How much 10% sodium hydroxide solution is needed to neutralize 100 g of 10% sulfuric acid solution?

1. Calculate the mass of sulfuric acid in the solution according to the formula. The mass is 10 g.

2. Find the amount of sulfuric acid substance.

3. We make the equation of the reaction between sulfuric acid and sodium hydroxide. We find the quantitative ratios of the starting materials and reaction products.

1 mol of sulfuric acid reacts with 2 mol of sodium hydroxide, therefore the amount of sodium hydroxide substance will be 2 times more than that of sulfuric acid.

n (NaOH) = 0.1 mol x 2 mol = 0.2 mol.

3. Find the mass of sodium hydroxide by the formula.

4. Calculate the mass of the NaOH solution using the formula.

Answer: m (NaOH solution) = 80 g.