What mass of sodium carbonate solution is in 500 cm3 of 0.1 molar sodium carbonate solution?

(Na = 23, C = 12, O = 16)

A.

10.6 g

B.

5.3 g

C.

500 g

D.

10 g

E.

20 g

View answer & explanation

Correct answer is B

106 gm Na2CO3 in 1000 cc = 1m
53 gm Na2CO3 in 500 cc = 1m
For 0.1 molar we have (53)/(10) = 5.3

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