Question

Write the formulae for the following and calculate the molecular mass for each one of them,

a) Baking powder

b) Quick lime

c) Common salt

(Given atomic masses: Sodium= 23u, Chlorine= 35.5u, Carbon= 12u, Oxygen = 16u,

Calcium= 40u)​

Answer 1

Step-by-step explanation:

a) NaHCO₃

= 23 + 1 + 12 + 16×3

= 23 + 1 + 12 + 48

= 84 g/mol

b) CaO

= 40 + 16

= 56 g/mol

c) NaCl

= 23 + 35.5

= 58.5 g/mol