Oxygen gas of 27.4 L at 25℃ with the pressure of 1.30 atm and 8.50 L of helium gas at 25℃ with a pressure 2.00 atm was pumped into a tank with a volume of 5.81 L at 25℃. Calculate the partial pressure of oxygen in the 5.81L tank. * 1.30 atm
4 atm
6.13 atm
3.30 atm

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.

In which region is the substance in both the solid phase and the liquid phase? 1 2. 3 4 mark this and return save and exit next

Which of the following statements are incorrect?