a tank that has a total pressure of 18.9 atm contains 3.6 atm of helium, 9.7 atm of argon, and an unknown amount of xenon. What us the partial pressure of xenon in the tank? A-12.8atm B-13.3atm C-5.6atm D-6.1atm

In a ni-cd battery, a fully charged cell is composed of nickelic hydroxide. nickel is an element that has multiple oxidation states. assume the following proportions of the states: nickel charge proportions found 0 0.17 +2 0.3 +3 0.33 +4 0.5 (a) determine the mean of the nickel charge. enter the answer to 2 decimal places.(b) determine the cumulative distribution function of nickel charge.