Calculate the molecular weights for nh3 and sf6

a) = 17 g/mol

b) = 146 g/mol

Explanation:

The molecular weight of a compound is equal to the sum of the atomic weights of the constituent elements.

a)

Atomic weight of N = 14 g/mol

Atomic weight of H = 1 g/mol

Molecular weight =

b)

Atomic weight of S = 32 g/mol

Atomic weight of F = 19 g/mol

Molecular weight =

i just learnt this recently but i need to look through my notes again