How do you find the number of moles for a gas from temperature and pressure?
You use the Ideal Gas Law.
You also need the volume.
Then, you insert the pressure, volume, and temperature into the expression and calculate the number of moles.
The Ideal Gas Law is
#color(blue)(bar(ul(|color(white)(a/a)pV = nRTcolor(white)(a/a)|)))" "#
We can rearrange this formula to get the number of moles,
#n = (pV)/(RT)#
A 3.00 L container is filled with neon gas at 770 mmHg and 27 °C. How many moles of neon are present?
Step 1. List the information given, making conversions as necessary.
Step 2. Calculate the number of moles.
There are 0.123 mol of neon in the container.