Question

How many moles of Pb(NO3)2 are required if 8 moles of PbCl2 are produced

Answer 1

8 mol

Explanation:

Pb(NO₃)₂ + … ⟶ PbCl₂ + …

You want to convert moles of PbCl₂ to moles of Pb(NO₃)₂.

The molar ratio of Pb(NO₃)₂:PbCl₂ is 1/1.

Moles of Pb(NO₃)₂ = 8 × 1/1

Moles of Pb(NO₃)₂ = 8 mol Pb(NO₃)₂

You need 8 mol of Pb(NO₃)₂ to produce 8 mol of PbCl₂.