Which of the following do you need to know to be able to calculate the molarity of a salt solution?
I.the mass of salt added
II.the molar mass of the salt
III.the volume of water added
IV.the total volume of the solution

Question

Quizplus · Accepted Answer

To calculate the molarity of a salt solution, you need to know the mass of salt added (to calculate the number of moles of salt), the molar mass of the salt (to convert the mass of salt to moles), and the total volume of the solution (to divide the number of moles of salt by the volume of the solution in liters). The volume of water added is not directly needed because molarity depends on the total volume of the solution, not just the volume of water.

Which of the Following Do You Need to Know to Be