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25.3 g of sodium carbonate, Na(2)CO(3) i...

25.3 g of sodium carbonate, `Na_(2)CO_(3)` is dissolved in enough water to make 250 mL of solution. If sodium carbonate dissociates completely, molar concentration of sodium ions, `Na^(+)` and carbonate ions, `CO_(3)^(2-)` are respectively (Molar mass of `NaCO_(3)=106g mol^(-1)`)

A

1.90 M and 1.910 M

B

0.477 M and 0.477 M

C

0.955 M and 1.910 M

D

1.910 M and 0.955 M

Text Solution

Verified by Experts

The correct Answer is:
D
`"M of "Na_(2)CO_(3)=0.955 M`
`therefore" molarity of "Na^(+)" ion "=2xx0.955=1.91M`
`"Molarity of "CO_(3)^(2-)=1xx0.955=0.955 M`
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