Chemistry & Chemical Reactivity
9th Edition
ISBN: 9781133949640
Author: John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher: Cengage Learning
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Textbook Question
Chapter 2.10, Problem 4RC
Epsom salt is MgSO4 · 7H2O. When heated to 70 to 80°C it loses some, but not all, of its water of hydration. Suppose you heat 2.465 g of Epsom salt to 75°C and find that the mass is now only 1.744 g. What is the formula of the slightly dehydrated salt?
- (a) Mg SO4 · 6H2O
- (b) MgSO4 · 5H2O
- (c) MgSO4 · 4H2O
- (d) MgSO4 · 3H2O
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Chapter 2 Solutions
Chemistry & Chemical Reactivity
Ch. 2.2 - 1. What is the mass of an iron atom with 30...Ch. 2.2 - 1. The mass of an atom of manganese is 54.9380 u....Ch. 2.2 - An atom contains 12 neutrons and has a mass number...Ch. 2.3 - 1. Silver has two isotopes, one with 60 neutrons...Ch. 2.3 - 2. A naturally occurring sample of argon contains...Ch. 2.4 - Verify that the atomic weight of chlorine is...Ch. 2.4 - Neon has three stable isotopes, one with a small...Ch. 2.4 - 1. Which is the more abundant isotope of copper,...Ch. 2.4 - 2. Which of the following is closest to the...Ch. 2.4 - Prob. 3RC
Ch. 2.5 - Prob. 1QCh. 2.5 - Prob. 2QCh. 2.5 - Which of the following elements is a metalloid?...Ch. 2.5 - Prob. 2RCCh. 2.5 - Prob. 3RCCh. 2.5 - Prob. 4RCCh. 2.6 - Prob. 1RCCh. 2.7 - Give the number and identity of the constituent...Ch. 2.7 - (a) Write the formulas of all neutral ionic...Ch. 2.7 - Prob. 1RCCh. 2.7 - Prob. 2RCCh. 2.7 - Prob. 3RCCh. 2.7 - The formula of barium acetate is (a) Ba(CH3CO2)2...Ch. 2.7 - 5. The name of the compound with the formula V2O3...Ch. 2.7 - Which should have the higher melting point, MgO or...Ch. 2.8 - Prob. 1RCCh. 2.8 - Prob. 2RCCh. 2.8 - Prob. 3RCCh. 2.8 - Prob. 4RCCh. 2.9 - The density of gold, Au, is 19.32 g/cm3. What is...Ch. 2.9 - If you have 454 g of citric acid (H3C6H5O7), what...Ch. 2.9 - Prob. 1RCCh. 2.9 - Which of the following contains the largest number...Ch. 2.9 - Which of the following has the largest mass? (a)...Ch. 2.9 - Prob. 4RCCh. 2.9 - Prob. 5RCCh. 2.10 - 1. Express the composition of ammonium carbonate,...Ch. 2.10 - 1. What is the empirical formula of naphthalene,...Ch. 2.10 - Gallium oxide, GaxOy forms when gallium is combine...Ch. 2.10 - Hydrated nickel(II) chloride is a beautiful green,...Ch. 2.10 - Prob. 1QCh. 2.10 - Salvarsan was long thought to be a single...Ch. 2.10 - To determine the density of atmospheric nitrogen....Ch. 2.10 - The density of a mixture of gases may be...Ch. 2.10 - Atmospheric argon is a mixture of three stable...Ch. 2.10 - Given that the density of argon is 1.78 g/L under...Ch. 2.10 - 1. Which of the following hydrocarbons has the...Ch. 2.10 - 2. An organic compound has an empirical formula...Ch. 2.10 - Eugenol is the major component in oil of cloves....Ch. 2.10 - 4. Epsom salt is MgSO4 · 7H2O. When heated to 70...Ch. 2 - Prob. 1PSCh. 2 - Define mass number. What is the difference between...Ch. 2 - An atom has a very small nucleus surrounded by an...Ch. 2 - A gold atom has a radius of 145 pm. 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(a)...Ch. 2 - Cacodyl, a compound containing arsenic, was...Ch. 2 - The action of bacteria on meat and fish produces a...Ch. 2 - In the laboratory you combine 0.125 g of nickel...Ch. 2 - A compound called MMT was once used to boost the...Ch. 2 - Elemental phosphorus is made by heating calcium...Ch. 2 - Chromium is obtained by heating chromium(III)...Ch. 2 - Stibnite, Sb2S3, is a dark gray mineral from which...Ch. 2 - Direct reaction of iodine (I2) and chlorine (Cl2)...Ch. 2 - In a reaction, 2.04 g of vanadium combined with...Ch. 2 - Iron pyrite, often called fools gold, has the...Ch. 2 - Which of the following statements about 57.1 g of...Ch. 2 - The formula of barium molybdate is BaMoO4. 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