Question

A student adds 3.5 moles of solute to enough water to make a 1500 mL solution. What is the concentration?

A) 2.3 M
B) 0.00233 M
C) 3.5 M
D) 1.5 M

Answer 1

The concentration of the solution is 2.33 M.

Step-by-step explanation:

To determine the concentration of the solution, we need to calculate the molarity (M). Molarity is defined as the number of moles of solute per liter of solution. In this case, the student added 3.5 moles of solute to make a 1500 mL solution. To find the molarity, we divide the number of moles by the volume in liters, which is 1.5 L (since 1500 mL is equal to 1.5 L). Therefore, the concentration is 3.5/1.5 = 2.33 M.