# chemistry

posted by .

You mix 50 mL of 0.1 M ammonium phosphate with 75 mL of 0.05 M calcium nitrate. How much of a precipitate forms from this reaction (in grams)?

• chemistry -

2(NH4)3PO4 + 3Ca(NO3)2 ==> Ca3(PO4)2 + 6NH4NO3

moles (NH4)3PO4 = M x L
moles Ca(NO3)2 = M x L.

Using the coefficients in the balanced equation, convert moles (NH4)3PO4 to moles Ca3(PO4)2.
Same procedure, convert moles Ca(NO3)2 to moles Ca3(PO4)2.
In limiting reagent problems, the answers do NOT agree; therefore, one of them must be wrong. In limiting reagent problems, the correct value is ALWAYS the smaller value and the reagent producing that value is the limiting reagent.

Using the smaller value, convert moles to grams. g = moles x molar mass.

## Similar Questions

1. ### Chemistry

How many grams of calcium phosphate (precipitate) could be produced by combining 12.096g of calcium nitrate dissolved in water with 16.498g of rubidium phosphate dissolved in water?
2. ### Chemistry

How many grams of calcium phosphate (precipitate) could be produced by combining 12.443g of calcium nitrate dissolved in water with 16.083g of rubidium phosphate dissolved in water?
3. ### chemistry

A precipitate of calcium phosphate is formed when aqueous solutions of sodium phosphate and excess calcium chloride are mixed. If 100.0 mL of 1.5 M sodium phosphate solution is the limiting reactant, how many grams of calcium phosphate …
4. ### chemistry

Which one of the gollowing represents the theoretical yield, in grams, of precipitate for the double displacement reaction if 25.0 mL of 1.75 M aqueous calcium nitrate is added to 15.0 mL of 1.50 M sodium phosphate?
5. ### Chemistry

50 mL of a 2.5 M solution of ammonium phosphate is added to 100 mL of 1.5 M solution of calcium nitrate. At the end of the reaction 11.2 grams of solid product were obtained. Whats the % yield of this reaction?
6. ### chemistry

50 mL of a 2.50 M solution of ammonium phosphate is added to 100mL of a 1.50 M solution of calcium nitrate. At the end of the reaction 11.2 grams of precipitate produced. What is the percent yield
7. ### chemistry

When calcium chloride and ammonium phosphate are mixed, an insoluble precipitate of calcium phosphate forms and falls out of solution. After careful analysis of the purified precipitate, 8.16 * 10^25 atoms of calcium are found in the …
8. ### Chemistry

How many moles of ammonium nitrate is created from 10.7 grams of ammonium nitrate?
9. ### chemistry

a 36 grams sample of calcium hydroxide is allowed to react with 40.5 grams of phosphoric acid according to the following reaction. how many grams of calcium phosphate are produced?
10. ### chemistry

Stoichiometrics: a 36 grams sample of calcium hydroxide is allowed to react with 40.5 grams of phosphoric acid according to the following reaction. 3Ca(OH)2 + 2H3PO4 = Ca3(PO4)2 + 6H2O how many grams of calcium phosphate are produced?

More Similar Questions