Practice Work 53 Stoichiometry-04 Mixed Stoichiometry Problems

Transcription

1 Last Name Do Date First Name Section M T W R Practice Work 53 Stoichiometry-04 Mixed Stoichiometry Problems General Information You will need a periodic table, your stoichiometry notes, and Appendix 12 for this assignment. Sorry about the lack of format. I m in a time crunch g/mol g/mol g/mol Reaction 1: P4(s) + 6 Cl2(g) 4 PCl3(g) molecules (grams) 1A) On the Stoichiometry Map below: circle the starting place and the ending place, given the information above. 1B) Calculate the mass (in grams) of phosphorus trichloride that will be formed from chlorine molecules. Page 1 of 9

2 Reaction 2 Information will be used for Questions 2a, 2b, 3a, and 3b g/mol g/mol g/mol g/mol Reaction 2: 2 NaCl(aq) + Pb(NO3)2(aq) PbCl2(s) + 2 NaNO3(aq) 4.00 M L 1.00 M L (grams) 2A) On the Stoichiometry Map below: circle the starting place and the ending place, given the information above. 2B) Calculate the mass (in grams) of lead(ii) chloride that will be formed from the limiting reagent. Page 2 of 9

3 Reaction 2 Information will be used for Questions 2A, 2B, 3A, and 3B g/mol g/mol g/mol g/mol Reaction 2: 2 NaCl(aq) + Pb(NO3)2(aq) PbCl2(s) + 2 NaNO3(aq) 4.00 M L 1.00 M L (molarity) 3A) On the Stoichiometry Map below: circle the starting place and the ending place, given the information above. 3B) Remember that molarity is equal to the moles of solute divided by the total volume of solution. Look carefully at the data. Calculate the total volume of the solution after both reactants are added together. 3C) Calculate the molarity of sodium nitrate from the limiting reagent. Page 3 of 9

4 98.09 g/mol g/mol g/mol g/mol g/mol Reaction 4: H2SO4(aq) + 2 NaHCO3(aq) Na2SO4(aq) + 2 CO2(g) + 2 H2O(g) M L 1.50 M L (particles) 4A) On the Stoichiometry Map below: circle the starting place and the ending place, given the information above. 4B) Calculate the number of molecules of carbon dioxide that will be produced from the limiting reactant. Page 4 of 9

5 61.98 g/mol g/mol g/mol Reaction 5: Na2O(s) + H2O(l) 2 NaOH(aq) g L (molarity) 5A) On the Stoichiometry Map below: circle the starting place and the ending place, given the information above. 5B) Calculate the molarity of NaOH. Remember the volume of solution comes from the liquid volume of water. (There is no liquid volume for Na2O because it is a solid.) Page 5 of 9

6 61.98 g/mol g/mol g/mol Reaction 5: Na2O(s) + H2O(l) 2 NaOH(aq) g L (molarity) 5A) On the Stoichiometry Map below: circle the starting place and the ending place, given the information above. 5B) Calculate the molarity of NaOH. Remember the volume of solution comes from the liquid volume of water. (There is no liquid volume for Na2O because it is a solid.) Page 6 of 9

7 g/mol g/mol g/mol g/mol Reaction 6: K2SO4(s) + 2 AgNO3(aq) 2 Ag2SO4(aq) + KNO3(aq) L 1.80 M Volume 1.25 M 6A) On the Stoichiometry Map below: circle the starting place and the ending place, given the information above. 6B) Calculate the volume (in L) of AgNO3 that is required to react with L of 1.80 M potassium sulfate. Page 7 of 9

8 g/mol g/mol g/mol Reaction 8: Cl2O7(g) + H2O(l) HClO4(aq) (particles) 4.00 L M 8A) On the Stoichiometry Map below: circle the starting place and the ending place, given the information above. 8B) Calculate the number of molecules of dichlorine pentoxide was necessary to produce 4.00 L of M HClO4. Page 8 of 9

9 g/mol g/mol g/mol Reaction 9: Cl2O3(g) + H2O(l) HClO2(aq) g L M 9A) On the Stoichiometry Map below: circle the starting place and the ending place, given the information above. 9B) Calculate the volume (in L) of M HClO2 that is produced from grams of Cl2O3. Page 9 of 9