Question

molar mass ( n_{5} times=41 cdot 988 g )
option (4) is corriect

# A mixture of 1.65 x 1021 molecules of X and 1.85 x 1021 molecules of Y weighs 0.688 g. The mol. wt. of X is (Assume mol. wt. of Y is 187). (1) 52 (2) 84 (3) 126 (4) 41.47

Solution