Final answer:
The concentration of a copper sulfate solution made from 2.4g of copper sulfate dissolved in 250cm³ of water is calculated by first finding the number of moles of copper sulfate and then dividing by the volume in liters. The resultant concentration is 0.060 M.
Step-by-step explanation:
Concentration Calculation
To determine the concentration of a copper sulfate solution, we must first calculate the number of moles of copper sulfate (CuSO4) using its molar mass. The molar mass of CuSO4 is approximately 159.61 g/mol. Therefore, the number of moles of CuSO4 in 2.4 g is calculated by dividing the mass by the molar mass:
Number of moles = Mass (g) / Molar mass (g/mol) = 2.4 g / 159.61 g/mol ≈ 0.015 moles.
Next, we convert the volume of water from cm3 to liters since concentration is often expressed in moles per liter (Molarity, M). There are 1000 cm3 in 1 liter, so:
Volume in liters = 250 cm3 / 1000 cm3/L = 0.25 L.
Finally, the concentration of the copper sulfate solution is:
Concentration (M) = Moles of solute / Volume of solution (L) = 0.015 moles / 0.25 L = 0.060 M.