How many moles of calcium phosphate can be produced

Reference no: EM133723363

General Chemistry

SYNTHESIS OF CALCIUM PHOSPHATE

Place your answers in this report and submit in the correct eLearn Dropbox (as a pdf file) before the deadline.

Procedure:

CaCl₂ and Na₃PO4 were weighed using electronic balance.(in this step electronic scale was set into zero before getting measurements)

CaCl₂ and Na₃PO₄ were put separately into two beakers and a volume of 25ml of water was added into beakers and they were mixed separately using glass rod until get two clear solutions.

After that prepared Na3PO4was poured into prepared CaCl2 solution and mixed well using glass rod.

Mixture was placed on a ice bath for 10 minutes.

After that it was filtered into filter paper using suction filtration and it was let into dry for overnight.

After overnight, crystals remaining in the filter paper was collected into clean paper using metal rod.

Then watch glass was placed on an electronic scale and weighed and then crystals was added into that and weigh was measured.

The difference between two measurements were taken to get the exact weight of the crystals.

Post-lab Questions:

Question 1. Describe the physical appearance of the calcium phosphate that was isolated?

Question 2. Based on stoichiometry from the balanced equation (see Procedure document), how many grams of calcium phosphate can be produced from the amount of calcium chloride weighed and used? Show calculations or narrate how you determined this.

Question 3. Based on stoichiometry from the balanced equation, how many moles of calcium phosphate can be produced from the amount of sodium phosphateweighed and used? Show calculations or narrate how you determined this.

Question 4. Based on your answers from Questions 2 and 3, which is the limiting reagent: calcium chloride, sodium phosphate, or are they equivalent?

Question 5. Based on your answers from Questions 2 and 3, what is the theoretical yield of calcium phosphate?

Question 6. What is your percent yield for this synthesis?

Question 7. What is the mass percent composition of calcium in Ca₃(PO₄)₂?

Reference no: EM133723363

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