Calculate the molecular masses of the following

NICO3
POCL3
H2SO4

To calculate the molecular masses of the given compounds, we need to sum up the atomic masses of all the atoms present in each compound.

1. NICO3:
N = 14.01 g/mol
I = 126.90 g/mol
C = 12.01 g/mol
O = 16.00 g/mol (x3)

Molecular mass of NICO3 = 14.01 + 126.90 + 12.01 + (16.00 x 3) = 14.01 + 126.90 + 12.01 + 48.00 = 200.92 g/mol

2. POCl3:
P = 30.97 g/mol
O = 16.00 g/mol
Cl = 35.45 g/mol (x3)

Molecular mass of POCl3 = 30.97 + 16.00 + (35.45 x 3) = 30.97 + 16.00 + 106.35 = 153.32 g/mol

3. H2SO4:
H = 1.01 g/mol (x2)
S = 32.07 g/mol
O = 16.00 g/mol (x4)

Molecular mass of H2SO4 = (1.01 x 2) + 32.07 + (16.00 x 4) = 2.02 + 32.07 + 64.00 = 98.09 g/mol

Therefore, the molecular masses of NICO3, POCl3, and H2SO4 are 200.92 g/mol, 153.32 g/mol, and 98.09 g/mol, respectively.