Question

Equivalent mass of Na2CO3

Answer 1

It is easy to find the equivalent mass for this compound

.

divide the molar mass of the compound by the valence of the element/ion.

Since, Sodium shows +1 oxidation state always

and it's 2 times. so the total charge is +2

so just divide the molar mass by 2

`\text{Mass of } Na_2CO_3 = \frac{2* \text{ mass of sodium } + \text{ Mass of Carbon } + 3* \text{ mass of Oxygen} }{\text{total charge of Cation or Anion}} \\ (2* 23 + 12+3*16)/(2) \\ (46+12+48)/(2) \\ (106)/(2) \\ 53`