Dexamethasone is poorly water-soluble. its solubility could be improved by using a co-solvent, such as ethanol. to minimise the ethanol content in an oral formulation, optimal water/ethanol mixtures should be used. dexamethasone elixir usp contains 5.00% of ethanol. calculate the solubility parameter of the mixed solvent in this formulation.

how to solve this?

The number at the end of an isotope’s name is the number.

The comparison of the number of atoms in a copper coin the size of a penny with the number of people on earth is made to illustrate which of the following? a. that atoms are indivisible b. that atoms are very small c. that atoms are very large d. that in a copper penny, there is one atom for every person on earth

Which of the following characteristics are true of enzymes? check all that apply. a.)the structure of an enzyme can change if conditions change. b.)a single enzyme can normally catalyze a wide variety of reactions under many conditions. c.)enzymes are found only in nonliving systems. d.)enzymes allow living things to regulate body conditions through feedback mechanisms. e.)enzymes bind to specific substrates in specific ways. f.)enzymes increase the rate of reaction. g.)when shown in energy-reaction diagrams, enzymes represent the higher activation energy.