1. Propranolol (C16H21NO2) is a beta blocker used to treat patients with high blood pressure. Each tablet contains 80.0 mg of propranolol. An adult dose is 2 tablets. • Calculate the molar mass of propranolol.

• Calculate the number of moles of propranolol in a single tablet. Work must be shown to earn credit.

• Calculate the number of moles of propranolol that an adult would have taken if she took 3 doses of propranolol in one day. Work must be shown to earn credit.

shield volcanos are angry and get mad over the smallest things so much that there heads erupt   pahoehoe and a'a lava. a composite volcano is the poller opposite of a shield volcano. its   peaceful thing and knows how to control its emotions.      

answer;

18.5 seconds

explanation;

velocity is distance covered per unit time; it is given by displacement divided by time.

thus; time = displacement/velocity

total time = total displacement/velocity

total distance = 5000 meters south

total time = 5000/4.5

                  = 1111.11 seconds

but; 1 minute = 60 sec

thus; 1111.11 /60

                = 18.51 seconds

thus; the time taken is 18.5 seconds