A sample of Ag2O (molar mass-231.7 g/mol) is heated, causing the silver oxide to decompose according to the following equation 2 Ag:O) 4 Ag) + O2(g) If 13.8 mL of gas are collected over water at 19.0°C and 1.00 atm pressure, what is the mass of silver oxide sample? a) 0.055 g b) 0.261 g c) 0.202 g d) 0.159 g e) 0.357 g Vapor pressure of water (mmHg) Temperature (°C) 22223 17 14.5 19 16.5 21 18.7 21.1 25 23.8

A sample of Ag2O (molar mass-231.7 g/mol) is heated, causing the silver oxide to decompose according to the following equation 2 Ag:O) 4 Ag) + O2(g) If 13.8 mL of gas are collected over water at 19.0°C and 1.00 atm pressure, what is the mass of silver oxide sample? a) 0.055 g b) 0.261 g c) 0.202 g d) 0.159 g e) 0.357 g Vapor pressure of water (mmHg) Temperature (°C) 22223 17 14.5 19 16.5 21 18.7 21.1 25 23.8

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter10: Gases And Their Properties

Section: Chapter Questions

Problem 65GQ: What volume (in liters) of O2, measured at standard temperature and pressure, is required to oxidize...

See similar textbooks

Similar questions

How does hydraulic fracturing differ from previously used techniques for the recovery of natural gas from the earth?
In the presence of nitric acid, UO2+ undergoes a redox process. It is converted to UO22+ and nitric oxide (NO) gas is produced according to the following unbalanced equation: H+(aq)+NO3(aq)+UO2+(aq)NO(g)+UO22+(aq)+H2O(l) If 2.55 102 mL NO(g) is isolated at 29C and 1.5 atm, what amount (moles) of UO2+ was used in the reaction? (Hint: Balance the reaction by the oxidation states method.)
You are given 1.56 g of a mixture of KClO3 and KCl. When heated, the KClO3 decomposes to KCl and O2, 2 KClO3(s) 2 KCl(s) + 3 O2(g) and 327 mL of O2 with a pressure of 735 mm Hg is collected at 19 C. What is the weight percentage of KClO3 in the sample?
What possible uses exist for the natural gas liquids that are removed from natural gas during its processing?
Pyruvic acid, HC3H3O3, is involved in cell metabolism. It can be assayed for (that is, the amount of it determined) by using a yeast enzyme. The enzyme makes the following reaction go to completion: HC3H3O3(aq)C2H4O(aq)+CO2(g) If a sample containing pyruvic acid gives 21.2 mL of carbon dioxide gas, CO2, at 349 mmHg and 30C, how many grams of pyruvic acid are there in the sample?
95 Some engineering designs call for the use of compressed air for underground work. If water containing iron(II) ions is present, oxygen in the compressed air may react according to the following unbalanced net ionic equation: Fe2++H++O2Fe3++H2O (a) Write the balanced net ionic equation. Remember that the amounts of each substance and the charges must balance. (b) Assume all of the oxygen from 650 L of compressed air at 15°C and 6.5 atm is lost by this reaction. What mass of water would be produced? (The mole fraction of oxygen in air is about 0.21.) (c) What will be the final pressure after the loss of the oxygen?
105 The decomposition of mercury(II) thiocyanate produces an odd brown snake-like mass that is so unusual the process was once used in fireworks displays. There are actually several reactions that take place when the solid Hg(SCN)2 is ignited: 2Hg(SCN)2(s)2HgS(s)+CS2(s)+C3N4(s)CS2(s)+3O2(g)CO2(g)+2SO2(g)2C3N4(s)3(CN)2(g)+N2(g)HgS(s)+O2(g)Hg(l)+SO2(g) A 42.4-g sample of Hg(SCN)2 is placed into a 2.4-L vessel at 21°C. The vessel also contains air at a pressure of 758 torr. The container is sealed and the mixture is ignited, causing the reaction sequence above to occur. Once the reaction is complete, the container is cooled back to the original temperature of 21°C. (a) Without doing numerical calculations, predict whether the final pressure in the vessel will be greater than, less than, or equal to the initial pressure. Explain your answer. (b) Calculate the final pressure and compare your result with your prediction. (Assume that the mole fraction of O2 in air is 0.21.)
You have a 550.-mL tank of gas with a pressure of 1.56 atm at 24 C. You thought the gas was pure carbon monoxide gas, CO, but you later found it was contaminated by small quantities of gaseous CO2 and O2. Analysis shows that the tank pressure is 1.34 atm (at 24 C) if the CO2 is removed. Another experiment shows that 0.0870 g of O2 can be removed chemically. What are the masses of CO and CO2 in the tank, and what is the partial pressure of each of the three gases at 25 C?
You have two pressure-proof steel cylinders of equal volume, one containing 1.0 kg of CO and the other containing 1.0 kg of acetylene, C2H2. (a) In which cylinder is the pressure greater at 25 C? (b) Which cylinder contains the greater number of molecules?
Nitroglycerin decomposes into four different gases when detonated: 4 C3H5(NO3)3() 6 N2(g) + O2(g) + 12 CO2(g) + 10 H2O(g) The detonation of a small quantity of nitroglycerin produces a total pressure of 4.2 atm at a temperature of 450 C. (a) What is the partial pressure of N2? (b) If the gases occupy a volume of 1.5 L, what mass of nitroglycerin was detonated?
Ammonia gas is synthesized by combining hydrogen and nitrogen: 3 H2(g) + N2(g) 2 NH3(g) (a) If you want to produce 562 g of NH3, what volume of H2 gas, at 56 C and 745 mm Hg, is required? (b) Nitrogen for this reaction will be obtained from air. What volume of air, measured at 29 C and 745 mm Hg pressure, will be required to provide the nitrogen needed to produce 562 g of NH3? Assume the sample of air contains 78.1 mole % N2.
52 If tetraborane, B4H10, is treated with pure oxygen, it burns to give B2O3 and H2O: 2B4H10(s)+11O2(g)4B2O3(s)+10H2O(g) If a 0.050-g sample of tetraborane burns completely in O2, what will be the pressure of the gaseous water in a 4.25-L flask at 30.0 C?