Complete the following table: (In this problem you are to determine the values for each of the empty entries. The goal of this problem is for you to become comfortable with the moles, molar mass, and Avogadro's number. If you would like some help use the Help table below. To check your answers use the Answer table.)

HELP Table:

If you would like some Help figuring out any of the cells select the Help link for the particular cell you would like assistance.

Formula

M, Molar
Mass (g ­ mol-1)

m, Mass of
sample (g)

n, Moles of
sample (mol)

N, Number of atoms,
molecules or formula units

H2SO4

98.0

0.825

Help

Help

Cr2O3

Help

 Help 

Help

9.63 x 1023

unknown

Help

56.8

0.476

Help

Mo

Help

Help

62.8

Help