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A sample of chalk (CaCO(3)) is contamina...

A sample of chalk (`CaCO_(3))` is contaminated with calcium sulphate 1.0 g of the solid is dissolved in 230 " mL of " `(N)/(10)` HCl, 40.1 `(N)/(10)` NaOH is requried to neutralise the excess acid. What ist he percentage of chalk in the mixture.

A

0.05

B

0.35

C

0.65

D

0.95

Text Solution

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The correct Answer is:
D
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