Acetaminophen (c8h9no2) is the active ingredient in many nonprescription pain relievers. each tablet contains 500 mg of acetaminophen, and a typical adult dose is two tablets every eight hours.
• determine the molar mass of acetaminophen (show your work).
• calculate the number of moles of acetaminophen in a single tablet (show your work).
• calculate the number of moles of acetaminophen that an adult would have taken if she took three doses of acetaminophen in one day (show your work).

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.

answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error