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  4. Two bottles A and B contains 1 M and 1 m aqueous solution of sulphuric acid respectively

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Q. Two bottles A and B contains 1 M and 1 m aqueous solution of sulphuric acid respectively

BVP MedicalBVP Medical 2008

Solution:

$ 1M{{H}_{2}}S{{O}_{4}} $ means 1 mole $ {{H}_{2}}S{{O}_{4}} $ in 1000 cc of solution whereas 1 m means 1 mole $ {{H}_{2}}S{{O}_{4}} $ in 1000 g of water (=1000 cc of water). Total volume of 1 m solution will be > 1000 cc due to extra 1 mole $ {{H}_{2}}S{{O}_{4}} $ . Hence, number of moles per 1000 cc will be less than 1 mole. Thus, 1 m is less concentrated than 1M.