A3.31 × 10-4 m solution of a new drug (273 g•mol-1) has an absorbance of 0.750 in a 1.00-cm cell. a 0.3122 g tablet containing the drug is dissolved in water to a final volume of 500.0 ml, and has an absorbance of 0.654 under the same conditions. what is the mass percent of the drug in the tablet?
a) 87.4
b) 56.9
c) 18.9
d) 12.6

Drug abuse will not lead to physical and psychological dependence. true or false ?

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

How many grams of magnesium metal will react completely with 8.3 liters of 5.5m hcl? show all work