Mastering Chemistry with Pearson eText -- Standalone Access Card -- for Chemistry: An Introduction to General, Organic, and Biological Chemistry (13th Edition)
13th Edition
ISBN: 9780134553269
Author: Timberlake
Publisher: PEARSON
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1. DDT, an insecticide harmful to fish, birds and humans, is produced by the followingreaction2C6H5Cl + C2HOCl3 → C14H9Cl5 + H2OChlorobenzene Chloral DDTIn a government lab, 1142 g chlorobenzene is reacted with 485 g of chloral.a) What mass of DDT is formed?b) Which reactant is limiting? Which is in excess?c) What mass of the excess reactant is left over?d) If the actual yield of DDT is 200 g, what is the percent yield?2. An element consists of 1.40% of an isotope with mass 203.973 amu, 24.10% of anisotope with mass 205.9745 amu, 22.10% of an isotope with mass 207.9766 amu.Calculate the average atomic mass and identify the element3. Calculate the concentration of all ions present in each of the following solutions ofstrong electrolytesa) 0.100 mol of Ca(NO3)2 in 100 mL of solutionb) 2.5 mol Na2SO4 in 1.28 M of solutionc) 4.00 g K3PO4 in 150.0 mL of solution4. A balloon is filled to a volume of 6.00 x 102 mL at a temperature of 19.0oC . Theballoon is then cooled at constant pressure to…
According to the following reaction, how many grams of mercury will be formed upon the complete reaction of 30.3 grams of mercury(II) oxide ?mercury(II) oxide(s) mercury(l) + oxygen(g) grams mercury
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Chapter 7 Solutions
Mastering Chemistry with Pearson eText -- Standalone Access Card -- for Chemistry: An Introduction to General, Organic, and Biological Chemistry (13th Edition)
Ch. 7.1 - What is a mole?Ch. 7.1 - What is Avogadro’s number?Ch. 7.1 - Calculate each of the following: a. number of C...Ch. 7.1 - Calculate each of the following: a. number of Li...Ch. 7.1 - Calculate each of the following quantities in 200...Ch. 7.1 - Calculate each of the following quantities in...Ch. 7.1 - Quinine, C20H24N2O2 , is a component of tonic...Ch. 7.1 - Aluminum sulphate, Al2SO43 , is used in some...Ch. 7.1 - Naproxen, found in Aleve, is used to treat the...Ch. 7.1 - Benadryl is an over-the-counter drug used to treat...
Ch. 7.2 - Calculate the molar mass for each of the...Ch. 7.2 - Calculate the molar mass for each of the...Ch. 7.2 - Calculate the molar mass for each of the...Ch. 7.2 - Calculate the molar mass for each of the...Ch. 7.2 - Calculate the molar mass for each of the...Ch. 7.2 - Calculate the molar mass for each of the...Ch. 7.2 - Calculate the molar mass for each of the...Ch. 7.2 - Calculate the molar mass for each of the...Ch. 7.2 - Calculate the molar mass for each of the...Ch. 7.2 - Calculate the molar mass for each of the...Ch. 7.3 - Calculate the mass, in grams, for each of the...Ch. 7.3 - Calculate the mass, in grams, for each of the...Ch. 7.3 - Calculate the mass, in grams, in 0.150 mole of...Ch. 7.3 - Calculate the mass, in grams, in 2.28 moles of...Ch. 7.3 - Calculate the number of moles in each of the...Ch. 7.3 - Calculate the number of moles in each of the...Ch. 7.3 - Calculate the number of moles in 25.0 g of each of...Ch. 7.3 - Calculate the number of moles in 4.00 g of each of...Ch. 7.3 - Chloroethane, C2H5Cl , is used to diagnose dead...Ch. 7.3 - Allyl sulfide, C3H52S , gives garlic, onions, and...Ch. 7.3 - a. The compound MgSO4 , Epsom salts, is used to...Ch. 7.3 - a. Cyclopropane, C3H6 , is an anesthetic given by...Ch. 7.3 - Dinitrogen oxide (or nitrous oxide), N2O , also...Ch. 7.3 - Chloroform, CHCl3 , was formerly used as an...Ch. 7.4 - Determine whether each of the following chemical...Ch. 7.4 - Determine whether each of the following chemical...Ch. 7.4 - Balance each of the following chemical equations:...Ch. 7.4 - Balance each of the following chemical equations:...Ch. 7.4 - Balance each of the following chemical equations:...Ch. 7.4 - Balance each of the following chemical equations:...Ch. 7.5 - Prob. 7.41PPCh. 7.5 - Prob. 7.42PPCh. 7.5 - Prob. 7.43PPCh. 7.5 - Prob. 7.44PPCh. 7.6 - Prob. 7.45PPCh. 7.6 - Prob. 7.46PPCh. 7.6 - In each of the following, identify the reactant...Ch. 7.6 - In each of the following, identify the reactant...Ch. 7.6 - Prob. 7.49PPCh. 7.6 - Prob. 7.50PPCh. 7.6 - Prob. 7.51PPCh. 7.6 - Prob. 7.52PPCh. 7.7 - Write all of the mole—mole factors for each of the...Ch. 7.7 - Write all of the mole—mole factors for each of the...Ch. 7.7 - The chemical reaction of hydrogen with oxygen...Ch. 7.7 - Ammonia is produced by the chemical reaction of...Ch. 7.7 - Carbon disulfide and carbon monoxide are produced...Ch. 7.7 - In the acetylene torch, acetylene gas C2H2 burns...Ch. 7.8 - Sodium reacts with oxygen to produce sodium oxide....Ch. 7.8 - Nitrogen gas reacts with hydrogen gas to produce...Ch. 7.8 - Ammonia and oxygen react to form nitrogen and...Ch. 7.8 - Iron(III) oxide reacts with carbon to give iron...Ch. 7.8 - Nitrogen dioxide and water react to produce nitric...Ch. 7.8 - Calcium cyanamide, CaCN2 , reads with water to...Ch. 7.8 - When solid lead(II) sulfide reacts with oxygen...Ch. 7.8 - When the gases dihydrogen sulfide and oxygen...Ch. 7.9 - Prob. 7.67PPCh. 7.9 - a. What is measured by the heat of reaction? b. In...Ch. 7.9 - Classify each of the following as exothermic or...Ch. 7.9 - Classify each of the following as exothermic or...Ch. 7.9 - Classify each of the following as exothermic or...Ch. 7.9 - Classify each of the following as exothermic or...Ch. 7.9 - a. What is meant by the rate of a reaction? b. Why...Ch. 7.9 - a. How does a catalyst affect the activation...Ch. 7.9 - Prob. 7.75PPCh. 7.9 - How would each of the following change the rate of...Ch. 7.9 - a. During cellular respiration, aqueous C6H12O6...Ch. 7.9 - Fatty acids undergo reaction with oxygen gas and...Ch. 7 - Prob. 7.79UTCCh. 7 - Using the models of the molecules (black = C,...Ch. 7 - A dandruff shampoo contains dipyrithione,...Ch. 7 - Ibuprofen, an anti-inflammatory drug in Advil, has...Ch. 7 - Prob. 7.83UTCCh. 7 - Balance each of the following by adding...Ch. 7 - Prob. 7.85UTCCh. 7 - Prob. 7.86UTCCh. 7 - If blue spheres represent nitrogen atoms, purple...Ch. 7 - Prob. 7.88UTCCh. 7 - Prob. 7.89UTCCh. 7 - Prob. 7.90UTCCh. 7 - Calculate the molar mass for each of the...Ch. 7 - Calculate the molar mass for each of the...Ch. 7 - How many grams are in 0.150 mole of each of the...Ch. 7 - How many grams are in 2.25 moles of each of the...Ch. 7 - How many moles are in 25.0 g of each of the...Ch. 7 - How many moles are in 4.00 g of each of the...Ch. 7 - Identify the type of reaction for each of the...Ch. 7 - Identify the type of reaction for each of the...Ch. 7 - Prob. 7.99APPCh. 7 - Prob. 7.100APPCh. 7 - Identify each of the following as an oxidation or...Ch. 7 - Identify each of the following as an oxidation or...Ch. 7 - When ammonia NH3 gas reacts with fluorine gas, the...Ch. 7 - When nitrogen dioxide NO2 gas from car exhaust...Ch. 7 - Pentane gas, C5H12 undergoes combustion with...Ch. 7 - Prob. 7.106APPCh. 7 - Prob. 7.107APPCh. 7 - The equation for the formation of nitrogen oxide...Ch. 7 - Prob. 7.109CPCh. 7 - Prob. 7.110CPCh. 7 - Prob. 7.111CPCh. 7 - A toothpaste contains 0.240% by mass sodium...Ch. 7 - Prob. 7.113CPCh. 7 - Prob. 7.114CPCh. 7 - Prob. 7.115CPCh. 7 - Prob. 7.116CP
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- DDT, an insecticide harmful to fish, birds, and humans, is produced by the following reaction: In a government lab, 1142 g of chlorobenzene is reacted with 485 g of chloral. a. What mass of DDT is formed, assuming 100% yield? b. Which reactant is limiting? Which is in excess? c. What mass of the excess reactant is left over? d. If the actual yield of DDT is 200.0 g, what is the percent yield?arrow_forward4.14 The combustion of liquid chloroethylene, C2H3Cl, yields carbon dioxide, steam, and hydrogen chloride gas. (a) Write a balanced equation for the reaction. (b) How many moles of oxygen are required to react with 35.00 g of chloroethylene? (c) If 125.00 g of chloroethylene reacts with an excess of oxygen, how many grams of each product are formed?arrow_forwardSand is mainly silicon dioxide. When sand is heated with an excess of coke (carbon), pure silicon and carbon monoxide are produced. (a) Write a balanced equation for the reaction. (b) How many moles of silicon dioxide are required to form 20.00 g of silicon? (c) How many grams of carbon monoxide are formed when 98.76 g of silicon are produced?arrow_forward
- You know that chemical A reacts with chemical B. You react 10.0 g A with 10.0 g B. What information do you need to determine the amount of product that will be produced? Explain.arrow_forward4.9 Sulfur, S8, combines with oxygen at elevated temperatures to form sulfur dioxide. (a) Write a balanced chemical equation for this reaction. (b) If 200 oxygen molecules are used up in this reaction, how many sulfur molecules react? (c) How many sulfur dioxide molecules are formed in part (b)?arrow_forwardThe reaction of methane and water is one way to prepare hydrogen for use as a fuel: CH4(g) + H2O(g) CO(g) + 3 H2(g) If you begin with 995 g of CH4 and 2510 g of water, (a) Which reactant is the limiting reactant? (b) What is the maximum mass of H2 that can be prepared? (c) What mass of the excess reactant remains when the reaction is completed?arrow_forward
- Hydrogen cyanide, HCN, can be made by a two-step process. First, ammonia is reacted with O2 to give nitric oxide, NO. 4NH3(g)+5O2(g)4NO(g)+6H2O(g) Then nitric oxide is reacted with methane, CH4. 2NO(g)+2CH4(g)2HCN(g)+2H2O(g)+H2(g) When 24.2 g of ammonia and 25.1 g of methane are used, how many grams of hydrogen cyanide can be produced?arrow_forwardAqueous solutions of iron(II) chloride and sodium sulfide react to form iron(II)sulfide and sodium chloride. (a) Write the balanced equation for the reaction. (b) If you combine 40. g each of Na2S and FeCl2, what is the limiting reactant? (c) What mass of FeS is produced? (d) What mass of Na2S or FeCl2 remains after the reaction? (e) What mass of FeCl2 is required to react completely with 40. g of Na2S?arrow_forwardWhen elemental copper is strongly heated with sulfur, a mixture of CuS and Cu2Sis produced. with CuS predominating. :math>Cu(s)+S(s)CuS(s)2Cu(s)+S(s)Cu2S(s) at is the theoretical yield of CuS when 31.8 g of Cu(s) is heated with 50.0 g of S? (Assume only CuS is produced in the reaction.) What is the percent yield of CuS if only 40.0 g of CuS can be isolated from the mixture?arrow_forward
- 4.33 Silicon carbide, an abrasive, is made by the reaction of silicon dioxide with graphite (solid carbon): SiO2+CSiC+CO(balanced?) We mix 150.0 g of SiO2 and 101.5 g of C. If the reaction proceeds as far as possible, which reactant is left over? How much of this reactant remains?arrow_forwardA student mixes magnesium and hydrochloric acid and a chemical reaction occurs, shown in the equation below. ____ Mg + _____ HCl --------> _____ H2 + ______ MgCl a. Balance the chemical equation, then label the reactants and the products. b. What do the coefficients in the chemical equation represent? c. What does it mean if an element or molecule does not have a coefficient? d. How many moles of magnesium would you need for the reaction if you had 2 moles of HCl? e. How many moles of magnesium would you need for the reaction if you had 4 moles of HCl? f. How many moles of hydrogen gas (H2) would be produced if you started with 2 moles of magnesium and 2 moles of hydrochloric acid (HCl)? g. If you started with 2 moles of magnesium and 6 moles of hydrochloric acid (HCl), which one would be your limiting reactant? Which one would be your excess reactant? h. Using the information from part e, how many moles of…arrow_forwardConsider the following balanced chemical reaction: 2 C3H7OH + 9 O2 -----------> 6 CO2 + 8 H2O How many grams of H2O can be produced when 15.00 g of C3H7OH react with 35.00 g of O2?arrow_forward
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