Question

Write the names of the following compounds and deduce their molecular masses- Na2SO4 and K2CO3.​

Answer 1

Answer:

na2so4=sodium sulphate

k2co3=potassium carbonate

Explanation:

na2so4 mass =142.04214g/mol

k2co3 mass =174.259g/mol

Answer 2

Answer:

The name of the compound K2Co3 is potassium carbonate.

It contains potassium ions (K+) and

corbanate ions (CO3²-)

The molecular mass for this compound is:

Atomic mass for:

potassium =39

carbon =12

Oxygen =16

Molecular mass of potassium carbonate is thus:

39×2+1216×3=138

Molecular mass of K2CO3 is 138 grams/

mole