29.2% (w/w) HCl stock solution has a density of 1.25 g mL^ -1 . The molecular weight of HCl is 36.5 g mol^ -1 . The volume (mL) of stock solution required to prepare a 200 mL solution of 0.4 M HCl is

JEE Advanced 2012 Chemistry question

29.2% (w/w) HCl stock solution has a density of 1.25 g . The molecular weight of HCl is 36.5 g . The volume (mL) of stock solution required to prepare a 200 mL solution of 0.4 M HCl is

Answer: 8

Solution

Molarity of the stock solution: 1 L has mass g, of which HCl is g $=

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Question ID VK-026042