Sulfuric acid and sodium hydroxide react together to make sodium sulfate and water: H2SO4 + 2NaOH → Na2SO4 + 2H2O What mass of sodium sulfate is made when 20 g of sodium hydroxide reacts with excess sulfuric acid?
Molar mass of NaOH is 40 g/mol and molar mass of Na2SO4 is 142 g/mol. Number of moles of NaOH = 0.5mol, 0.5 mol of NaOH will react with 0.25 mol of Na2SO4. mass of Na2SO4 = 35.5g
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