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Reaction of Metals with Acids

How much K2Cr...

Question

How much K₂Cr₂O₇is required to prepare 1 L of 0.1 N solution in acid medium

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Solution

Equivalent weight of K₂Cr₂O₇ in acidic medium = 294/6 = 49g
1L of 1N solution of K₂Cr₂O₇contains 49g of K₂Cr₂O7
So, 1L of 0.1N solution of K₂Cr₂O₇contains 4.9g of K₂Cr₂O₇

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