Question

What is the mass of 9.38*10^24 molecules of methanol?

Answer 1

Let's first find the mass of 1 mole of CH3OH?
methanol chemica formula CH3OH

Answer 2

C is12
H3 is 3x1 which equals 3
O is 16 and H is 1
Molar mass altogether of CH3OH is 32.04200 ± 0.00002 g/mol

Answer 3

6.02x10^23 molecules weigh 32g
9.38x10^24 molecules has to weigh 9.38x10^24 x (32/6.02x10^23) = ??