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Tomáš K.
chémia - sš

Príprava roztokov

Zdravím, vie niekto túto tému? Ak áno napíšte mi a pošlem vám zadanie. Za každú pomoc vopred dakujem. Pekný deň.

Tomáš K.
chémia - sš

koncentrácia

Vypočítajte koncentráciu roztoku KOH, ak 250ml roztoku obsahuje 0,125 mol KOH.

Tomáš K.
chémia - sš

Molarita – molárna koncentrácia (výpočet)

Zdravím vedel by nikto túto tému? Ak áno napíšte mi. Dakujem za každú pomoc ,sam to neviem.

Tomáš K.
chémia - sš

esterifikácia

Dobrý deň, pomohol by mi niekto s touto témou? Za každú pomoc ďakujem.

Alžbeta V.
chémia

akútne

aká je vhodná hybridizácia atómu dusíka v amidovom anióne NH2- ?

Terezka N.
chémia - sš

Príklad

Dobrý deň, chcela by som vás poprosiť o riešenie nasledujúcich príkladov (7+8) s krátkym komentárom, aby som to pochopila. Ďakujem pekne.

Kristína B.
chémia - sš

pH

Ako sa rieši táto úloha ?

Alexandra N.
chémia

Zlúčenina

Ako by ste pomenovali zlúčeninu H20B16?

Kristína B.
chémia - sš

pH vzniknutého roztoku

Ako sa rieši táto úloha ?

Michal V.
chémia - sš

org. chémia

Dobrý večer, prosím vás o skontrolovanie/opravu/doplenenie. Ďakujem za každú odpoveď.

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