • The goal of this lesson:
    15·1 answer
  • Kc= [3.1*10^-2]^2. (mol/L^2) divide by [8.5*10^-1] [3.1*10^-3]^3 (mol/L)^4​
    15·1 answer
  • What type of chemical reaction takes place in this process explain in proper detail.​
    7·2 answers
  • (03.05 LC)
    12·1 answer
  • PLEASE I NEED HELP I WILL GIVE YOU BRAINLIST
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!