Apatient needs to take 625 mg of ibuprofen twice daily. the pills in the bottle are each 250. mg. how many pills does the patient need to take each time she wants the 625 mg dosage? assume that these pills are scored and can be cut in half if necessary.

Substance a is a nonpolar liquid and has only dispersion forces among its constituent particles. substance b is also a nonpolar liquid and has about the same magnitude of dispersion forces among its constituent particles. when substance a and b are combined, they spontaneously mix.