20. The electrode indicated in column (2) of table 22 forms a galvanic cell alternately with the electrode indicated in column (4) - options for two galvanic cells. Indicate the polarity of the electrode from column (2) in options I and II - (put a sign “ ” or “-”) in column (5) Write the total reactions in both versions (elements) of graph (6), write the calculated values of Ka and ΔG0 in columns (7) and (8). Provide calculations of Ka and ΔG0.
Table 22
I-el-d options II-nd el-dy polarity on I el-de Total reaction Ka ΔG0,
kJ/mol
1 2 3 4 5 6 7 8
20-7 Cd2 /Cd I Fe2 /Fe
II Co2/Co

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