Problem: Which sample contains the greatest number of moles of Cl?(a) 3.8 mol HCl(b) 1.7 mol CH2Cl2(c) 4.2 mol NaClO3(d) 2.2 mol Mg(ClO4)2

(a) 3.8 mol HCl

1 mol HCl: 1 mol Cl

$moles Cl = 3.8 mol HCl \times \times \frac{1 mol Cl}{1 mol HCl}$

moles Cl = 3.8 mol

(b) 1.7 mol CH₂Cl₂

1 mol CH₂Cl₂: 2 mol Cl

$moles Cl = 1.7 mol {CH}_{2} {Cl}_{2} \times \times \frac{2 mol Cl}{1 mol {CH}_{2} {Cl}_{2}}$

moles Cl = 3.4 mol

(c) 4.2 mol NaClO₃

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Which sample contains the greatest number of moles of Cl?

(a) 3.8 mol HCl

(b) 1.7 mol CH₂Cl₂

(d) 2.2 mol Mg(ClO₄)₂

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Mole Concept concept. You can view video lessons to learn Mole Concept. Or if you need more Mole Concept practice, you can also practice Mole Concept practice problems.