Question

Which of the following expressions is equivalent to molarity [M]?

a. [M] = moles of solute volume of solution in liters
b. [M] = grams of solute volume of solution in liters
c. [M] = moles of solute volume of solution in gallons
d. [M] = volume of solution in liters moles of solute

Answer 1

A. [M]=moles of solute volume of solution in liters

Answer 2

Molarity is the number of moles of solute dissolved in one liter of solution. It is also calculated with the following equation:
M (mol/L)= n (mol)/ V (L)
Thus a is the best answer.
Hope this would help :))