Question

If 8.6 g of Cu(NO₄)2 is dissolved in water, what is the molar concentration of Cu(NO₄)2?

1) 0.1 M
2) 0.2 M
3) 0.3 M
4) 0.4 M

Answer 1

To determine the molar concentration of Cu(NO₄)2, we need to use the formula for molarity, which is moles of solute divided by liters of solution. However, the question does not provide information about the volume of the solution, so we cannot determine the molar concentration of Cu(NO₄)2.

Step-by-step explanation:

To determine the molar concentration of Cu(NO₄)2, we need to use the formula for molarity, which is moles of solute divided by liters of solution.

First, we need to calculate the moles of Cu(NO₄)2 using its molar mass. The molar mass of Cu(NO₄)2 is 187.57 g/mol, so to convert the given mass of 8.6 g to moles, we divide by the molar mass: 8.6 g / 187.57 g/mol = 0.046 mol.

Next, we need to determine the volume of the solution in liters. This information is not provided in the question, so we cannot determine the molar concentration of Cu(NO₄)2.