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Hydrocarbons A. Combustion 1. Describe the combustion characteristics of heptane and pentene. heptCne puma ngr man pentene 2. (a) Write a balanced equation to represent the complete combustion of heptane. (b) How many moles of oxygen are needed for the combustion of 1 mole of heptane in this reaction? B. and C. Reaction with Bromine and Potassium Permanganate Data Table: Place an X in the column where a reaction was observed. Heptane (Saturated Pentene Toluene Aromati (Unsaturated Hydrocarbon) Hydrocarbon) Hydrocarbon Immediate reaction with Br (without exposure to light) Slow reaction with Br (or only after exposure to light) Reaction with KMno, 1. Which of the thre hydrocarbons reacted with bromine (without exposure to light)? 2. Write an equation to illustrate how heptane reacts with bromine when the reaction mix- ture is exposed to sunlight. - 241 118 REPORT FOR EXPERIMENT 27 (continued)NAME 3. Write an equation to illustrate how pentene reacts with bromine. Assume the pentene is CH,CH CH-CHCH, and use structural formulas. 4. Which of the three hydrocarbons tested gave a positive Baeyer test? D. Kerosene 1. (a) Did you observe any evidence of reaction with bromine before exposure to light? If so, describe. (b) Did you observe any evidence of reaction with bromine after exposure to light? If so, describe. 2. Did you observe any evidence of reaction with potassium permanganate? If so, describe. Based on these tests (bromine and potassium permanganate), to which class of hydrocar- bon does kerosene belong? 3. E. Acetylene 1. Describe the combustion characteristics of acetylene: (a) Tube 1. (b) Tube 2 (c) Tube 3. 242 - - REPORT FOR EXPERIMENT 27 (continued) NAME 2. Write an equation for the complete combustion of acetylene. E Solubility Tests 1. Which of the three hydrocarbons tested are soluble in water? 2. From your observations what do you conclude about the density of hydrocarbons with respect to water? QUESTIONS AND PROBLEMS 1. Do you expect that acetylene would react with bromine without exposure to light? Explain your answer Show transcribed image text
Hydrocarbons A. Combustion 1. Describe the combustion characteristics of heptane and pentene. heptCne puma ngr man pentene 2. (a) Write a balanced equation to represent the complete combustion of heptane. (b) How many moles of oxygen are needed for the combustion of 1 mole of heptane in this reaction? B. and C. Reaction with Bromine and Potassium Permanganate Data Table: Place an X in the column where a reaction was observed. Heptane (Saturated Pentene Toluene Aromati (Unsaturated Hydrocarbon) Hydrocarbon) Hydrocarbon Immediate reaction with Br (without exposure to light) Slow reaction with Br (or only after exposure to light) Reaction with KMno, 1. Which of the thre hydrocarbons reacted with bromine (without exposure to light)? 2. Write an equation to illustrate how heptane reacts with bromine when the reaction mix- ture is exposed to sunlight. - 241 118
REPORT FOR EXPERIMENT 27 (continued)NAME 3. Write an equation to illustrate how pentene reacts with bromine. Assume the pentene is CH,CH CH-CHCH, and use structural formulas. 4. Which of the three hydrocarbons tested gave a positive Baeyer test? D. Kerosene 1. (a) Did you observe any evidence of reaction with bromine before exposure to light? If so, describe. (b) Did you observe any evidence of reaction with bromine after exposure to light? If so, describe. 2. Did you observe any evidence of reaction with potassium permanganate? If so, describe. Based on these tests (bromine and potassium permanganate), to which class of hydrocar- bon does kerosene belong? 3. E. Acetylene 1. Describe the combustion characteristics of acetylene: (a) Tube 1. (b) Tube 2 (c) Tube 3. 242 - -
REPORT FOR EXPERIMENT 27 (continued) NAME 2. Write an equation for the complete combustion of acetylene. E Solubility Tests 1. Which of the three hydrocarbons tested are soluble in water? 2. From your observations what do you conclude about the density of hydrocarbons with respect to water? QUESTIONS AND PROBLEMS 1. Do you expect that acetylene would react with bromine without exposure to light? Explain your answer
Show transcribed image text Irving HeathcoteLv2
20 May 2019