In which of the following cases would recrystallization be favored over extraction when purifying a mixture of two solid compounds?
1. When both compounds have the same functional group(s).
II. When the desired compound is poorly soluble in the solvent pair at low temperatures and greatly soluble in the solvent pair at high temperatures.
III. When there is a significant excess of the desired compound.
A. I and III.
B. II.
C. II and III.
D. I and II.
E. All of the above.
F. None of the above.
Answers: 3
Chemistry, 21.06.2019 20:30, sandersmakaylaovq5vu
The balanced chemical equation for this lab is: 3cucl2(aq) + 2al(s) 3cu(s) + 2alcl3(aq) if 10.5 g copper chloride react with 12.4 g aluminum, what is the limiting reactant?
Answers: 3
Chemistry, 22.06.2019 11:40, arlabbe0606
Effect of rotenone and antimycin a on electron transfer rotenone, a toxic natural product from plants, strongly inhibits nadh dehydrogenase of insect and fish mitochondria. antimycin a, a toxic antibiotic, strongly inhibits the oxidation of ubiquinol. (a) explain why rotenone ingestion is lethal to some insect and fish species. (b) explain why antimycin a is a poison. (c) given that rotenone and antimycin a are equally effective in blocking their respective sites in the electron-transfer chain, which would be a more potent poison? explain.
Answers: 3
Chemistry, 22.06.2019 14:30, KennyOaks6230
Which of the following units is not an official si unit
Answers: 1
Chemistry, 22.06.2019 20:20, catchonyet
Which formula equation represents the burning of sulfur to produce sulfur dioxide? s(s) + o2(g) 4502(9) 2h2s(s) + 302(g) —> 2h20(0) + 2502(9) 4fes2+1102 —> 2fe2o3 + 8502 2802(g) + o2(9) v205 , 2503(9)
Answers: 1
In which of the following cases would recrystallization be favored over extraction when purifying a...
Mathematics, 28.01.2021 01:20
Mathematics, 28.01.2021 01:20
Computers and Technology, 28.01.2021 01:20
Mathematics, 28.01.2021 01:20