A solution is prepared by mixing 37.2 mL of 0.389 M potassium phosphate(aq) and 43.0 mL of 0.490 M potassium sulfate(aq), then adding enough water to bring the total volume to 200.0 mL. Calculate the molarity of K in the resulting solution.

The yearly amounts of carbon emissions from cars in belgium are normally distributed with a mean of 13.9 gigagrams per year and a standard deviation of 5.8 gigagrams per year. find the probability that the amount of carbon emissions from cars in belgium for a randomly selected year are between 11.5 gigagrams and 14.0 gigagrams per year. a. 0.340 b. 0.660 c. 0.167 d. 0.397