Question

Pls help i have 0 clue what this even means

Show all work including units and the equation you used to solve. Carbon dioxide gas has a molar mass of 44 g/mol. At 300K and 1.5atm, a sample of carbon dioxide has a volume of 4.5 L. Find the number of moles of the carbon dioxide.
EXTRA POINTS: Find the mass of the carbon dioxide.

Answer 1

Answer: 0.27 moles of CO2 and 11.88 grams of CO2

Explanation: Use the Ideal Gas Law, PV = nRT, substitute the values given and solve.

I can't seem to upload procedure but:

P = 1.5atm

V = 4.5L

n = moles

R = 0.0821gr/mol (when using atm, kPa is 8.31)

T = 300K

Isolate what you don't have, in this case n. Change PV = nRT to PV/RT = n. Substitute the values to get moles. Once you have this, multiply the value by the molar mass of CO2 (44gr/mol) to get the mass of CO2 in grams.