Question

How many moles of ions are there in
11.1 gm of CaCl2? (molar mass
111.0 gm mol-1​

Answer 1

Answer:

Molecular weight of CaCl

2

=111g/mol

Ions in one calcium chloride molecule = Ca

+2

+2Cl

−

= 3 ions

Now no. of molecules in 111g/mol of CaCl

2

= Avogadro's number

= 6.02×10

23

molecules

So number of ions in 111g/mol of CaCl

2

=3×6.02×10

23

ions =3 moles.