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