Chemistry, 24.02.2020 23:48 lekaje2375
KCl has the same structure as NaCl. The length of the unit cell is 628pm. The density of KCl is 1.984 g/cm3, and its formula mass is 74.55 amu. Using this information, calculate Avogadro’s number.
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Consider the reduction reactions and their equilibrium constants. cu+(aq)+e−↽−−⇀cu(s)pb2+(aq)+2e−↽−−⇀pb(s)fe3+(aq)+3e−↽−−⇀fe(=6.2×108=4.0×10−5=9.3×10−3 cu + ( aq ) + e − ↽ − − ⇀ cu ( s ) k =6.2× 10 8 pb 2 + ( aq ) +2 e − ↽ − − ⇀ pb ( s ) k =4.0× 10 − 5 fe 3 + ( aq ) +3 e − ↽ − − ⇀ fe ( s ) k =9.3× 10 − 3 arrange these ions from strongest to weakest oxidizing agent.
Answers: 3
KCl has the same structure as NaCl. The length of the unit cell is 628pm. The density of KCl is 1.98...
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