The volume of decamolar aquous solutions of hydrochloric acid is required to prepare 2dm3 of 5M HCl solution is

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0.5L

answer is B.

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Detailed Solution

M1=10M (deca molar) ; M2=5MV1= ? V2=2 dm3(2l) V1M1= V2M2V1(10) = 2(5)V1=1 litre

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