Concept explainers
(a)
Interpretation:
The stable isomer or decomposition product of the given structure is to be stated.
Concept introduction:
Tautomers are isomers which differ only in the position of the protons and electrons of the double bond of the electronegative atom in the compound. There is no change in the carbon skeleton of the compound. This phenomenon which involves simple proton transfer in an intramolecular fashion is known as tautomerism. The very common example of tautomerism is Keto-enol tautomerism. It can be acid or base-catalyzed.
(b)
Interpretation:
The stable isomer or decomposition product of the given structure is to be stated.
Concept introduction:
The
(c)
Interpretation:
The stable isomer or decomposition product of the given structure is to be stated.
Concept introduction:
Chemical decomposition is the breakdown of one molecule into two different or the same molecule to attain stability. It may be of three types, thermal, photochemical, and electrolytic decomposition reactions.
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EBK ORGANIC CHEMISTRY
- In each of the following reactions, two possible organic products can be formed. Draw both organic products in each case and then circle the one formed in greatest quantity in each case. HC (a) 1) NaH, 2) acid (b) CH,CH,OH (c) CH,CH,OH NH2 (d) Oarrow_forward85. Propane, C3H8, is a hydrocarbon that is commonly used as a fuel. (a) Write a balanced equation for the complete combustion of propane gas. (b) Calculate the volume of air at 25 °C and 1.00 atmosphere that is needed to completely combust 25.0 grams of propane. Assume that air is 21.0 percent O2 by volume. (Hint: We will see how to do this calculation in a later chapter on gases—for now use the information that 1.00 L of air at 25 °C and 1.00 atm contains 0.275 g of O2 per liter.) (c) The heat of combustion of propane is −2,219.2 kJ/mol. Calculate the heat of formation, ΔH∘fΔHf° of propane given that ΔH∘fΔHf° of H2O(l) = −285.8 kJ/mol and ΔH∘fΔHf° of CO2(g) = −393.5 kJ/mol. (d) Assuming that all of the heat released in burning 25.0 grams of propane is transferred to 4.00 kilograms of water, calculate the increase in temperature of the water.arrow_forward(a) When the metallic element sodium combines with the nonmetallic element bromine, Br2(l), how can you determine the chemical formula of the product? How do you know whether the product is a solid, liquid, or gas at room temperature? Write the balanced chemical equation for the reaction. (b) When a hydrocarbon burns in air, what reactant besides the hydrocarbon is involved in the reaction? What products are formed? Write a balanced chemical equation for the combustion of benzene C6H6(l), in air.arrow_forward
- This question is about the chemistry of alkenes, which are unsaturated hydrocarbons. (a) State what is meant by the term unsaturated as applied to a hydrocarbon. (1) (b) An organic compound, X, is an unsaturated hydrocarbon with molecular formula CH₂. (i) Draw the displayed formulae and give the names of two molecules with molecular formula C₂H, which are E/Z isomers. (3) Isomer 1 Isomer 2 Name: Name:arrow_forwardWrite down a balanced chemical equation for the complete combustion of methanol CH3OH(I) to CO2(g) H2O(I)arrow_forwardA student adds bromine solution to a test tube containing an isomer of C3H6. After shaking the sample and exposing it to UV light, the student observes that the colour of the bromine solution changes from orange to clear. Provide a hypothesis for what happened in the test tube. What do you believe to be the structure of the original isomer, and what was the final product, if a reaction occurred?arrow_forward
- Write the basic equilibrium equation for (CH₃)₂NH.arrow_forwardConsider the hydrotreating of this organic substance:H2NCH2CSCH2COOH +___ H2(g) → (a) Complete a balanced chemical equation to producethe most common hydrogen compounds of N, S, andO and a saturated hydrocarbon.(b) Why is more hydrotreating needed after coking thanafter hydrocracking?arrow_forwardDraw Lewis structures for the following compounds, andpredict which member of each pair will form hydrogen bonds:(a) NH₃ or AsH₃(b) CH₄ or H₂Oarrow_forward
- Explain the reaction between Methyl Salicylate with acetyl chloride (CH3COCl). Gives your answer in detail from the name of the reaction until the formation of the product. You are advised to give an illustration of the reaction.arrow_forwardDraw the skeletal structure of the product(s) for the Lewis acid-base reaction.arrow_forwardWrite the structures of the following organic halogen compounds :(i) 4-tert-Butyl-3-iodoheptane(ii) 4-Bromo-3-methylpent-2-enearrow_forward
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning