Final answer:
To find the volume of the solution, we must calculate the number of moles of the solute from its mass, use the molarity to find the volume in liters, and then convert that volume to milliliters.
Step-by-step explanation:
The question involves finding the volume of a solution when its mass (of the solute) and molarity are given. To determine the volume of the solution in milliliters, we need to use the molarity formula M = moles of solute/volume of solution in liters. First, we must calculate the number of moles of the solute (CuNO3 assuming that CuNO3 represents a typo and the compound is a generic copper nitrate), which can be found by dividing the mass of the solute by its molar mass. Once we have the moles, we can rearrange the molarity formula to solve for the volume. The volume can then be converted to milliliters (since 1 L = 1000 mL).
Here is a breakdown of the steps we would follow:
- Calculate the number of moles of CuNO3 by dividing the mass (7.94 g) by the molar mass of CuNO3.
- Use the molarity (0.860 M) to find the volume of the solution in liters by rearranging the molarity formula to V = moles/M.
- Convert the volume from liters to milliliters.
The actual calculation would require the molar mass of CuNO3, which is not given and thus cannot be completed. However, if it were provided or determined from the periodic table, we would follow the above steps to find the solution's volume in milliliters.