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Molarity

200 mL of 1...

Question

$200$ mL of $1$ M $H C l$ is mixed with $300$ mL of $6$ M $H C l$ and the final solution is diluted to $1000$ mL. The molar concentration of $[H^{+}]$ ion is:

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Solution

Moles of $H C l =$ $6 \times 0.300 + 1 \times 0.200 = 2$ mol.

Volume of the solution is $1$ L.

So, molar concentration of $[H^{+}]$ ion $= \frac{2}{1} = 2 M$ .

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