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
Lelu [443]
3 years ago
10

A sample of N2(g) was collected over water at 25°C and 730 torr in a container with a volume of 340 mL. The vapor pressure of wa

ter at 25°C is 23.76 torr. What mass of N2 was collected?
A. 0.58 g
B. 0.72 g
C. 0.91 g
D. 0.36 g
E. 0.080 g
Chemistry
1 answer:
AnnZ [28]3 years ago
6 0

Answer:

D. 0.36 g

Explanation:

When a gas is collected over water, the total pressure is the sum of the pressure of the gas and the pressure of the water vapor.

Ptotal = Pwater + PN₂

PN₂ = Ptotal - Pwater = 730 torr - 23.76 torr = 706 torr

We can find the mass of N₂ using the ideal gas equation.

P.V=n.R.T=\frac{m}{M} .R.T\\m=\frac{P.V.M}{R.T} =\frac{730torr.0.340L.28g/mol}{(0.08206atm.L/mol.K).298K} .\frac{1atm}{760torr} =0.36g

You might be interested in
All of the following can increase the rate of chemical reaction EXCEPT:
dangina [55]

Except catalyst because catalyst typically speed up a reaction by reducing the activation energy or changing the reaction mechanism.

5 0
3 years ago
How do you convert moles of a compound to mass?​
laiz [17]

Answer:

Divide the mass of the compound in grams by the molar mass you just calculated. The answer is the number of moles of that mass of compound

Explanation:

3 0
4 years ago
Drag each tile to the correct box.
ElenaW [278]

Explanation:

Wind turbines generate electricity by following simple principle. Moving wind transfers energy to the to the blades of the wind mill which results in spinning of the blades. These blades are connected to internal shaft which also starts spinning. This spinning of shaft generates electricity which is further distributed to electrical substations to provide electricity to homes and businesses.

Step 1: Wind moves the blades of the turbine.

Step 2: Internal shaft spins

Step 3: Generator produces electricity

Step 4: Distribution lines carry electricity to substation

7 0
3 years ago
How many times of o are there?
lions [1.4K]
I would say 4 but you can figure it out or if you have a parent near by to
3 0
3 years ago
Read 2 more answers
What are the horizontal parts of the periodic table called
Andru [333]
The Answer is Periods .
5 0
3 years ago
Other questions:
  • In a coffee shop, the following coffee samples are prepared for customers. i. 10 g of sugar added to 100 g of coffee ii. 10 g of
    14·2 answers
  • Name the product(s) of the complete combustion of any hydrocarbon.
    14·1 answer
  • Suppose you increase your walking speed from 4 m/s to 13 m/s in a period of 1 s. What is your acceleration? m/s2
    8·1 answer
  • Can the volume of a gas be measured? Yes, just the measure the volume of the container it is in. No, the volume will always be d
    7·2 answers
  • What system is a kidney stone?
    14·2 answers
  • Convert 614 Cal to J. Only include the numerical value in your answer. Respond with the correct number of significant figures in
    12·1 answer
  • 7. What is the difference between a measured value and an accepted value? How are these values used to determine the precision o
    7·1 answer
  • Which method can be used to separate a mixture of ethanol and water into its
    14·2 answers
  • If objects with a greater mass have greater gravitational pull, why is our solar
    9·1 answer
  • 1)
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!