Principles of Modern Chemistry
Principles of Modern Chemistry
8th Edition
ISBN: 9781305079113
Author: David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher: Cengage Learning
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Chapter 2, Problem 17P

A gaseous binary compound has a vapor density that is 1.94 times that of oxygen at the same temperature and pressure. When 1.39 g of the gas is burned in an excess of oxygen, 1.21 g water is formed, removing all the hydrogen originally present.

(a) Estimate the molecular mass of the gaseous compound.

(b) How many hydrogen atoms are there in a molecule of the compound?

(c) What is the maximum possible value of the atomic mass of the second element in the compound?

(d) Are other values possible for the atomic mass of the second element? Use a table of atomic masses to identify the element that best fits the data.

(e) What is the molecular formula of the compound?

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A gaseous binary compound has a vapor density that is 1.94 times that of oxygen at the same temperature and pressure. When 1.39 g of the gas is burned in an excess of oxygen, 1.21 g water is formed, removing all the hydrogen originally present.(a) Estimate the molecular mass of the gaseous compound.(b) How many hydrogen atoms are there in a molecule ofthe compound?(c) What is the maximum possible value of the atomicmass of the second element in the compound?(d) Are other values possible for the atomic mass of thesecond element? Use a table of atomic masses to identify the element that best fits the data.(e) What is the molecular formula of the compound?
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Chapter 2 Solutions

Principles of Modern Chemistry

Ch. 2 - Barium and nitrogen form two binary compounds...Ch. 2 - Prob. 12PCh. 2 - Prob. 13PCh. 2 - Prob. 14PCh. 2 - The empirical formula of a gaseous fluorocarbon is...Ch. 2 - At its boiling point (280°C) and at atmospheric...Ch. 2 - A gaseous binary compound has a vapor density that...Ch. 2 - A gaseous binary compound has a vapor density that...Ch. 2 - Prob. 19PCh. 2 - Prob. 20PCh. 2 - For each of the following chemical reactions,...Ch. 2 - Prob. 22PCh. 2 - An 18.6-g sample of K2CO3 was treated in such a...Ch. 2 - Prob. 24PCh. 2 - Disilane (Si2H6) is a gas that reacts with oxygen...Ch. 2 - Tetrasilane (Si4H10) is a liquid with a density of...Ch. 2 - Cryolite (Na3AlF6) is used in the production of...Ch. 2 - Carbon disulfide (CS2) is a liquid that is used in...Ch. 2 - Potassium nitrate (KNO3) is used as a fertilizer...Ch. 2 - Elemental phosphorus can be prepared from...Ch. 2 - An element X has a dibromide with the empirical...Ch. 2 - An element A has a triiodide with the formula AI3...Ch. 2 - A mixture consisting of only sodium chloride...Ch. 2 - A mixture of aluminum and iron weighing 9.62 g...Ch. 2 - When ammonia is mixed with hydrogen chloride...Ch. 2 - The poisonous gas hydrogen cyanide (HCN) is...Ch. 2 - The iron oxide Fe2O3 reacts with carbon monoxide...Ch. 2 - Titanium dioxide, TiO2 , reacts with carbon and...Ch. 2 - Human parathormone has the impressive...Ch. 2 - A white oxide of tungsten is 79.2976% tungsten by...Ch. 2 - A dark brown binary compound contains oxygen and...Ch. 2 - A binary compound of nickel and oxygen...Ch. 2 - Two binary oxides of the element manganese...Ch. 2 - A possible practical way to eliminate oxides of...Ch. 2 - Aspartame (molecularformula C14H18N2O5 ) is a...Ch. 2 - Prob. 46APCh. 2 - Prob. 47APCh. 2 - Citric acid (C6H8O7) is made by fermentation of...Ch. 2 - Prob. 49APCh. 2 - A sample of a substance with the empirical formula...Ch. 2 - A newspaper article about the danger of global...Ch. 2 - In the Solvay process for producing sodium...Ch. 2 - A yield of 3.00gKClO4 is obtained from the...Ch. 2 - Prob. 54APCh. 2 - Silicon nitride (Si3N4) , a valuable ceramic, is...
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