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    20.0cm3 of sulfuric acid was titrated against 0.05 mol/dm3 potassium hydroxide. If the acid required 36.0cm3 of the alkali to be neutralised, what is the concentration of the acid?

    I got 0.09 but the answer is 0.045

    Please, can anyone explain why this is the case?

    Thanks
 
 
 
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