Dobrý deň, prosím pomoc pri výpočte, odpovede poznám, preto by som chcela dopracovať k odpovediam. Ďakujem.
88. Zmiešaním roztoku 0,1 mmol hydroxidu vápenatého s roztokom 0,1 mmol kyseliny chloristej vznikne roztok, v ktorom:
a) pOH > 7
b) fenolftaleín je bezfarebný
c) metyloranž sa zafarbí na žlto
d) pH > 7
92. Vypočítajte, koľko chloridu draselného vznikne reakciou 5 g draslíka a 6 g HCl. Ktorý reaktant je v nadbytku a aké množstvo zostalo nezreagované?
a) vznikne 9,5 g KCl
b) nezreagovalo 1,3 g HCl
c) v nadbytku je draslík, nezreagovalo 1,31 g
d) v nadbytku je HCl
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