Question

K 2 c o 3 and find the molecular mass​

Answer 1

The given compound is :-

$K_2CO_3$

Atomic mass of Potassium = 39 u

Atomic mass of Carbon = 12 u

Atomic mass of Oxygen = 16 u

Therefore ,

The molecular mass

= 39 × 2 + 12 + 16 × 3

= 78 + 12 + 48

= 137 u

Answer 2

39 is the atomic mass of Potassium then=39×2=78 . 12 is the atomic mass of carbon and 16 is the atomic mass of oxygen then=12 + 16 x 3 =60 then total=60 + 78=138