Chemistry by OpenStax (2015-05-04) 1st Edition
ISBN: 9781938168390
Author: Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher: Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
1 Essential Ideas 2 Atoms, Molecules, And Ions 3 Composition Of Substances And Solutions 4 Stoichiometry Of Chemical Reactions 5 Thermochemistry 6 Electronic Structure And Periodic Properties Of Elements 7 Chemical Bonding And Molecular Geometry 8 Advanced Theories Of Covalent Bonding 9 Gases 10 Liquids And Solids 11 Solutions And Colloids 12 Kinetics 13 Fundamental Equilibrium Concepts 14 Acid-base Equilibria 15 Equilibria Of Other Reaction Classes 16 Thermodynamics 17 Electrochemistry 18 Representative Metals, Metalloids, And Nonmetals 19 Transition Metals And Coordination Chemistry 20 Organic Chemistry 21 Nuclear Chemistry Chapter3: Composition Of Substances And Solutions
Chapter Questions Section: Chapter Questions
Problem 1E: What is the total mass (amu) of carbon in each of the following molecules? CH4 CHCl3 C12H12O6... Problem 2E: What is the total mass of hydrogen in each of the molecules? CH4 CHCl3 C12H10O6 CH3CH2CH2CH2CH3 Problem 3E: Calculate the molecular or formula mass of each of the following: P4 H2O Ca( NO3)2 CH3CO2H (acetic... Problem 4E: Determine the molecular mass of the following compounds: Problem 5E: Determine the molecular mass of the following compounds: Problem 6E: Which molecule has a molecular mass of 28.05 amu? Problem 7E: Write a sentence that describes how to determine the number of moles of a compound in a known mass... Problem 8E: Compare 1 mole of H2, 1 mole of O2, and 1 mole of F2. Which has the largest number of molecules?... Problem 9E: Which contains the greatest mass of oxygen: 0.75 mol of ethanol (C2H5OH), 0.60 mol of formic acid... Problem 10E: Which contains the greatest number of moles of oxygen atoms: 1 mol of ethanol (C2H5OH), 1 mol of... Problem 11E: How are the molecular mass and the molar mass of a compound similar and how are they different? Problem 12E: Calculate the molar mass of each of the following compounds: hydrogen fluoride, HF ammonia, NH3... Problem 13E: Calculate the molar mass of each of the following: S8 C5H12 Sc2( SO4)3 CH3COCH3 (acetone) C6H12O6... Problem 14E: Calculate the empirical or molecular formula mass and the molar mass of each of the following... Problem 15E: Calculate the molar mass of each of the following: the anesthetic halothane, C2HBrClF3 the herbicide... Problem 16E: Determine the number of moles of compound and the number of moles of each type of atom in each of... Problem 17E: Determine the mass of each of the following: 0.0 146 mol KOH 10.2 mol ethane, C2H6 1.6103 mol Na2... Problem 18E: Determine the number of moles of the compound and determine the number of moles of each type of atom... Problem 19E: Determine the mass of each of the following: 2.345 mol LiCl 0.0872 mol acetylene, C2H2 3.3102 mol... Problem 20E: The approximate minimum daily dietary requirement of the amino acid leucine, C6H13NO2, is 1.1 g.... Problem 21E: Determine the mass in grams of each of the following: 0.600 mol of oxygen atoms 0.600 mol of oxygen... Problem 22E: A 55-kg woman has 7.5103 mol of hemoglobin (molar mass = 64,456 g/mol) in her blood. How many... Problem 23E: Determine the number of atoms and the mass of zirconium, silicon, and oxygen found in 0.3384 mol of... Problem 24E: Determine which of the following contains the greatest mass of hydrogen: 1 mol of CH4, 0.6 mol of... Problem 25E: Determine which of the following contains the greatest mass of aluminum: 122 g of AIPO4, 266 g of... Problem 26E: Diamond is one form of elemental carbon. An engagement ring contains a diamond weighing 1.25 carats... Problem 27E: The Cullinan diamond was the largest natural diamond ever found (January 25, 1905). It weighed 3104... Problem 28E: One 55-gram serving of a particular cereal supplies 270 mg of sodium, 11% of the recommended daily... Problem 29E: A certain nut crunch cereal contains 11.0 grams of sugar (sucrose, C12H22O11) per serving size of... Problem 30E: A tube of toothpaste contains 0.76 g of sodium monofluorophosphate (Na2PO3F) in 100 mL. What mass of... Problem 31E: Which of the following represents the least number of molecules? 20.0 g of H2O (18.02 glmol) 77.0 g... Problem 32E: What information do we need to determine the molecular formula of a compound from the empirical... Problem 33E: Calculate the following to four significant figures: the percent composition of ammonia, NH3 the... Problem 34E: Determine the following to four significant figures: the percent composition of hydrazoic acid, HN3... Problem 35E: Determine the percent ammonia, NH3, in Co( NH3)6Cl3, to three significant figures. Problem 36E: Determine the percent water in CuSO45H2O to three significant figures. Problem 37E: Determine the empirical formulas for compounds with the following percent compositions: 15.8% carbon... Problem 38E: Determine the empirical formulas for compounds with the following percent compositions: 43.6%... Problem 39E: A compound of carbon and hydrogen contains 92.3% C and has a molar mass of 78.1 g/mol. What is its... Problem 40E: Dichioroethane, a compound that is often used for dry cleaning, contains carbon, hydrogen, and... Problem 41E: Determine the empirical and molecular formula for chrysotile asbestos. Chrysotile has the following... Problem 42E: Polymers are large molecules composed of simple units repeated many times. Thus, they often have... Problem 43E: A major textile dye manufacturer developed a new yellow dye. The dye has a percent composition of... Problem 44E: Explain what changes and what stays the same when 1.00 L of a solution of NaCl is diluted to 1.80 L. Problem 45E: What information do we need to calculate the molarity of a sulfuric acid solution? Problem 46E: What does it mean when we say that a 200-mL sample and a 400-mL sample of a solution of salt have... Problem 47E: Determine the molarity for each of the following solutions: (a) 0.444 mol of CoCl2 in 0.654 L of... Problem 48E: Determine the molarity of each of the following solutions: (a) 1.457 mol KCl in 1.500 L of solution... Problem 49E: Consider this question: What is the mass of the solute in 0.500 L of 0.30 M glucose, C6H12O6, used... Problem 50E: Consider this question: What is the mass of solute in 200.0 L of a 1.556-M solution of KBr? (a)... Problem 51E: Calculate the number of moles and the mass of the solute in each of the following solutions: (a)... Problem 52E: Calculate the number of moles and the mass of the solute in each of the following solutions: (a) 325... Problem 53E: Consider this question: What is the molarity of KMnO4 in a solution of 0.0908 g of KMnO4 in 0.500 L... Problem 54E: Consider this question: What is the molarity of HCl if 35.23 mL of a solution of HCl contain 0.3366... Problem 55E: Calculate the molarity of each of the following solutions: (a) 0.195 g of cholesterol, C27H46O, in... Problem 56E: Calculate the molarity of each of the following solutions: (a) 293 g HCl in 666 mL of solution, a... Problem 57E: There is about 1.0 g of calcium, as Ca2+, in LO L of milk. What is the molarity of Ca2+ in milk? Problem 58E: What volume of a 1.00MFe( NO3)3 solution can be diluted to prepare 1.00 L of a solution with a... Problem 59E: If 0.1718 L of a 0.3556-M C3H7OH solution is diluted to a concentration of 0.1222 M, what is the... Problem 60E: If 4.12 L of a 0.850 MH3PO4 solution is be diluted to a volume of 10.00 L, what is the concentration... Problem 61E: What volume of a 0.33MC12H22O11 solution can be diluted to prepare 25 mL of a solution with a... Problem 62E: What is the concentration of the NaCl solution that results when 0.150 L of a 0.556-M solution is... Problem 63E: What is the molarity of the diluted solution when each of the following solutions is diluted to the... Problem 64E: What is the final concentration of the solution produced when 225.5 mL of a 0.09988-M solution of... Problem 65E: A 2.00-L bottle of a solution of concentrated HCl was purchased for the general chemistry... Problem 66E: An experiment in a general chemistry laboratory calls for a 2.00-M solution of HCl. How many mL of... Problem 67E: What volume of a 0.20MK2SO4 solution contains 57 g of K2SO4? Problem 68E: The US Environmental Protection Agency (EPA) places limits on the quantities of toxic substances... Problem 69E: Consider this question: What mass of a concentrated solution of nitric acid (68.0% HNO3 by mass) is... Problem 70E: What mass of a 4.00% NaOH solution by mass contains 15.0 g of NaOH? Problem 71E: What mass of solid NaOH (97.0% NaOH by mass) is required to prepare 1.00 L of a 10.0% solution of... Problem 72E: What mass of HCl is contained in 45.0 mL of an aqueous HCl solution that has a density of 1.19 g... Problem 73E: The hardness of water (hardness count) is usually expressed in parts per million (by mass) of CaCO3,... Problem 74E: The hardness of water (hardness count) is usually expressed in parts per million (by mass) of CaCO3,... Problem 75E: In Canada and the United Kingdom, devices that measure blood glucose levels provide a reading in... Problem 76E: A throat spray is 1.40% by mass phenol, C6H5OH, in water. If the solution has a density of 0.9956... Problem 77E: Copper(I) iodide (CuI) is often added to table salt as a dietary source of iodine. How many moles of... Problem 78E: A cough syrup contains 5.0% ethyl alcohol, C2H5OH, by mass. If the density of the solution is 0.9928... Problem 79E: D5W is a solution used as an intravenous fluid. It is a 5.0% by mass solution of dextrose (C6H12O6)... Problem 80E: Find the molarity of a 40.0% by mass aqueous solution of sulfuric acid, H2SO4, for which the density... Problem 72E: What mass of HCl is contained in 45.0 mL of an aqueous HCl solution that has a density of 1.19 g...
Related questions
Concept explainers
Write out the limiting reagent calculations for the following hydrohalogenation of an alkyne .
Transcribed Image Text: CI, CI
+
HCI
CHCI3
1
127.01 g/mol
1.05 mL
54.09 g/mol
0.69 g/mL
1.07 g
36.46 g/mol
Definition Definition Organic compounds that contain at least one triple bond between carbon-carbon atoms. The general molecular formula for alkynes with one triple bond is C n H 2n-2 .
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