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WORKSHEET 13 Name - Cerritos College

6/22/2017 B Solution Stoichiometry Name_____ CHEMISTRY 110 last first 1] How many grams of calcium phosphate can be produced from the reaction of L of M calcium chloride with and excess of phosphoric acid? calcium chloride + phosphoric acid --> calcium phosphate + hydrochloric acid 3 CaCl2 + 2H3PO4 ---> Ca3(PO4)2 + 6 HCl CaCl2 X. CaCl21mol X. 3mol CaCl2 1mol Ca3(PO4)2 X.

1] How many grams of calcium phosphate can be produced from the reaction of 2.50 L of 0.250 M Calcium chloride with and excess of phosphoric acid? Calcium chloride + phosphoric acid --> calcium phosphate + hydrochloric acid. 3CaCl2 + 2H 3PO 4---> Ca (PO )2 + 6HCl. 2.50L CaCl2 X. 0.250L CaCl2 1mol . X. 3mol CaCl. 2. 1mol Ca. 3 (PO. 4) 2. X. 1mol ...

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Transcription of WORKSHEET 13 Name - Cerritos College

1 6/22/2017 B Solution Stoichiometry Name_____ CHEMISTRY 110 last first 1] How many grams of calcium phosphate can be produced from the reaction of L of M calcium chloride with and excess of phosphoric acid? calcium chloride + phosphoric acid --> calcium phosphate + hydrochloric acid 3 CaCl2 + 2H3PO4 ---> Ca3(PO4)2 + 6 HCl CaCl2 X. CaCl21mol X. 3mol CaCl2 1mol Ca3(PO4)2 X.

2 1mol Ca3(PO4)2 = Answer _____ Ca3(PO4)2 2] How many milliliters of M Nitric acid is required to react with g of cuprous oxide 14 HNO3 + 3Cu2O ---> 6 Cu(NO3)2 + 2 NO + 7H2O Cu2O X 1mol X 14mol HNO33mol Cu2O X 1000ml HNO3 = x 103ml HNO3 Answer _____ 3] mL of HNO3 are required to react with mL of a M Barium hydroxide solution: 2 HNO3(aq) + Ba(OH)2(aq) --> 2 H2O(s) + Ba(NO3)2(aq) (BALANCED) Find the Molarity of the nitric acid solution Ba(OH)2 X 1L103ml X. 1L Ba(OH)2 X 2mol HNO31mol Ba(OH)2 = HNO3 MHNO3 = mol L soln = M Answer _____ 4] For the following equation determine which reactant is the limiting reactant and which reactant is in excess.

3 The amounts of reagent used are shown. Show calculations to support your choices 3Fe + 4H2O ----> Fe3O4 + 4H2 g Fe X X 1mol Fe3O43molFe = mol Fe3O4 H2O X X 1mol Fe3O44mol H2O = mol Fe3O4 <==== amount made The limiting reactant is ____H2O_____ The excess reactant is _____Fe_____ 5] g of silver nitrite is reacted with grams of sodium sulfide which produces silver sulfide and sodium nitrite. a. Write and balance the equation 2 AgNO2 + Na2S ---> Ag2S + 2 NaNO2 Calculate the number of grams of silver sulfide produced.

4 AgNO2 X 1mol X 1mol Ag2S2mol AgNO2 = mol Ag2S<==== amount made Na2S X. 1mol Na2S X 1mol Ag2S1mol Na2S = mol Ag2S mol mol Ag2S X Ag2S1mol = Ag2S Answer _____ 6/22/2017 B c. How many grams of silver nitrite will remain at the end of the reaction? Answer _____0 g_____ The AgNO2 is the limiting reactant d. How many grams of sodium sulfide will remain at the end of the reaction? mol Ag2S X 1mol Na2S1 mol Ag2S X g Na2S1mol = Na2S used Excess Na2S = - = Na2S Answer _____ 6] Calculate the grams of silver chloride produced from ml of magnesium chloride with ml of M silver nitrate 2 AgNO3 + MgCl2-->Mg(NO3)2(s) + 2 AgCl(aq) L MgCl2 X MgCl21 L X 2mol AgCl1mol MgCl2 = mol AgCl<==== amount made L AgNO3 X X 2mol AgCl2mol AgNO3 = mol AgCl mol AgCl X AgCl1mol = AgCl Answer _____ 7] Aluminum reacts with oxygen to form aluminum oxide.

5 4Al + 3O2 ---> 2Al2O3 (balanced) If of Al and g of oxygen are reacted, and g of aluminum oxide is produced, what is the percent yield for the reaction? Al X 1mol X 2mol Al2O34mol Al = mol Al2O3<==== amount made g O2 X 1mol O2 X 2mol Al2O33mol O2 = mol Al2O3 mol Al2O3 X Al2O31mol = g Al2O3 % Yield = (100) = Answer _____ 8] . According to the following reaction:.. 2 Cu(s) + O2(g) ----> + 2 CuO(s) a. If the percentage yield is how many grams of CuO will be produced from g of Cu?

6 G Cu X 1mol X 2mol CuO2mol Cu X X Actual100g Theo. = g CuO Answer _____ many grams of Cu must you use to produce x 1013mg CuO? x 1013mg CuO X 10-31mg X 1mol X 2mol Cu2mol CuO X Cu1mol X = x 1010g Answer _____


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