Answer on Question #40466, Chemistry, Other
Question
In the following reaction, how many grams of sulfuric acid, H₂SO₄, will be needed to react with 87.3 g of sodium hydroxide, NaOH?
2NaOH + H₂SO₄ → Na₂SO₄ + 2H₂O
Answer
Stoichiometric ratio:
n(H₂SO₄):n(NaOH) = 1:2 = 0.5
Mass ratio:
m(H₂SO₄):m(NaOH) = [M(H₂SO₄)·n(H₂SO₄)]:[ M(NaOH) · n(NaOH)] = [M(H₂SO₄)/ M(NaOH)] · [n(H₂SO₄):n(NaOH)] = [98/40] · 0.5 = 1.225
m(H₂SO₄):m(NaOH) = 1.225; m(H₂SO₄) = 1.225 · m(NaOH) = 1.225 · 87.3 g = 106.9 g.
Answer: 106.9 g