Formula |
M , Molar Mass(gmol-1) |
mass of sample(g) |
n, number ofmoles of sample |
N, number of atoms,molecules or formula units |
H2SO4 |
98.0 |
0.825 |
2nd answer |
To determine the molar mass of H2SO4 the atomic mass of each of the elements in the formula must be obtained from the periodic table. The atomic masses are;
H 1.01 u
S 32.0 u
O 16.0 u
Since there are 2 hydrogen atoms and 4 oxygen atoms in the formula the molecular mass is;
H 2 x 1.01 u = 2.02 u
S 1 x 32.0 u = 32.0 u
O 4 x 16.0 u = 64.0 u
Total = 98.0 gmol-1