What is the volume occupied by 3.00 mol of hydrogen gas at STP? *

V=67.2 L

Explanation:

For this problem we will need to use the Ideal Gas Law.

Ideal Gas Law: PV=nRT

P=1.00 atm (STP)

V=?

n=3.00 mol

R=0.08206Latm/Kmol

T=273.15 K (STP)

To find V, we would manipulate the equation to V=nRT/P

With significan figures, our answer is V=67.2 L.

a compound is a molecule made of atoms from different elements.

a. by the combination of an unlimited number of elements

it forms an anion that has a larger radius. anions have a negative charge and are larger than the original atom.