January 2019 1 11 Report
21)
Ile jonów wodoru zawiera w 1 ml roztworu, ph równy 13:
a) 10 do potęgi 13;
b) 60,2•10 do potęgi 13;
c) 6,02•10 do potęgi 7;
g) 6,02•10 do potęgi 10?
prosze o pomoc)

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