Question

How to calculate molecular mass? Plz tell me​

Answer 1

Answer:

number of atoms × mass number

Explanation:

H20

Hydrogen = 2 × 1

Oxygen = 1 × 16

2 + 16 = 18

So the molecular mass is 18 amu

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Answer 2

Answer:

1 Make use of the chemical formula to determine the number of atoms of each element in the compound.

2 Multiply the atomic weight of each element with its number of atoms present in the compound.

3 Add up all and assign unit as grams/mole.