at a certain temperature nitrogen dioxide gives dinitrogen tetroxide in a second order reaction. the rate constant for this reaction is 4.50/M min. what will be the concentration of nitrogen dioxide after 0.355 min, if one starts with an initial concentration of 0.281 M​

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.