Question

Which solution could you prepare by dilution?

a. 400 milliliters of 2.50 molar solution from a 2.00 molar stock solution
b. 600 milliliters of 3.00 molar solution from a 2.50 molar stock solution
c. 700 milliliters of 4.50 molar solution from a 3.00 molar stock solution
d. 900 milliliters of 3.50 molar solution from a 4.50 molar stock solution Please help me understand this question. :)

Answer 1

The solution that you can prepare by dilution must have a lower concentration than stock solution. The volume can be ignored. So the right answer is d.