Question

***** Chemistry Medal in Exchange for Help*****
A mixture of gases contains oxygen, nitrogen, and hydrogen at 0 degrees Celsius. The partial pressure of the oxygen gas is 20 kPa, the partial pressure of nitrogen gas is 40 kPa, and the partial pressure of hydrogen gas is 14 kPa. What is the total pressure exerted?
Select one:
a. 62 kPa
b. 68 kPa
c. 74 kPa
d. 78 kPa

I would love to know the correct answer, but beyond that, I'm curious how you solve equations like this in the future.

I've tried and I keep getting different answers.

Thanks in advance!

Answer 1

Considering this is at STP....and according to Dalton's law of pressures..you actually just add them all up.

Answer 2

If you want to learn this out yourself

look up "dalton's law of partial pressures"

Answer 3

Thanks again @dtan5457 my class had a study guide and I couldn't get 4 questions, but was able to work the rest out.

You rock. :)

Answer 4

lol yw. feel free to medal and tag me onto more questions :)

Answer 5

:)