39% dioxide. If the actual 2C6H7Br + Sr(OH)2 yield of CaO (MW = + SrBr2 + 2H2O 56.08 g/mol) is 4.32 Using the above kg, what is the reaction, what is the percent yield? maximum amount of 63% benzene (C6H6) that is 75% produced when 42.1 g 52% C6H7Br (MW = 159 83% g/mol) and 49.5 g 31% Sr(OH)2 (MW = 121 Oxidation can be g/mol) are added? described in three 6690 mol C6H6 ways: the gain of 0.265 mol C6H6 5990 mol C6H6 ______, loss of 0.818 mol C6H6 ______, or the _______ 0.133 mol C6H6 of electrons. 0.409 mol C6H6 Hydrogen, Oxygen, 142 mol C6H6 Gain Hydrogen, Oxygen, Loss Oxygen, Hydrogen, Gain Oxygen, Hydrogen, Loss How many of the following are strong What is the molarity electrolytes? of a nitrobenzene HF, Sr(OH)2, (C6H5NO2) solution if HNO3, HNO2, AgBr there are 6.2 moles in One 720 mL of liquid? Two 0.0086 M Three 120 M Four 0.12 M Five 8.6 M Six Reduction is the __CaCO3 3CaO + __CO2 _______ of electrons, In the above reaction, and a(n) _______ in 10.3 kg of CaCO3 (MW = the oxidation number. 100.09 g/mol) is used Gain, Decrease to produce calcium Gain, Increase oxide and carbon
39% 2C6H7Br + Sr(OH)2 + SrBr2 + 2H2O Using the above reaction, what is the maximum amount of benzene (C6H6) that is produced when 42.1 g C6H7Br (MW = 159 g/mol) and 49.5 g Sr(OH)2 (MW = 121 g/mol) are added? 6690 mol C6H6 0.265 mol C6H6 5990 mol C6H6 0.818 mol C6H6 0.133 mol C6H6 0.409 mol C6H6 142 mol C6H6 How many of the following are strong electrolytes? HF, Sr(OH)2, HNO3, HNO2, AgBr One Two Three Four Five Six __CaCO3 3CaO + __CO2 In the above reaction, 10.3 kg of CaCO3 (MW = 100.09 g/mol) is used to produce calcium oxide and carbon dioxide. If the actual yield of CaO (MW = 56.08 g/mol) is 4.32 kg, what is the percent yield? 63% 75% 52% 83% 31% Oxidation can be described in three ways: the gain of ______, loss of ______, or the _______ of electrons. Hydrogen, Oxygen, Gain Hydrogen, Oxygen, Loss Oxygen, Hydrogen, Gain Oxygen, Hydrogen, Loss What is the molarity of a nitrobenzene (C6H5NO2) solution if there are 6.2 moles in 720 mL of liquid? 0.0086 M 120 M 0.12 M 8.6 M Reduction is the _______ of electrons, and a(n) _______ in the oxidation number. Gain, Decrease Gain, Increase
chem_111_mock_final_exam_fall_2017.docx