Question

calculate the unit formula mass of hydrated sodium carbonate​

Answer 1

Mass of Na = 23gm

Mass of C = 12gm

Mass of O = 16gm

Mass of H = 1gm

Formula unit mass = 23×2+12+16×3+10(2+16)

= 46+60+180

= 286gm

Hope it will help you .

Answer 2

$\huge\bold\purple{Answer:-}$

Hii friends solution of this question is very simple only the things which you should know are:

Mass of Sodium=23grams

Mass of Carbon=12grams

Mass of Oxygen=16grams

Mass of Hydrogen=1gram

So, there is your solution:

Formula unit mass=Na2Co3.10H2O

=23×2+12+16×3+10(2+16)

=46+60+180

=286grams.