Question

The molar mass of an unknown material is 78.430 g/mol. What is the mass of half of a mole of the unknown material?

pls help me

Answer 1

hoy

Step-by-step explanation:

Answer 2

39.215g

Step-by-step explanation:

Molae mass means mass in 1 mole.

If 78.430g is in 1 mole

Xg is in 0.5 mole

cross multiply

X x 1 = 78.430 x 0.5

X = 39.215 g