Chemistry
3rd Edition
ISBN: 9780073402734
Author: Julia Burdge
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Question
Chapter 3, Problem 107AP
Interpretation Introduction
Interpretation:
The empirical formula of the givencompound is to be determined.
Concept introduction:
The simplest atomic ratio of the mass of the elements present in a compound is known as the empirical formula of the compound.
The actual atomic ratio of the mass of the elements present in the compound is known as the molecular formula of the compound.
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Dr. Mendel asked his BIOL 260 class what their height was and what their
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12pt v
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Experiment:
Each team will be provided with 5g of a mixture of acetanilide and salicylic acid. You will divide it into three 1.5 g portions in separate 125 mL Erlenmeyer flasks savıng some for melting point analysis. Dissolve the mixture in each flask in ~60mL of DI water by heating to boiling on a hotplate. Take the flasks off the hotplate once you have a clear solution and let them stand on the bench top for 5 mins and then allow them to cool as described below.
Sample A-Let the first sample cool slowly to room temperature by letting it stand on your lab bench, with occasional stirring to promote crystallization.
Sample B-Cool the second sample 1n a tap-water bath to 10-15 °C
Sample C-Cool the third sample in an ice-bath to 0-2 °C
Results:
weight after recrystalization and melting point temp.
A=0.624g,102-115°
B=0.765g, 80-105°
C=1.135g, 77-108
What is the percent yield of A,B, and C.
Chapter 3 Solutions
Chemistry
Ch. 3.1 - Practice ProblemATTEMPT Calculate the molecular or...Ch. 3.1 - Practice Problem BUILD
Calculate the molecular or...Ch. 3.1 - Practice ProblemCONCEPTUALIZE Some...Ch. 3.1 - What is the molecular mass of citric acid ( H 3 C...Ch. 3.1 - 3.1.2 What is the formula mass of calcium citrate...Ch. 3.2 - Practice Problem ATTEMPT
Determine the percent...Ch. 3.2 - Practice Problem BUILD
Determine the simplest...Ch. 3.2 - Practice Problem CONCEPTUALIZE
Determine the...Ch. 3.2 - 3.2.1 What is the percent composition by mass of...Ch. 3.2 - What is the percent composition by mass of sodium...
Ch. 3.3 - Prob. 1PPACh. 3.3 - Practice Problem BUILD
Write and balance the...Ch. 3.3 - Practice ProblemCONCEPTUALIZE Write a balanced...Ch. 3.3 - What are the stoichiometric coefficients in the...Ch. 3.3 - 3.3.2 Which chemical equation represents the...Ch. 3.3 - 3.3.3 Which is the correctly balanced form of the...Ch. 3.3 - 3.3.4 Carbon monoxide reacts with oxygen to...Ch. 3.4 - Prob. 1PPACh. 3.4 - Practice Problem BUILD
Write and balance the...Ch. 3.4 - Prob. 1PPCCh. 3.4 - How many molecules are in 30 .1 g of sulfur...Ch. 3.4 - How many moles of hydrogen are there in 6 .50 g of...Ch. 3.4 - 3.4.3 Determine the empirical formula of a...Ch. 3.4 - Determine the empirical formula of a compound that...Ch. 3.5 - Practice ProblemATTEMPT Potassium is the second...Ch. 3.5 - Practice Problem BUILD
Calculate (a) the number...Ch. 3.5 - Practice Problem CONCEPTUALIZE
These diagrams show...Ch. 3.5 - What is the empirical formula of a compound...Ch. 3.5 - 3.5.2 What are the empirical and molecular...Ch. 3.5 - 3.5.3 Determine the masses of and produced by...Ch. 3.5 - How is it possible for the combined masses of CO 2...Ch. 3.6 - Prob. 1PPACh. 3.6 - Practice Problem BUILD
(a) Determine the mass of...Ch. 3.6 - Practice ProblemCONCEPTUALIZE Plain doughnuts from...Ch. 3.6 - 3.6.1 How many moles of will be produced if Li...Ch. 3.6 - 3.6.2 Determine the stoichiometric amount (in...Ch. 3.7 - Prob. 1PPACh. 3.7 - Practice ProblemBUILD (a) Determine the number of...Ch. 3.7 - Practice ProblemCONCEPTUALIZE A particular...Ch. 3.7 - 3.7.1 What mass of is produced according to the...Ch. 3.7 - 3.7.2 What is the percent yield for a process in...Ch. 3.7 - How many moles of NH 3 can be produced by the...Ch. 3.7 - What mass of water is produced by the reaction of...Ch. 3.7 - Reactants A (red) and B (blue) combine to form a...Ch. 3.7 - Which of the following represents the contents of...Ch. 3.8 - Practice ProblemATTEMPT Determine the empirical...Ch. 3.8 - Practice ProblemBUILD Determine the empirical...Ch. 3.8 - Practice ProblemCONCEPTUALIZE What is the smallest...Ch. 3.9 - Practice ProblemATTEMPT The combustion of a 28...Ch. 3.9 - Practice ProblemBUILD Determine the mass of CO 2...Ch. 3.9 - Prob. 1PPCCh. 3.10 - Prob. 1PPACh. 3.10 - Prob. 1PPBCh. 3.10 - Prob. 1PPCCh. 3.11 - Practice ProblemATTEMPT Calculate the mass of...Ch. 3.11 - Practice Problem BUILD
What mass of glucose must...Ch. 3.11 - Prob. 1PPCCh. 3.12 - Prob. 1PPACh. 3.12 - Prob. 1PPBCh. 3.12 - Practice ProblemCONCEPTUALIZE The diagrams show a...Ch. 3.13 - Prob. 1PPACh. 3.13 - Practice Problem BUILD
What mass of ether will be...Ch. 3.13 - Prob. 1PPCCh. 3.14 - Prob. 1PPACh. 3.14 - Practice Problem BUILD
Using the chemical species...Ch. 3.14 - Prob. 1PPCCh. 3 - 3.1
Calculate the mass of water produced in the...Ch. 3 - 3.2
How much can be produced?
(a)
350.0...Ch. 3 - 3.3
How much can be produced?
(a)
91.51...Ch. 3 - 3.4
How much of the excess reactant remains when...Ch. 3 - What is meant by the term molecular mass, and why...Ch. 3 - Explain the difference between the terms molecular...Ch. 3 - Calculate the molecular mass (in amu) of each of...Ch. 3 - Calculate the molecular mass (in amu) of each of...Ch. 3 - Calculate the molecular mass or formula mass (in...Ch. 3 - 3.6 Calculate the molecular mass or formula mass...Ch. 3 - 3.7 Use ammonia to explain what is meant by the...Ch. 3 - 3.8 Describe how the knowledge of the percent...Ch. 3 - Tin (Sn) exists in Earth's crust as SnO 2 ....Ch. 3 - 3.10 For many years, chloroform was used as an...Ch. 3 - All the substances listed here are fertilizers...Ch. 3 - Limonene. shown here, is a by-product of the...Ch. 3 - 3.13 Tooth enamel is . Calculate the percent...Ch. 3 - A four-pack of Red Bull Energy Drink consists of...Ch. 3 - 3.15 A “variety pack" of ramen noodles consists of...Ch. 3 - Prob. 16QPCh. 3 - Prob. 17QPCh. 3 - 3.18 Why must a chemical equation be balanced?...Ch. 3 - Prob. 19QPCh. 3 - Write an unbalanced equation to represent each of...Ch. 3 - Write an unbalanced equation to represent each of...Ch. 3 - Prob. 22QPCh. 3 - For each of the following unbalanced chemical...Ch. 3 - Prob. 24QPCh. 3 - Prob. 25QPCh. 3 - Which of the following equations best represents...Ch. 3 - Prob. 27QPCh. 3 - Define the term mole. What is the unit for mole in...Ch. 3 - Prob. 29QPCh. 3 - Prob. 30QPCh. 3 - If we know the empirical formula of a compound,...Ch. 3 - Prob. 32QPCh. 3 - The thickness of a piece of paper is 0.0036 in....Ch. 3 - Prob. 34QPCh. 3 - Prob. 35QPCh. 3 - Prob. 36QPCh. 3 - How many grams of gold ( Au ) are there in 15.3...Ch. 3 - Prob. 38QPCh. 3 - Prob. 39QPCh. 3 - 3.40 What is the mass in grams of lead atoms?
Ch. 3 - Prob. 41QPCh. 3 - Prob. 42QPCh. 3 - Which of the following has a greater mass: two...Ch. 3 - Prob. 44QPCh. 3 - Prob. 45QPCh. 3 - Prob. 46QPCh. 3 - Prob. 47QPCh. 3 - Prob. 48QPCh. 3 - Prob. 49QPCh. 3 - Prob. 50QPCh. 3 - Prob. 51QPCh. 3 - Prob. 52QPCh. 3 - Prob. 53QPCh. 3 - Prob. 54QPCh. 3 - Prob. 55QPCh. 3 - Prob. 56QPCh. 3 - Prob. 57QPCh. 3 - Prob. 58QPCh. 3 - In response to invasion by a microorganism, the...Ch. 3 - Researchers recently reported that the compound in...Ch. 3 - Prob. 61QPCh. 3 - Prob. 62QPCh. 3 - 3.63 Menthol is a flavoring agent extracted from...Ch. 3 - 3.64 Ascorbic acid (vitamin C) contains C, H, and...Ch. 3 - The amino acid cysteine plays an important role in...Ch. 3 - 3.66 The diagram shows the products of a...Ch. 3 - 3.67 Which of the following diagrams could...Ch. 3 - 3.68 On what law is stoichiometry based? Why is it...Ch. 3 - Prob. 69QPCh. 3 - Prob. 70QPCh. 3 - Prob. 71QPCh. 3 - Prob. 72QPCh. 3 - Prob. 73QPCh. 3 - Prob. 74QPCh. 3 - 3.75 When baking soda (sodium bicarbonate or...Ch. 3 - Prob. 76QPCh. 3 - Prob. 77QPCh. 3 - Prob. 78QPCh. 3 - Prob. 79QPCh. 3 - Prob. 80QPCh. 3 - Prob. 81QPCh. 3 - Prob. 82QPCh. 3 - Prob. 83QPCh. 3 - Prob. 84QPCh. 3 - Prob. 85QPCh. 3 - Prob. 86QPCh. 3 - Prob. 87QPCh. 3 - Prob. 88QPCh. 3 - Prob. 89QPCh. 3 - Prob. 90QPCh. 3 - Nitroglycerin ( C 3 H 5 N 3 O 9 ) is a powerful...Ch. 3 - Prob. 92QPCh. 3 - Prob. 93QPCh. 3 - Prob. 94QPCh. 3 - Prob. 95QPCh. 3 - Prob. 96QPCh. 3 - Prob. 97QPCh. 3 - Prob. 98QPCh. 3 - Consider the reaction N 2 +3H 2 → 2NH 3 Assuming...Ch. 3 - 3.104 Determine whether each of the following...Ch. 3 - Prob. 101QPCh. 3 - Prob. 102APCh. 3 - Prob. 103APCh. 3 - Prob. 104APCh. 3 - Prob. 105APCh. 3 - Prob. 106APCh. 3 - Prob. 107APCh. 3 - 3.112 The carat is the unit of mass used by...Ch. 3 - An iron bar weighed 664 g. After the bar had been...Ch. 3 - Prob. 110APCh. 3 - Suppose you are given a cube made of magnesium...Ch. 3 - Prob. 112APCh. 3 - Prob. 113APCh. 3 - Prob. 114APCh. 3 - Calculate the number of cations and anions in each...Ch. 3 - Prob. 116APCh. 3 - 3.121 Avogadro’s number has sometimes been...Ch. 3 - Prob. 118APCh. 3 - In the formation of carbon monoxide. CO, it is...Ch. 3 - Prob. 120APCh. 3 - Prob. 121APCh. 3 - A compound made up of C, H, and Cl contains 55.0...Ch. 3 - Prob. 123APCh. 3 - Prob. 124APCh. 3 - Prob. 125APCh. 3 - Prob. 126APCh. 3 - Prob. 127APCh. 3 - 3.132 A mixture of methane and ethane of mass...Ch. 3 - Prob. 129APCh. 3 - A die has an edge length of 1.5 cm. (a) What is...Ch. 3 - Prob. 131APCh. 3 - Prob. 132APCh. 3 - A sample containing NaCl, Na 2 SO 4 , and NaNO 3...Ch. 3 - Prob. 134APCh. 3 - Prob. 135APCh. 3 - Prob. 136APCh. 3 - An impure sample of zinc (Zn) is treated with an...Ch. 3 - One of the reactions that occurs in a blast...Ch. 3 - Prob. 139APCh. 3 - Prob. 140APCh. 3 - Prob. 141APCh. 3 - 3.146 Aspirin or acetylsalicylic acid is...Ch. 3 - Prob. 143APCh. 3 - Prob. 144APCh. 3 - Lysine, an essential amino acid in the human body,...Ch. 3 - Prob. 146APCh. 3 - Prob. 147APCh. 3 - Prob. 148APCh. 3 - Prob. 149APCh. 3 - Cysteine, shown here, is one of the 20 amino acids...Ch. 3 - Prob. 151APCh. 3 - Carbon dioxide ( CO 2 ) is the gas that is mainly...Ch. 3 - Prob. 153APCh. 3 - Prob. 154APCh. 3 - Prob. 155APCh. 3 - Prob. 156APCh. 3 - 3.161 Potash is any potassium mineral that is used...Ch. 3 - Prob. 158APCh. 3 - Prob. 159APCh. 3 - Prob. 160APCh. 3 - Prob. 1SEPPCh. 3 - Prob. 2SEPPCh. 3 - Prob. 3SEPPCh. 3 - Prob. 4SEPP
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