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200 mL of water is added to a 500 mL of ...

200 mL of water is added to a 500 mL of 0.2 M solution. What is the molarity of this diliuted solution ?

A

0.5010 M

B

0.2897 M

C

0.7093 M

D

0.1428 M

Text Solution

Verified by Experts

The correct Answer is:
D
0.2 molar solution, ie, 1000 mL solution contains 0.2 mol solute.
`therefore` 500 mL solution contains 0.1 mol solute thus, 700 mLsolution contain
`(0.1)/(500) xx 700 = 0.14` mol
`therefore` Molarity of solution = 0.14 M
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