What percent of the world's population has flown on an airplane? 80%
60%
40%
less than 10%

the answer for sodium is 0.186

the answer for rubidium is 0.251

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".

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.