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
Vlada [557]
3 years ago
9

A sample of nitrogen gas is collected over water at temperature of 20.0˚C. What is the pressure of the nitrogen gas if atmospher

ic pressure is 1.01atm? (vapor pressure of water at 20.0˚C is 17.5 torr)
Chemistry
1 answer:
Levart [38]3 years ago
4 0

Answer:

P_N=0.987atm

Explanation:

Hello there!

In this case, for these problems about collecting a gas over water, we must keep in mind that once the gas has been collected, the total pressure of the system is given by the atmospheric pressure, in this case 1.01 atm. Next, since we also have water in the mixture, we can write the following equation:

P_T=P_w+P_N

Thus, by solving for the pressure of nitrogen and using consistent units, we obtain:

1.01atm=17.5torr*\frac{1atm}{760torr} +P_N\\\\P_N=1.01atm-0.023atm\\\\P_N=0.987atm

You might be interested in
What happens on a molecular level when a diatomic molecule is a gas but is then cooled to a solid?
irina1246 [14]

Answer:

As an example of the processes depicted in this figure, consider a sample of water. When gaseous water is cooled sufficiently, the attractions between H2O molecules will be capable of holding them together when they come into contact with each other; the gas condenses, forming liquid H2O. For example, liquid water forms on the outside of a cold glass as the water vapor in the air is cooled by the cold glass.

Explanation:

Hopefully that helps!

4 0
2 years ago
Cu2 -> Cu2+ is it getting oxidized?
KIM [24]

Answer:

Explanation:

Cu²⁺ + 2e⁻  →  Cu   ( copper gets reduced )

Cu  → Cu²⁺ + 2e⁻ (  copper gets oxidized )

Oxidation:

Oxidation involve the removal of electrons and oxidation state of atom of an element is increased.

Reduction:

Reduction involve the gain of electron and oxidation number is decreased.

Consider the following reactions.

4KI + 2CuCl₂  →   2CuI  + I₂  + 4KCl

the oxidation state of copper is changed from +2 to +1 so copper get reduced.

CO + H₂O   →  CO₂ + H₂

the oxidation state of carbon is +2 on reactant  side and on product side it becomes  +4 so carbon get oxidized.

Na₂CO₃ + H₃PO₄  →  Na₂HPO₄ + CO₂ + H₂O

The oxidation state of carbon on reactant side is +4. while on product side is  also +4 so it neither oxidized nor reduced.

H₂S + 2NaOH → Na₂S + 2H₂O

The oxidation sate of sulfur is -2 on reactant side and in product side it is also -2 so it neither oxidized nor reduced.

7 0
3 years ago
How do I calculate the sum of 6.078 g and 0.3329 g ?
Vesnalui [34]
The answer is 6.4109 grams
8 0
3 years ago
A scientist did an experiment using a chemical inhibitor that stops photosynthesis for a certain type of plant. He grew two plan
Sauron [17]
B. The inhibitor wouldn’t stop sunlight or water, but it stops glucose production (from photosynthesis) and u could call glucose the plant’s food.
6 0
3 years ago
Will give brainliest if correct
sergejj [24]

Answer:

A.....

Explanation:

Carbon dioxide plus water yields glucose (sugar) and oxygen.

4 0
2 years ago
Other questions:
  • At this pressure, how many molecules of air would there be in a 20 ∘C experimental chamber with a volume of 0.020 m3 ?
    5·1 answer
  • Balance the following formula equation.<br><br> Al(s) + CuSo4(aq) ---&gt; Al2(So4)3(aq) + Cu(s)
    8·1 answer
  • Heat is transferred at a rate of 2 kW from a hot reservoir at 775 K to a cold reservoir at 300 K. Calculate the rate at which th
    9·1 answer
  • Which of the following is a living resource that humans use from the ocean?
    12·1 answer
  • More than ½ of the world's forests have been lost to deforestation. True False
    9·2 answers
  • Which of the samples shown represents an element?
    9·1 answer
  • Which of these methods could are used to separate an insoluble solid and soluble solid
    15·1 answer
  • HELP ASAP!! PLEASE !!
    12·1 answer
  • 2) A container has an unknown quantity of gas at a pressure of 61.6 kPa, a volume of 3.9 liters, and a temperature
    7·1 answer
  • As you go down group one of the periodic table, the reactions become and more
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!