Question #1fb6a

1 Answer
Jun 5, 2017

164.086g//mol

Explanation:

Ca(NO_3)_2=>Ca_color(red)1(N_color(blue)1O_color(green)3)_color(brown)2

There are (color(red)1Ca), (color(brown)2xxcolor(blue)1N), (color(brown)2xxcolor(green)3O)=>1Ca, 2N, 6O

Find molar mass of each (coefficientxx atomic mass)

1) 1Ca: 1xx40.078=40.078g//mol

2) 2N: 2xx14.007=28.014g//mol

3) 6O: 6xx15.999=95.994g//mol

Add all these masses to get the molar mass of Ca(NO_3)_2

40.078+28.014+95.994=164.086g//mol