Question

what is the mass of 0.82 mol of the element potassium (K)? answer in units of g.

Answer 1

molar mass of potassium is 39.0983 g/Mol

using conversion factors

0.82 Mol K (39.0983 g/ 1 mol)

mol cancels out, leaves you w grams

answer: 32.1 grams K