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Atomicity

What is the m...

Question

What is the molarity of HCl solution containing 0.4 moles in 200 mL of the solution?

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Solution

$M o l a r i t y = \frac{Number of moles of solute}{Volume of solution (in L)}$
Step 1:
Relation between L and mL
As we know 1L = 1000mL
Step 2:
Determine the molarity of HCl solution
$M o l a r i t y = \frac{Number of moles of solute \times 1000}{Volume of solution (in mL)} = \frac{0.4 \times 1000}{200} = 2 M$
Final Answer:
The molarity of HCl solution containing 0.4 moles in 200 mL of the solution is 2M.

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