Another student carried out the titration accurately. 12.15 cm3 of dilute sulfuric acid with a concentration of 0.140 mol dm–3 reacted completely with 25.00 cm3 of potassium hydroxide solution. H2SO4 + 2KOH → K2SO4 + 2H2O . Calculate the concentration of this potassium hydroxide solution – 9040

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Q1.

Another student carried out the titration accurately. 

12.15 cm3 of dilute sulfuric acid with a concentration of 0.140 mol dm–3 reacted completely with 25.00 cm3 of potassium hydroxide solution. 

H2SO4 + 2KOH → K2SO4 + 2H2O 

Calculate the concentration of this potassium hydroxide solution.

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  1. moles of H2SO4=0.140×12.15/1000=0.001701 mol
    moles of KOH=2×0.001701=0.003402 mol
    concentration of KOH=0.003402×1000//25.00=0.136 mol dm−3

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