A water quality technician took a 283 mL sample from a pond. The technician was able to determine that 3.7 mol of fluoride ion were dissolved. What is the concentration of fluoride in this solution? 1L = 1000mL

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.