The molarity (M) of a solution is equal to the:

A) number of grams of solute/liter of solvent

B) number of grams of solute/liter of a solution

C) number of moles of solute/liter of solvent

D) number of moles of solute/liter of solution

The correct answer is D) number of moles of solute/liter of solution

Explanation:

Molarity is a measure of concentration and is defined as the moles of solute in 1 liter of solution. Example: 3M NaCl solution (means that there are 3 moles of solute, in this case NaCl, in 1 L of solution)

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".