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 solution is saturated with calcium sulfate at .
2. The concentration of the saturated solution is .
3. The student takes of this solution.
4. We need to find the mass of the solute (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 solution.
3. Convert the moles of calcium sulfate to mass using its molar mass.
STEP 3
Convert the volume from milliliters to liters.
STEP 4
Calculate the number of moles of calcium sulfate in the solution using the concentration.
STEP 5
Convert the moles of calcium sulfate to mass using its molar mass. The molar mass of calcium sulfate () is approximately .
The mass of solute left in the evaporating dish is approximately:
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