Question

How to find molecular mass of nacl,cacl2,mgo

Answer 1

Answer:

Explanation:

Nacl = 23 +34 =57 , cacl2 =40 +68 =108 , mgo =24 +16 =40    

Answer 2

Answer:

For NaCl: algebraically add the atomic masses of Na and Cl..

For CaCl2 : multipy the atomic mass of chlorine with 2 and then add it to atomic mass of Ca..

For MgO : algebraically add the atomic masses of Mg and O

Atomic mass of Na-23 amu

Cl-35.5 amu

Ca-40 amu

Mg-24 amu

O-16 amu