Question

Convert into mole
a) 40g of water
b) 20g of carbon dioxide

Answer 1

Answer:

2.22 moles and 0.45 moles

Explanation:

a) Molecular mass of water=18g

Number of moles= Given mass/Molecular mass

Number of moles in 40g of water=40/18=2.22 moles

b) Molecular mass of carbon dioxide=44g

So, Number of moles in 20g=20/44=0.45 moles