Classify each chemical reaction: reaction Na₂S (aq) + FeCl₂ (aq) → 2NaCl(aq) + FeS (s) -> 2CH, (CH₂) CH₂(g) + 130₂(g) → 8CO₂(g) + 10H₂O(g) CH₂CH₂CH₂(g) + 50₂(g) → 3CO₂(g) + 4H₂O(g) KBr(aq) + AgNO3(aq) → KNO3(aq) + AgBr(s) type of reaction (check all that apply) combination single replacement double replacement decomposition combination O single replacement double replacement Odecomposition combination single replacement O double replacement Odecomposition combination O single replacement double replacement. Odecomposition X O precipitation combustion acid-base precipitation combustion acid-base Oprecipitation combustion acid-base O precipitation combustion acid-base

Classify each chemical reaction: reaction Na₂S (aq) + FeCl₂ (aq) → 2NaCl(aq) + FeS (s) -> 2CH, (CH₂) CH₂(g) + 130₂(g) → 8CO₂(g) + 10H₂O(g) CH₂CH₂CH₂(g) + 50₂(g) → 3CO₂(g) + 4H₂O(g) KBr(aq) + AgNO3(aq) → KNO3(aq) + AgBr(s) type of reaction (check all that apply) combination single replacement double replacement decomposition combination O single replacement double replacement Odecomposition combination single replacement O double replacement Odecomposition combination O single replacement double replacement. Odecomposition X O precipitation combustion acid-base precipitation combustion acid-base Oprecipitation combustion acid-base O precipitation combustion acid-base

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter10: Fuels, Organic Chemicals, And Polymers

Section: Chapter Questions

Problem 89QRT

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Insoluble AgCl(s) precipitates when solutions of AgNO3(aq) and NaCl(aq) are mixed. AgNO3(aq) + NaCl(aq) AgCl(s) + NaNO3(aq) rH = ? To measure the energy evolved in this reaction, 250. mL of 0.16 M AgNO3(aq) and 125 mL of 0.32 M NaCl(aq) are mixed in a coffee-cup calorimeter. The temperature of the mixture rises from 21.15 C to 22.90 C. Calculate the enthalpy change for the precipitation of AgCl(s), in kJ/mol. (Assume the density of the solution is 1.0 g/mL and its specific heat capacity is 4.2 J/g K.)
Ethanol, C2H5OH, is a gasoline additive that can be produced by fermentation of glucose. C6H12O62C2H5OH+2CO2 (a) Calculate the mass (g) of ethanol produced by the fermentation of 1.000 lb glucose. (b) Gasohol is a mixture of 10.00 mL ethanol per 90.00 mL gasoline. Calculate the mass (in g) of glucose required to produce the ethanol in 1.00 gal gasohol. Density of ethanol = 0.785 g/mL. (c) By 2022, the U. S. Energy Independence and Security Act calls for annual production of 3.6 1010 gal of ethanol, no more than 40% of it produced by fermentation of corn. Fermentation of 1 ton (2.2 103 lb) of corn yields approximately 106 gal of ethanol. The average corn yield in the United States is about 2.1 105 lb per 1.0 105 m2. Calculate the acreage (in m2) required to raise corn solely for ethanol production in 2022 in the United States.
The carbon dioxide exhaled in the breath of astronauts is often removed from the spacecraft by reaction with lithium hydroxide 2LiOH(s)+CO2(g)Li2CO3(s)+H2O(l) Estimate the grams of lithium hydroxide required per astronaut per day. Assume that each astronaut requires 2.50 103 kcal of energy per day. Further assume that this energy can be equated to the heat of combustion of a quantity of glucose, C6H12O6, to CO2(g) and H2O(l). From the amount of glucose required to give 2.50 103 kcal of heat, calculate the amount of CO2 produced and hence the amount of LiOH required. The H for glucose(s) is 1273 kJ/mol.
A rebreathing gas mask contains potassium superoxide, KO2, which reacts with moisture in the breath to give oxygen. 4KO2(s)+2H2O(l)4KOH(s)+3O2(g) Estimate the grams of potassium superoxide required to supply a persons oxygen needs for one hour. Assume a person requires 1.00 102 kcal of energy for this time period. Further assume that this energy can be equated to the heat of combustion of a quantity of glucose, C6H12O6, to CO2(g) and H2O(l). From the amount of glucose required to give 1.00 102 kcal of heat, calculate the amount of oxygen consumed and hence the amount of KO2 required. The ff0 for glucose(s) is 1273 kJ/mol.
4.60 Why are fuel additives used?
The equation for the fermentation of glucose to alcohol and carbon dioxide is: C6H12O6(aq) 2C2H5OH(aq) + 2CO2(g) The enthalpy change for the reaction is 67 kJ. Is this reaction exothermic or endothermic? Is energy, in the form of heat, absorbed or evolved as the reaction occurs?
One of the few industrial-scale processes that produce organic compounds electrochemically is used by the Monsanto Company to produce1,4-dicyanobutane. The reduction reaction is 2CH2CHCH+2H++2eNC(CH2)4CN The NC(CH2)4CN is then chemically reduced using hydrogen gas to H2N(CH2)6NH2, which is used in the production of nylon. What current must be used to produce 150.kg NC(CH2)4CN per hour?
4.61 What is actually measured by the octane ratings of different grades of gasoline?
Experiments show that propionic acid (CH3CH2COOH) is a weak acid. Write the chemical equation.
• describe the chemical processes used in biomass production and conversion to biofuels.
For each chemical reaction listed in the table below, decide whether the highlighted atom is being oxidized or reduced. reaction H₂S(aq) + 2NaOH(aq) → Na₂S(aq) + 2 H₂O(1) FeO(s)+CO(g) → Fe(s) + CO₂(g) CO(g) + H₂O(g) → CO₂(g) + H₂(g) 2 NH3(aq) + H₂SO4(aq) → (NH4)2SO4(aq) highlighted atom is being... oxidized reduced O O O X neither oxidized nor reduced 5
Classify each chemical reaction: CH₂ CH₂OH() + 30, (g) 200₂ (g) + 3H₂O(g) reaction FeSO (aq) + PbCl₂ (aq) → FeCl₂ (aq) + PbSO₂ (s) - CaCO3(s) → Cao(s) + CO₂(g) CH₂(g) + 20₂(g) → CO₂(g) + 2H₂O(g) - Explanation Check type of reaction (check all that apply) combination single replacement double replacement Odecomposition combination single replacement double replacement decomposition combination single replacement double replacement decomposition combination single replacement double replacement decomposition X precipitation combustion acid-base precipitation combustion acid-base precipitation combustion acid-base precipitation combustion acid-base S © 2023 McGraw Hill LLC. All Rights Reserv