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Chemie

Jaké je pH roztoku KOH o hmotnosti 100 g, ve kterém je látková koncentrace c(KOH) rovna 10-4 mol dm-3?

Jaké je pH roztoku KOH o hmotnosti 100 g, ve kterém je látková koncentrace c(KOH) rovna 10^-4 mol dm^-3?