The molarity of a solution obtained by mixing 750 mL of 0 . 5 ( M ) HCl with 250 mL of 2 ( M ) HCl will be

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Question: Answered & Verified by Expert

The molarity of a solution obtained by mixing

750 mL

of

0.5 (M) HCl

with

250 mL

of

2 (M) HCl

will be

ChemistrySome Basic Concepts of ChemistryJEE MainJEE Main 2013 (07 Apr)

Options:

A $1.75 M$
B $0.975 M$
C $0.875 M$
D $1.00 M$

Solution:

2799 Upvotes Verified Answer

The correct answer is:

0.875 M

M = \frac{M_{1} V_{1} + M_{2} V_{2}}{V_{1} + V_{2}}

= \frac{750 \times 0.5 + 250 \times 2}{1000}

= \frac{375 + 500}{1000} = 0.875 M

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