Ca (OH) 2 + H2SO4 ⟶2H2O + CaSO4 What volume of 1.45 M Ca (OH) 2 is needed to react with 25.0 moles of H2SO4?

We need 17.2 L of Ca (OH) 2

Explanation:

Step 1: Data given

Concentration of Ca (OH) 2 = 1.45 M

Moles of H2SO4 = 25.0 moles

Step 2: The balanced equation

Ca (OH) 2 + H2SO4 ⟶2H2O + CaSO4

Step 3: Calculate moles Ca (OH) 2

For 1 mol Ca (OH) 2 we need 1 mol H2SO4 to produce 2 moles H2O and 1 mol CaSO4

For 25.0 moles H2SO4 we'll need 25.0 moles Ca (OH) 2 to produce 50 moles H2O and 25.0 moles CaSO4

Step 4: Calculate volume of Ca (OH) 2

Volume Ca (OH) 2 = moles Ca (OH) 2 / concentration Ca (OH) 2

Volume Ca (OH) 2 = 25.0 moles / 1.45 M

Volume Ca (OH) 2 = 17.2 L

We need 17.2 L of Ca (OH) 2