Final answer:
The volume of the solution is 7.44 mL.
Step-by-step explanation:
To determine the volume of the solution, we can use the formula:
Volume = Mass / Concentration
Given that the mass of CuNO3 is 6.25 g and the concentration is 0.840 M, we can substitute these values into the formula:
Volume = 6.25 g / 0.840 M = 7.44 mL
Therefore, the volume of the solution is 7.44 mL.