Physical Universe
16th Edition
ISBN: 9780077862619
Author: KRAUSKOPF, Konrad B. (konrad Bates), Beiser, Arthur
Publisher: Mcgraw-hill Education,
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 12, Problem 32E
Hydrogen peroxide, H2O2, decomposes into water and oxygen, O2. (a) Write the equation of the process. (b) The total energies of all the bonds in H2O2 and in H2O are, respectively, 1065 and 920 kJ/mol and the bond energy in O2 is 494 kJ/mol. Is the process endothermic or exothermic? (c) What is the net energy absorbed or released in the process per mole of H2O2 decompased?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Chromium(III) oxide reacts with hydrogen sulfide (H2S) gas to form chromium(III) sulfide and water:
Cr2O3(s) + 3H2S(g)→Cr2S3(s) + 3H2O(l)
To produce 681 g ofCr2S3
(a) how many moles ofCr2O3are required?
(b) how many grams ofCr2O3are required?
Hydrogen sulfide is an impurity in natural gas that must beremoved. One common removal method is called the Clausprocess, which relies on the reaction:8 H2S1g2 + 4 O21g2¡S81l2 + 8 H2O1g2Under optimal conditions the Claus process gives 98% yield of S8from H2S. If you started with 30.0 g of H2S and 50.0 g of O2, howmany grams of S8 would be produced, assuming 98% yield?
A 60.0 g of CaC2 reacts with water to produce C2H2 and 81.2 g of Ca(OH)2. The reaction between these two substances are chemically written as:
_______ CaC2 + ______ H2O → _____ C2H2 + _______ Ca(OH)2
Balance the chemical equation.
Calculate the molar mass of CaC2 and Ca(OH)2?
What is the theoretical yield of Ca(OH)2? What is the percent yield of this reaction if the actual yield of Ca(OH)2 exceeds 2.1 g ?
Chapter 12 Solutions
Physical Universe
Ch. 12 - Prob. 1MCCh. 12 - Prob. 2MCCh. 12 - A substance of unknown composition is heated in an...Ch. 12 - Prob. 4MCCh. 12 - Prob. 5MCCh. 12 - Prob. 6MCCh. 12 - Prob. 7MCCh. 12 - Prob. 8MCCh. 12 - Prob. 9MCCh. 12 - Prob. 10MC
Ch. 12 - Prob. 11MCCh. 12 - Prob. 12MCCh. 12 - Prob. 13MCCh. 12 - Prob. 14MCCh. 12 - Prob. 15MCCh. 12 - Prob. 16MCCh. 12 - Prob. 17MCCh. 12 - Prob. 18MCCh. 12 - Prob. 19MCCh. 12 - When an electric current is passed through molten...Ch. 12 - The quantity actually stored in a storage battery...Ch. 12 - Prob. 22MCCh. 12 - Prob. 23MCCh. 12 - Prob. 24MCCh. 12 - Prob. 25MCCh. 12 - The formula mass of gaseous carbon dioxide, CO2,...Ch. 12 - Prob. 27MCCh. 12 - Prob. 28MCCh. 12 - Prob. 29MCCh. 12 - Prob. 30MCCh. 12 - Prob. 31MCCh. 12 - In round numbers the atomic mass of nitrogen is 14...Ch. 12 - Prob. 33MCCh. 12 - Prob. 34MCCh. 12 - Prob. 35MCCh. 12 - Prob. 1ECh. 12 - Prob. 2ECh. 12 - What role does air play in combustion?Ch. 12 - For a given amount of energy to be used for its...Ch. 12 - Prob. 5ECh. 12 - Prob. 6ECh. 12 - How many moles of aluminum are present in 5 mol of...Ch. 12 - How many moles of atomic oxygen are present in 1...Ch. 12 - How many moles of propane, C3H8, can be prepared...Ch. 12 - Prob. 10ECh. 12 - Prob. 11ECh. 12 - Prob. 12ECh. 12 - Find the mass of 10 mol of uranium, U. How many...Ch. 12 - Prob. 14ECh. 12 - Find the mass of 2 mol of iron(III) oxide, Fe2O3.Ch. 12 - Prob. 16ECh. 12 - How many moles of glucose are present in 500 kg of...Ch. 12 - How many moles of lead nitrate are present in 100...Ch. 12 - Prob. 19ECh. 12 - When potassium chlorate, KClO3, is heated, it...Ch. 12 - Prob. 21ECh. 12 - Prob. 22ECh. 12 - How much sulfur is needed to react with 200 g of...Ch. 12 - Prob. 24ECh. 12 - Prob. 25ECh. 12 - Prob. 26ECh. 12 - Prob. 27ECh. 12 - Prob. 28ECh. 12 - Prob. 29ECh. 12 - Do ions in solution need activation energy to...Ch. 12 - Prob. 31ECh. 12 - Hydrogen peroxide, H2O2, decomposes into water and...Ch. 12 - What is the chief reason that reaction rates...Ch. 12 - Prob. 34ECh. 12 - Suggest three ways to increase the rate at which...Ch. 12 - Suggest three ways to increase the rate at which...Ch. 12 - Give an example of a reaction that is (a)...Ch. 12 - Under ordinary circumstances coal burns slowly,...Ch. 12 - Why is a reaction with a high activation energy...Ch. 12 - To what extent does the time needed for a strong...Ch. 12 - How common are reversible chemical reactions?Ch. 12 - Prob. 42ECh. 12 - Changing the pressure has no effect on the...Ch. 12 - Prob. 44ECh. 12 - Prob. 45ECh. 12 - Prob. 46ECh. 12 - Prob. 47ECh. 12 - Prob. 48ECh. 12 - Prob. 49ECh. 12 - Prob. 50ECh. 12 - Prob. 51ECh. 12 - Prob. 52ECh. 12 - When an electric current is passed through a...Ch. 12 - When an electric current is passed through a...Ch. 12 - Prob. 55ECh. 12 - Prob. 56ECh. 12 - What do you think happens when a charging current...Ch. 12 - Prob. 58E
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- Seawater has a salinity of 3.5%, meaning that if you boil away a kilogram of seawater, when you're finished you'll have 35 g of solids (mostly NaCI) left in the pot. When dissolved, sodium chloride dissociates into separate Na+ and CI-ions. Calculate the osmotic pressure difference between seawater and fresh water. Assume for simplicity that all the dissolved salts in seawater are N aCl.arrow_forward(a) A commercial 737 jet transporting 143 passengersand 5 crew members from Kansas City (MCI) to Baltimore (BWI) burned 11,800 lb (about 1700 gallons)of Jet A fuel en route. Jet A fuel is kerosine based,consisting primarily of CnH2n+2 hydrocarbons, withn: 5 6 to 16, so the carbonhydrogen ratio is close to12. During this flight, how much CO2 was releasedinto the atmosphere? Assume the combustion of thefuel was complete, so all the fuel was burned to formCO2 and H2O. Give both the mass of CO2 produced(in kg and in lbs) and the volume it would occupy at298 K, 1 atm.(b) How much CO2 would be released into the atmosphere if those passengers and crew made the tripinstead, in pairs, in hybrid cars at 40 miles per gallon.Assume the density of the gasoline is 0.75 kg L21andthat carbon and hydrogen dominate the compositionin a ratio of 1:2. The road trip is 1082 miles.arrow_forwardUse the data provided for tert-Butyl hydroperoxide, AIBN, and Potassium persulfate. a) Plot the relationships between kd (s-1) and T (Kelvin) for each compound. b) Using an Arrhenius fit, what is the activation energy of decomposition for these initiators c) What is the half-life (in hours) of each compound at the highest temperature data point given Need part C please, but if all can be done it would be appreciatedarrow_forward
- How many moles of atoms are present in 1 mole of water?arrow_forwardBased on the following equation what is the heat of formation, AHf", for H2O(1) * 2 H,(g) + O,(g) → 2 H,0(1) + 136.6 kcal -68.3 kcal +68.3 kcal -136.6 kcal +136.6 kcal The thermochemical reaction for the decomposition of nitrogen dioxide is shown below. What is the heat of formation, AHF°, of nitrogen dioxide, NO2(g) * 2 NO,(g) -IN,(g) + 2 O,(g) + 16.2 kcal -16.2 kcal O +16.2 kcal O +8.1 kcal O -8.1 kcalarrow_forwardQ1: The following reactions were found to occur while trying to make a desired product B A B -TAI=K₁AC₁ A-X -TA2 = K₂A CA A+X-Y -TA3=K3A CACX Species X and Y are both foul pollutants a) What is the point selectivity of B with respect to the foul pollutants X and Y? Plot the point selectivity as function of CA (CAo=1 M) at 300 K. b) How would you carry out this reaction to maximize the formation of B (type of reactor preferred)? Just give a recommendation based on (a). Additional Information -10,000/T KIA =.5 e min Tin degrees Kelvin -20,000/T K2A = 50 e min T in degrees Kelvin min¹, T in degrees Kelvin K3A = 100 e 5,000/Tarrow_forward
- A chemical engineer must calculate the maximum safe operating temperature of a high-pressure gas reaction vessel. The vessel is a stainless-steel cylinder that measures 25.0cm wide and 30.0cm high. The maximum safe pressure inside the vessel has been measured to be 7.10MPa.For a certain reaction the vessel may contain up to 1.68kg of sulfur tetrafluoride gas. Calculate the maximum safe operating temperature the engineer should recommend for this reaction. Write your answer in degrees Celsius. Round your answer to 3 significant digits.arrow_forwardA) What is an equation to equate KE and GPE? B) A gas is held in a container of 15 m^3 in volume and a pressure of 5 Pa. If the volume isincreased to 26 m^3 what is the pressure of the gas? c)A syringe has a volume of 5 cm^3 and a temperature of 300 k. Upon heating the syringeexpands to a volume is now 5.5cm^3, what is the temperature of the syringe?arrow_forwardThe molar solubility of calcium chloride is about four times greater than the molar solubility of barium chloride. Provide an explanation in termsof (i) HSAB concept and (ii) thermodynamic factors.arrow_forward
- Thank youarrow_forward: P Note: You may assume you have an excess of either reactant if the reaction requires more than one of those molecules to form the products. In the drawing area below, draw the skeletal ("line") structures of the missing organic products X and Y. You may draw the structures in any arrangement that you like, so long as they aren't touching. H+ H+ + -OH ☑ Y Predict the organic products that form in the reaction below: Click and drag to start drawing a structure.arrow_forwardyeasts are able to produce high internal concentrations of glycerol to counteract the osmotic pressure of the surrounding media. suppose that a sample of yeast cells were placed in a 4% sodium chloride solution by weight. The density of solution is at 25 C = 1.02 g/ml, Molecular weight of solute = 58.44 g/mol, i of glycerol = 1 R=0.08205 L-atm/mol-K What is the weight of solute (in grams)? What is the moles of solute? What is the volume of the solution (in liters)? What is the molarity of the solution? What is the value of the temperature to be used to solve for the osmotic pressure of the solution? What is the osmotic pressure of solution At the same temperature, what will be the molar concentration of glycerol considering the computed osmotic pressure of the solution and the normal osmotic pressure inside a yeast cell of 7.3 atmospheres?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
The Laws of Thermodynamics, Entropy, and Gibbs Free Energy; Author: Professor Dave Explains;https://www.youtube.com/watch?v=8N1BxHgsoOw;License: Standard YouTube License, CC-BY