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Why was a hot filtration required in recrystallization?What factors would affect your percent recovery?
- Why is it important to let the solution slowly cool to room temperature before further cooling in the refrigerator. How would this affect your purity? Be specific!
- What other factors might affect purity?
- If you were in a chemistry lab, how would you determine the purity of your crystals?Don't just name the technique, instead elaborate on how specifically this technique will tell you if your crystals are pure or impure.
- How does the color of your dry crystals compare to the mother liquor and to the color of the pure crystals (epsom salts right out of the bag). Rationalize your observations.
- Why were the crystals initially dissolved in hot water?
- When rinsing the crystals at the very end, why did you have to use ice cold water?
- What would have happened if you used hot water instead?
- What happed to the color and the quantity of your crystals after each rinse?
- What would happen to your percent recovery if you did not let the crystals dry overnight? Explain.
- What would happen to your percent recovery if you rinsed the crystals with hot waterinstead of cold water? Explain
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