QuestionAt , a saturated solution of calcium sulfate, , has a concentration of . A student takes 65 mL of this solution and evaporates it. What mass of solute should be left in the evaporating dish?
Studdy Solution
STEP 1
1. The concentration of the saturated calcium sulfate solution is .
2. The volume of the solution taken by the student is .
3. We are looking for the mass of calcium sulfate left after evaporation.
STEP 2
1. Convert the volume from milliliters to liters.
2. Calculate the number of moles of calcium sulfate in the given volume.
3. Calculate the mass of calcium sulfate using its molar mass.
STEP 3
Convert the volume from milliliters to liters. Since there are in , we convert to liters:
STEP 4
Calculate the number of moles of calcium sulfate in the given volume using the concentration:
STEP 5
Calculate the mass of calcium sulfate using its molar mass. The molar mass of is approximately :
The mass of solute left in the evaporating dish is approximately:
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