Answer:
n = 0.0901 mole
Step-by-step explanation:
n = m/Mm
n = number of mole
m = number of mass
Mm = number of molar mass
Given
CaCl2
m = 10grams
Mm of CaCl2
Ca = 40.078
Cl = 35.453
CaCl2 = 40.078 + 2(35.453)
There are two atoms of Cl
= 40.078 + 70.906
= 110.984
m = 10g
n = m/Mm
Insert the values
n = 10/110.984
n = 0.0901 mole
The number of mole is 0.0901mole