Question

A chemist prepares a solution of calcium sulfate (CaSO4) by measuring out 0.17 μmol of calcium sulfate into a 500. mL. volumetric flask and filling the flask to the mark with water.Calculate the concentration in jumol/L. of the chemist's calcium sulfate solution. Round your answer to 2 significant digits.

Answer 1

The concentration of the calcium sulfate solution prepared by the chemist is 0.34 μ mol/L after rounding to two significant digits.

Step-by-step explanation:

The concentration of the chemist's calcium sulfate (CaSO4) solution, prepared by dissolving 0.17 µmol of calcium sulfate in a 500 mL volumetric flask, can be calculated using the formula: concentration (in μ mol/L) = amount of solute (in μ mol) / volume of solution (in L).

First, convert the volume of the solution to liters:

• 500 mL = 0.500 L

Next, calculate the concentration:

• Concentration = (0.17 μ mol) / (0.500 L)

Concentration = 0.34 μ mol/L

Rounding this to two significant digits, the concentration of the calcium sulfate solution is 0.34 μ mol/L.