How much mass does 1 mol of O2 gas have? A.15.99 x2g
B. 15.99g
C. 2x (6.02x10^23)g
D.15.99 x (6.02x10^23)g

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