How many moles of sulfuric acid H2So4 are contained within 157 g of sulfuric acid?

The answer to your question is 1.6 moles of H₂SO₄

Explanation:

Data

moles of H₂SO₄ = ?

mass of H₂SO₄ = 157 g

Process

1.- Calculate the molar mass of H₂SO₄

Molar mass = (1 x 2) + (32 x 1) + (16 x 4)

                   = 2 + 32 + 64

                   = 98 g

2.- Use proportions and cross multiplication to find the moles of H₂SO₄

                      98 g of H₂SO₄ 1 mol

                    157 g of H₂SO₄ x

                            x = (157 x 1) / 98

                            x = 157 / 98

-Result

                           x = 1.6 moles of H₂SO₄