Question

To find the mass of Ca(NO3)2 you would add up ___ Calcium, ___ Nitrogens, and ___ Oxygens.

Answer 1

The answer for the following answer is mentioned below.

• Therefore the mass of calcium nitrate ( $Ca(NO_{3} )_{2}$

Explanation:

To find the mass of calcium nitrate ($Ca(NO_{3} )_{2}$ ) is :

No of calcium are 1

No of nitrogen are 2

No of  oxygen are 6

$( NO_{3} ){2}$ = $N_{2} O_{6}$

So therefore;

No of nitrogen are 2

No of  oxygen are 6

Mass of  ($Ca(NO_{3} )_{2}$ ) :

molecular mass of calcium =40

molecular mass of nitrogen = 14

molecular mass of oxygen = 16

$N_{2} O_{6}$  = (14×2) + (16×6)

           = 28 + 96

           = 124

$Ca(NO_{3} )_{2}$  = 40 + 124

$Ca(NO_{3} )_{2}$  = 164 grams

Therefore the mass of calcium nitrate ( $Ca(NO_{3} )_{2}$ ) is 164 grams