Question

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 HCI can be formed from 0.25 moles of CI2?

A. 0.10 mol HCI
B. 0.20 mol HCI
C. 0.30 mol HCI
D. 0.40 mol HCI
E. 0.50 mol HCI

Answer 1

Step-by-step explanation:

Na₂S₂O₃ + 4Cl₂ + 5H₂O → 2NaHSO₄ + 8HCl.

4 moles 8 moles

4 moles of Cl₂ forms 8 moles of HCl

.25 moles of Cl₂ forms 8 x .25 / 4 moles of HCl

HCl formed = .50 moles .

E is the answer .