Chemistry, 17.12.2019 01:31 Thejollyhellhound20
Consider the following general voltaic cell and a cell notation, and answer all three parts of this question.
mg(s) | mg2+(aq) || cl2(g) | cl−(aq) | c(s)
part 1: based on the cell notation, the substance of electrode a is [ select ] ["mg(s)", "c(s)", ""] , and the substance of electrode b is [ select ] ["c(s)", "mg(s)"] .
part 2: what is the balanced redox equation for the voltaic cell?
a) mg2+(aq) + 2 cl−(aq) \rightarrow → mg(s) + cl2(g)
b) mg2+(aq) + cl−(aq) \rightarrow → mg(s) + cl2(g)
c) mg(s) + cl2(g) \rightarrow → mg2+(aq) + 2 cl−(aq)
d) mg(s) + cl2(g) \rightarrow → mg2+(aq) + cl−(aq)
e) none of the above is correct, because c(s) doesn't appear in any of them.
part 3:
- if the salt bridge contains nano3, na+ ions flow to the [ select ] ["left", "right"] , and no3− ions flow to the [ select ] ["left", "right"] .
- electrons flow from electrode [ select ] ["a", "b"] to electrode [ select ] ["b", "a"] .
Answers: 3
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