Question

if the molecular weight of a compound NaxSo4 is 142, then the values of x and y are respectively ​

Answer 1

Answer:

we know mass of Sodium =23

Explanation:

and mass of sulphate =96.02. so , 142+x=96.02+23. --->142+x=119.02. ---->x=142-119.02. now x=23.02 is your answer