Question

calculate the relative molecular mass of sodium carbonate(Na2Co3)
[Na 23, c 12, O 16]​

Answer 1

Answer:

106

Explanation:

Na = 23

C = 12

O =16

In Na2CO3,

There are 2 Na atom, 1 C atom and 3 O atom

So relative molecular mass = (23 * 2) + 12 + (16 * 3)

                                             = 106

Answer 2

Answer:

Thanks it is very helpful for examination