How many moles?

Question

H2SO4 is a strong acid. One liter of a 1.75 Molar solution of sulfuric acid in water has ______ moles of H2SO4; _____moles of H+; ______ moles SO4

Answer 1

Hi Diana,

 

Each mole of H₂SO₄ contains 2 moles of H₊ and 1 mole of SO₄^2-.

 

1 L of 1.75 M H₂SO₄ contains 1.75 mol of H₂SO₄.

 

1.75 mol of H₂SO₄ * 1 mol SO₄^2- / 1 mol H₂SO₄ = 1.75 mol SO₄^2-

1.75 mol of H2SO4 * 2 mol H⁺ / 1 mol H₂SO₄ = 3.5 mol H⁺