Why rate of reaction is fastest, if distilled water is not added to 50 mL (.e D flask) 0.1 Na,s,o,?
Answers
Answered by
0
Explanation:
Total number of millimoles of metallic salt present =50mL×0.1M=5 millimoles.
Total number of millimoles of sodium sulphite =25mL×0.1M=2.5 millimoles.
The oxidation number of S changes from +5 to +6.
Increase in the oxidation number of 1 S atom = 1.
Total number of millimoles electrons lost by sodium sulphite = 2.5
5 millimoles of metallic salt gains 2.5 millimoles of electrons.
1 molecule of metallic salt will gain 0.5 electron.
Hence, the oxidation number of metal will decrease from 3 to 2.5.
Similar questions