How do you solve gas laws problems with the given "at STP" and with mass?
1 Answer
I like to use the Ideal Gas Law.
Explanation:
The Ideal Gas Law is:
#color(blue)(bar(ul(|color(white)(a/a)PV = nRTcolor(white)(a/a)|)))" "#
where
#P# is the pressure#V# is the volume#n# is the number of moles#R# is the universal gas constant#T# is the temperature
We can rearrange the Ideal Gas Law to get
#V = (nRT)/P#
Also,
∴
EXAMPLE
What is the volume of 10.0 g of hydrogen at STP?
Solution
Remember that STP is defined as 0 °C and 1 bar.