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250 mL of sodium carbonate solution cont...

250 mL of sodium carbonate solution contains 2.65 grams of `Na_(2)CO_(3)`. If 10 mL of this solution is diluted to one litre, what is the concentration of the resultant solution? (Mol. wt. of `Na_(2)CO_(3) = 106`)

A

0.1 M

B

0.001 M

C

0.01 M

D

`10^(-4)` M

Text Solution

Verified by Experts

The correct Answer is:
B
Molarity of given `N_(2)CO_(3)` solution
`=2.65/106 xx 1/250 xx 1000 = 0.1 M`
`M_(1)V_(1) = M_(2)V_(2)` or `10 xx 0.1 = 1000 xx M_(2)` or `M_(2) = 0.001 M`
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