Calculate the molarity and normality of the following: (a) 200.0 mg · L−1 HCl (b) 150.0mg·L−1 H2SO4 Answers: Molarity (M) (a) 0.005485 (b) 0.001529 (c) 0.0006168 (d) 0.000714 (c) 100.0 mg · L−1 Ca(HCO3)2 (d) 70.0mg·L−1 H3PO4 Normality (N) 0.005485 0.003059 0.001234 0.00214

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