use the following: Chlorine is used to bleach cloth. Excess Chlorine is destroyed by its reaction with Sodium Thiosulfate (Na2S2O3) according to the unbalanced equation Na2S2O3 + Cl2 + H2O → NaHSO4 + HCl.
How many moles of H2O are required for the reaction of 0.24 moles of Cl2?
A. 0.10 mol H2O
B. 0.20 mol H2O
C. 0.30 mol H2O
D. 0.40 mol H2O
E. 0.50 mol H2O
1
Expert's answer
2018-02-06T11:08:07-0500
Balanced equation: Na2S2O3 + 4 Cl2 + 5 H2O → 2 NaHSO4 + 8 HCl So, the amount of water: 0.24 ∙ (5/4) = 0.30 mol Answer: C. 0.30 mol H2O
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