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How much water should be added to 2 M HCl solution to form 1 litre of 0.5 M HCl ?

Answer:

Solution:

To find the volume of the concentrated HCl needed, use the dilution formula: $M_{1} V_{1} = M_{2} V_{2}$ .

Given: $M_{1} = 2$ M, $V_{2} = 1$ L, $M_{2} = 0.5$ M.

$2 M \times V_{1} = 0.5 M \times 1 L$

$V_{1} = \frac{0.5 M \times 1 L}{2 M} = 0.25 L$

Water to be added = $V_{2} - V_{1} = 1 L - 0.25 L = 0.75 L$ .

Stream:JEESubject:ChemistryTopic:Concentration TermsSubtopic:Concentration term

⏱ 2mℹ️ Source: QB

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