A sample of gas is collected at 306. K and 740. mm of Hg has a mass of
.390 grams and a volume of 350. mL. What is its molar mass? (Hint:
convert units)

A. 25.8 g/mol
B. 78.9 g/mol
C. 28.8 g/mol
D. 45.8 g/mol

6.4 cm (max) - 25 cm (min)

he uptake of drugs from the intestine is often strongly influenced by diffusion. for example, consider a water-insoluble steroid for treating inflammation that is solubilized in aggregates of detergent molecules, called micelles. these micelles, aggregates of 80 soap molecules, have a molecular weight of 24,000, a diameter of 2.6 nm, and a charge of -27. the positively charge ions (counterions) in this system are na".