Question

3Cl2 + 6NaOH ----- 5NaCl + NaClO3 + 3H2O

What is the eq mass of Cl2?

How to do this question? Please explain.

Answer 1

Answer:

3Cl

2

+6NaOH⟶5NaCl+NaClO

3

+3H

2

O

Oxidation: 6OH

−

+

2

1

Cl

2

⟶2ClO

3

−

+5e

−

+3H

2

O

Reduction: 5/2Cl

2

+5e

−

⟶5Cl

−

3 moles of Cl

2

& 5 moles of electrons are involved in the redox reaction.

Molar mass of Cl

2

=71

∴ Equivalent mass of Cl

2

=

5

3×71

=42.6g/mol

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