Answer
$164.10$ amu.
Work Step by Step
1. Identify the chemical formula for calcium nitrate:
Calcium: $Ca^{2+}$
Nitrate: $NO{_3}^-$
Calcium nitrate: $Ca_1(NO_3)_2$
2. Calculate the molar mass:
Molar mass ($Ca(NO_3)_2$):
(Atomic mass Ca)* 1 + ( (Atomic mass N)* 1 + (Atomic mass O)* 3 )
40.08 amu * 1 + ( 14.01 amu * 1 + 16.00 amu * 3 )*2 = 164.10 amu.
