Poprosim pomoc , neciem są pohnut dalej
1. Aké je prostredie , ktoré vznikne zmiešaním rovnakých objemov roztokov kyseliny octovej a hydroxidu sodného , ak je ich koncentrácia v povodných roztokoch rovnaka ?
2. Ak sa zmení Ph roztoku ak do roztoku kyseliny octovej pridáme octan sodný ?
3. Roztok NANO3 s koncentráciou 0,1 M mą PH 7 , akt budę PH ak bude koncentrácia NAN03 1 M
4, VYpocitajte Ph roztoku ktorý vznikne zmiešaním 5 ml rozroku HCl s koncentráciou 0,02 mol a 5 ml roztoku KOH s koncentráciou 0,2 mol.
Dakujem Velmi
Zuzana
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