Question

Calculate the no. of moles in 0.1 g-equivalent of H2SO4

Answer 1

This is a question on molarity :

The molarity = 1/10 M

The number of moles in 200 ml

1/10 = 0.1 moles

0.1 moles are in 1000ml

How many moles are in 200ml?

200/1000 × 0.1 = 0.02 moles

Molar mass of H₂SO₄ = 2 + 32 + 64 = 98

98g/mol

1 mole => 98g

0.02 moles =>? = > 0.02 × 98 = 1.96g