What mass of sodium carbonate solution is in 500 cm3 of 0.1 molar sodium carbonate solution?
(Na = 23, C = 12, O = 16)
- 10.6 g
-
5.3 g
- 500 g
- 10 g
- 20 g
The correct answer is: B
Explanation
106 gm Na2CO3 in 1000 cc = 1m53 gm Na2CO3 in 500 cc = 1m
For 0.1 molar we have (53)/(10) = 5.3