Basic Chemistry
6th Edition
ISBN: 9780134878119
Author: Timberlake, Karen C. , William
Publisher: Pearson,
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Chapter 9, Problem 84CP
The following problems are related to the topics in this chapter. However, they do not all follow the chapter order and they require you to combine concepts and skills from several sections. These problems will help you increase your critical thinking skills and prepare for your next exam.
In the body, ethanol (
a. How many grams of
b. How many grams of
c. How many grams of
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Part I. Complete the following chemical reactions. Do not forget to balance the reaction, the states of matter and answer any questions that are asked. In the next reaction, a gas is formed. (19 points).
HCl (aq) + Mg (s) →
Gas that was released:
Mg (s) + O2 (g) →
Cu2S (s) + O2 (g) →
Gas that was released:
2. 13.9 g of ammonium nitrate is dissolved in a total volume of 225 mL in a coffee cup
calorimeter. If the initial temperature of the water is 27.0 °C, what will the final
temperature of the solution be if the heat of solution of ammonium nitrate is 25.7
kJ/mol?
Density of the solution is 1.02 g/mL, the specific heat is approximately 4.17 J/g.ºC,
and the molar mass of ammonium nitrate is 80.043 g/mol.
According to the given reactions, which of the following is not exothermic?
SO2(g) – S(s) + 02(g)
SO3(g) – S(s) + 3/2 O2(g) AH = +195 kJ/mol
AH = +199 kJ/mol
SO3(e) – SO2(g) + 1/2 O2(g)
OA.
2 S(s) + 2 02(g) –→2 SO2(g)
В.
2 S(s) + 5/2 02(g) – SO2(g) + SO3(g)
2502(g) – 25(s) + 202(g)
2 S(s) + 3 02(g) –→2 SO3(g)
OE.
Chapter 9 Solutions
Basic Chemistry
Ch. 9.1 - Calculate the total mass of the reactants and the...Ch. 9.1 - Calculate the total mass of the reactants and the...Ch. 9.2 - Calculate the total mass of the reactants and the...Ch. 9.2 - Write all of the mole-mole factors for each of the...Ch. 9.2 - For the chemical equations in problem 9.3, write...Ch. 9.2 - For the chemical equations in problem 9.4, write...Ch. 9.2 - The chemical reaction of hydrogen with oxygen...Ch. 9.2 - Ammonia is produced by the chemical reaction of...Ch. 9.2 - Carbon disulfide and carbon monoxide are produced...Ch. 9.2 - In the acetylene torch, acetylene gas burns in...
Ch. 9.3 - Sodium reacts with oxygen to produce sodium oxide....Ch. 9.3 - Nitrogen reacts with hydrogen to produce ammonia....Ch. 9.3 - Ammonia and oxygen react to form nitrogen and...Ch. 9.3 - Iron(III) oxide reacts with carbon to give iron...Ch. 9.3 - Prob. 15PPCh. 9.3 - Calcium cyanamide, CaCN2 , reacts with water to...Ch. 9.3 - Prob. 17PPCh. 9.3 - Prob. 18PPCh. 9.4 - A taxi company has 10 taxis. a. On a certain day,...Ch. 9.4 - Prob. 20PPCh. 9.4 - Prob. 21PPCh. 9.4 - Iron and oxygen react to form iron(III) oxide....Ch. 9.4 - For each of the following reactions, 20.0 g of...Ch. 9.4 - For each of the following reactions, 20.0 g of...Ch. 9.4 - For each of the following reactions, calculate the...Ch. 9.4 - For each of the following reactions, calculate the...Ch. 9.5 - Carbon disulfide is produced by the reaction of...Ch. 9.5 - Iron (III) oxide reacts with carbon monoxide to...Ch. 9.5 - Aluminum reacts with oxygen to produce aluminum...Ch. 9.5 - Propane ( C3H8 ) bums in oxygen to produce carbon...Ch. 9.5 - Prob. 31PPCh. 9.5 - When 56.6 g of calcium is reacted with nitrogen...Ch. 9.6 - In an exothermic reaction, is the energy of the...Ch. 9.6 - In an endothermic reaction, is the energy of the...Ch. 9.6 - Prob. 35PPCh. 9.6 - Prob. 36PPCh. 9.6 - Classify each of the following as exothermic or...Ch. 9.6 - Classify each of the following as exothermic or...Ch. 9.6 - Prob. 39PPCh. 9.6 - a. How many kilojoules are released when 75.0 g of...Ch. 9.6 - Prob. 41PPCh. 9.6 - Calculate the energy change for the reaction...Ch. 9.6 - Prob. 43PPCh. 9.6 - Prob. 44PPCh. 9.6 - In one step in the synthesis of the insecticide...Ch. 9.6 - Another widely used insecticide is carbofuran...Ch. 9 - The chapter sections lo review are shown in...Ch. 9 - The chapter sections lo review are shown in...Ch. 9 - The chapter sections lo review are shown in...Ch. 9 - The chapter sections lo review are shown in...Ch. 9 - The chapter sections lo review are shown in...Ch. 9 - The chapter sections lo review are shown in...Ch. 9 - The chapter sections lo review are shown in...Ch. 9 - The chapter sections lo review are shown in...Ch. 9 - Prob. 55APPCh. 9 - Prob. 56APPCh. 9 - Prob. 57APPCh. 9 - Prob. 58APPCh. 9 - Prob. 59APPCh. 9 - Prob. 60APPCh. 9 - Pentane gas ( C5H12 ) reacts with oxygen to...Ch. 9 - Prob. 62APPCh. 9 - Prob. 63APPCh. 9 - Prob. 64APPCh. 9 - Prob. 65APPCh. 9 - Prob. 66APPCh. 9 - Prob. 67APPCh. 9 - Prob. 68APPCh. 9 - Prob. 69APPCh. 9 - The equation for the reaction of iron and oxygen...Ch. 9 - Prob. 71APPCh. 9 - Prob. 72APPCh. 9 - Prob. 73CPCh. 9 - Prob. 74CPCh. 9 - Prob. 75CPCh. 9 - The following problems are related to the topics...Ch. 9 - Prob. 77CPCh. 9 - Prob. 78CPCh. 9 - Prob. 79CPCh. 9 - Prob. 80CPCh. 9 - The following problems are related to the topics...Ch. 9 - Prob. 82CPCh. 9 - Prob. 83CPCh. 9 - The following problems are related to the topics...Ch. 9 - Prob. 85CPCh. 9 - Prob. 86CP
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- Chlorine dioxide, ClO2, is a reddish yellow gas used in bleaching paper pulp. The average speed of a ClO2 molecule at 25C is 306 m/s. What is the kinetic energy (in joules) of a ClO2 molecule moving at this speed?arrow_forward33.9 Given the following two reactions and their enthalpy changes, 2 ClO2 (g) --> Cl2 (g) + 2 O2 (g) Delta H = – 204 kJ 2 TiCl4 (l) + 2 O2 (g) --> 2 TiO2 (s) + 4 Cl2 Delta H = – 139.8 kJ What is the value of the enthalpy change for the reaction that is the sum of these two reactions? 2 ClO2 (g) + 2 TiCl4 (l) --> 2 TiO2 (s) + 5 Cl2 Delta H = ? Select one: a. – 64 kJ b. – 344 kJ c. 64.2 kJ d. 64 kJ e. 344 kJ f. – 204 kJ g. none of thesearrow_forward8. The equation below represents the burning of carbon disulfide, CS20 in a calorimeter. CS20) + 302(g) → CO2(g) + 2SO2(g) + 1690 kJ What mass of CS20 must have burned to increase the temperature of 1.0 kg of water by 15.5°C? [2.92g] n 1471 m -0.967arrow_forward
- Additional Activities Ethylene, a colorless gas with the formula C,Ha is formed from the reaction of calcium carbide with excess water. This gas is a plant hormone which is responsible for the ripening of fruits. It is also a combustible gas. Assuming that the reaction is complete, how many grams of water is produced when 56 grams of ethylene gas reacts with excess oxygen gas? (MMrthylenej: 26 g/mol] (MMwater): 18 g/mol). Write your answers in a separate sheet of paper. Solution:arrow_forwardCombustion reactions involve reacting a substance with oxygen. When compounds containing carbon and hydrogen are combusted, carbon dioxide and water are the products. Using the enthalpies of combustion for C4H4 (– 2341 kJ/mol), C4H3 (- 2755 kJ/mol), and H2 (- 286 kJ/mol), calculate AH for the reaction. САНа (9) + 2 Нэ(9) —> C4H8 (9) ΔΗ kJarrow_forwardHelp mearrow_forward
- Water can undergo a decomposition reaction, as shown in the following balanced equation. 2H2O(g) → 2H2(g) + O2(g) How many grams of oxygen gas O2 will be formed by the decomposition of 72.0 g of water vapor (H2O)? Show all work. (5 marks) (1) balance equation, list Givens, and Molar mass (M) 2 H2O(g) → 2 H2(g) + O2(g) m = 72.0 g _______ = m M = _______ _______ = M n = _______ _______ = n (2) convert mass of given (m) to amount of given (n) ***Use molar mass (M) (3) convert the amount of given (n) to the amount of required. ***Use mole ratios (4) convert the amount of required substance to required mass ***Use molar mass (M)arrow_forward11. A car has been fitted with an internal combustion engine that uses ethane as a fuel, which undergoes the following reaction when combusted: 2C2H6(g) + 702(g) → 4CO2(g) + 6H2O(g). Ethane (C2H6) has a molecular weight of 30.1 g/mol and a heat of reaction of -2,855.4 kJ/mol at 25°C. What is the AS° for this reaction at 25°C?arrow_forwardGiven the following reaction, how much energy would be produced if 3.59 L of oxygen gas reacted with excess C2H5OH @ STP? C2H5OH (g) + 3 O2 (g) ⟶ 2 CO2 (g) + 3 H2O (l) ΔH = -1020 kJarrow_forward
- a. Hydrogen cyanide is used in the manufacture of clear plastics such as Lucite and Plexiglas. It is prepared from ammonia and natural gas (CH4). 2NH3 (g) + 302 (9) + 2CH4 (g) → 2HCN(g) + 6H2O The reaction evolves 939 kJ of heat per 2 mol HCN formed. Is the reaction endothermic or exothermic? endothermic exothermic b. If 8 mol of HCN is produced, what is the value of q? kJarrow_forwardGiven the following reactions: Reaction # 1 2 3 4 Reaction A(s) + 3B(g) → 3C(g) + D(g) 2E(s) + 3F₂(g) → D(g) F₂(g) + C(g) B(1) B(1)→ B(g) →>> ΔΗ 2,046 29 -289 37 Calculate the enthalpy (in kJ) of the following reaction using Hess' Law: 4E(s) + 3C(g) → 2A(s) Round your answer to the nearest kJ.arrow_forwardNitroglycerine is a powerful explosive forming N2, O2, CO2 and H2O vapor when detonated. In addition, 6.26 kJ of heat is given off per gram of nitroglycerine detonated. A) Balance the equation shown below. C3H5(NO3)3 (l) yields N2 (g) + O2 (g) + CO2 (g) + H2O (g) , delta H =? B) What is the delta H (kJ/mol) of nitroglycerinearrow_forward
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