Zadanie 30
Some standard electrode potentials for copper are shown. Cu2+(aq) + e− ⇌ Cu+(aq), E⊖ = +0.15 V Cu+(aq) + e− ⇌ Cu(s), E⊖ = +0.52 V Cu2+(aq) + 2 e− ⇌ Cu(s), E⊖ = +0.34 V…
Wczytuję zadania…
Zapisujemy na Twoim urządzeniu to, bez czego serwis nie działa, np. zalogowanie. Plików analitycznych użyjemy tylko za Twoją zgodą. Szczegóły w polityce prywatności.
Wybierz umiejętność, rok lub poziom trudności.
Pokazujemy tylko poziomy, dla których mamy zadania.
Znaleziono 1476 zadań
Some standard electrode potentials for copper are shown. Cu2+(aq) + e− ⇌ Cu+(aq), E⊖ = +0.15 V Cu+(aq) + e− ⇌ Cu(s), E⊖ = +0.52 V Cu2+(aq) + 2 e− ⇌ Cu(s), E⊖ = +0.34 V…
Which of the structures I, II and III are structural isomers of C4H8? A. I and II only B. I and III only C. II and III only D. I, II and III
Which compound contains a chiral carbon atom? A. 1-chlorobutane B. 2-chloropentane C. 3-chloropentane D. 2-chloropropane
Which conditions best favour the oxidation of butan-1-ol to butanal rather than to butanoic acid? A. Excess oxidizing agent, heated under reflux B. Excess oxidizing agent, heated with the product distilled off as it forms C. Limited oxidizing agent, heated…
What information about pentan-2-one, CH3COCH2CH2CH3, can be obtained from mass spectrometry (MS), infrared (IR) spectroscopy and 1H NMR spectroscopy? A. MS: the compound contains a carbonyl group; IR: the molar mass is 86 g mol−1;…
Which compound gives the low-resolution 1H NMR spectrum shown? A. Ethanal B. Ethanoic acid C. Methyl ethanoate D. Propanone