Calculate the mass of sulfuric acid that reacts with 7g of potassium hydroxide H2SO4 + KOH- K2SO4 + H2O

univerkov | September 23, 2021 | education

Given:
m (KOH) = 7 g

Find:
m (H2SO4) -?

1) H2SO4 + 2KOH => K2SO4 + 2H2O;
2) n (KOH) = m / M = 7/56 = 0.125 mol;
3) n (H2SO4) = n (KOH) / 2 = 0.125 / 2 = 0.0625 mol;
4) m (H2SO4) = n * M = 0.0625 * 98 = 6.125 g.

Answer: The mass of H2SO4 is 6.125 g.

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