Loose Leaf for Chemistry
Loose Leaf for Chemistry
13th Edition
ISBN: 9781260162035
Author: Raymond Chang Dr., Jason Overby Professor
Publisher: McGraw-Hill Education
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Mole Concept
Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can b…
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Chapter 3, Problem 3.141QP
Interpretation Introduction

Interpretation:

The value of x in BaCl2.x H2O when it reacts with sulfuric acid and forms barium sulfate has to be calculated.

Concept Introduction:

Molar mass:

  • Molar mass of a molecule can be calculated from its molecular formula by taking the sum of atomic masses of all the elements present in it.
  • Conversion formula for mass of a molecule into number moles,

Number of moles  =  Mass in grams Molar mass

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Chapter 3 Solutions

Loose Leaf for Chemistry

Ch. 3.1 - The atomic masses of the two stable isotopes of...Ch. 3.1 - There are two stable isotopes of iridium: 191Ir...Ch. 3.1 - The hypothetical element Q occurs as a mixture of...Ch. 3.2 - How many moles of magnesium (Mg) are there in 87.3...Ch. 3.2 - Calculate the number of grams of lead (Pb) in 12.4...Ch. 3.2 - Gold atoms form small clusters containing a fixed...Ch. 3.2 - Determine which of the following contains the...Ch. 3.2 - How many moles of rubidium (Rb) are there in 3.75 ...Ch. 3.2 - What is the mass in grams of 1.68 moles of...Ch. 3.3 - What is the molecular mass of methanol (CH4O)?
Ch. 3.3 - Prob. 6PECh. 3.3 - Prob. 7PECh. 3.3 - Determine the molecular mass and the molar mass of...Ch. 3.3 - What is the mass in grams of 0.382 moles of...Ch. 3.3 - How many oxygen atoms are in 124 g of calcium...Ch. 3.5 - Calculate the percent composition by mass of each...Ch. 3.5 - Determine the empirical formula of a compound...Ch. 3.5 - Prob. 10PECh. 3.5 - Prob. 1RCFCh. 3.5 - Prob. 2RCFCh. 3.5 - Determine the empirical formula of a compound...Ch. 3.6 - A sample of a compound containing boron (B) and...Ch. 3.6 - What is the molecular formula of a compound...Ch. 3.7 - Balance the equation representing the reaction...Ch. 3.7 - Which parts of the equation shown here are...Ch. 3.7 - Prob. 2RCFCh. 3.8 - Methanol (CH3OH) burns in air according to the...Ch. 3.8 - The reaction between nitric oxide (NO) and oxygen...Ch. 3.8 - Which of the following statements is correct for...Ch. 3.8 - Prob. 2RCFCh. 3.8 - At high temperatures, magnesium reacts with...Ch. 3.9 - The reaction between aluminum and iron(III) oxide...Ch. 3.9 - Prob. 16PECh. 3.9 - Aluminum and bromine vigorously react according to...Ch. 3.9 - Consider the following reaction:...Ch. 3.10 - Industrially, vanadium metal, which is used in...Ch. 3.10 - Prob. 1RCFCh. 3.10 - Sulfur trioxide (SO3) is prepared from the...Ch. 3 - What is an atomic mass unit? Why is it necessary...Ch. 3 - What is the mass (in amu) of a carbon-12 atom? Why...Ch. 3 - Explain clearly what is meant by the statement,...Ch. 3 - What information would you need to calculate the...Ch. 3 - The atomic masses of 1735Cl (75.53 percent) 1737Cl...Ch. 3 - The atomic masses of 36Li and 37Li are 6.0151 amu...Ch. 3 - What is the mass in grams of 13.2 amu?Ch. 3 - How many amu are there in 8.4 g?Ch. 3 - Define the term mole. What is the unit for mole in...Ch. 3 - What is the molar mass of an atom? What are the...Ch. 3 - Earths population is about 7.2 billion. Suppose...Ch. 3 - The thickness of a piece of paper is 0.0036 in....Ch. 3 - How many atoms are there in 5.10 moles of sulfur...Ch. 3 - How many moles of cobalt (Co) atoms are there in...Ch. 3 - How many moles of calcium (Ca) atoms are in 77.4 g...Ch. 3 - How many grams of gold (Au) are there in 15.3...Ch. 3 - What is the mass in grams of a single atom of each...Ch. 3 - What is the mass in grams of a single atom of each...Ch. 3 - What is the mass in grams of 1.00 1012 lead (Pb)...Ch. 3 - A modern penny weighs 2.5 g but contains only...Ch. 3 - Which of the following has more atoms: 1.10 g of...Ch. 3 - Which of the following has a greater mass: 2 atoms...Ch. 3 - Calculate the molecular mass or formula mass (in...Ch. 3 - Calculate the molar mass of the following...Ch. 3 - Calculate the molar mass of a compound if 0.372...Ch. 3 - How many molecules of ethane (C2H6) are present in...Ch. 3 - Calculate the number of C, H, and O atoms in 1.50...Ch. 3 - Dimethyl sulfoxide [(CH3)2SO], also called DMSO,...Ch. 3 - Pheromones are a special type of compound secreted...Ch. 3 - The density of water is 1.00 g/mL at 4C. How many...Ch. 3 - Describe the operation of a mass spectrometer.Ch. 3 - Describe how you would determine the isotopic...Ch. 3 - Carbon has two stable isotopes, 612C and 613C, and...Ch. 3 - Hydrogen has two stable isotopes, 11H and 12H, and...Ch. 3 - Use ammonia (NH3) to explain what is meant by the...Ch. 3 - Describe how the knowledge of the percent...Ch. 3 - Tin (Sn) exists in Earths crust as SnO2. Calculate...Ch. 3 - For many years chloroform (CHCl3) was used as an...Ch. 3 - Cinnamic alcohol is used mainly in perfumery,...Ch. 3 - All of the substances listed here are fertilizers...Ch. 3 - The formula for rust can be represented by Fe2O3....Ch. 3 - Tin(II) fluoride (SnF2) is often added to...Ch. 3 - What are the empirical formulas of the compounds...Ch. 3 - What are the empirical formulas of the compounds...Ch. 3 - The anticaking agent added to Morton salt is...Ch. 3 - What does the word empirical in empirical formula...Ch. 3 - If we know the empirical formula of a compound,...Ch. 3 - The empirical formula of a compound is CH. If the...Ch. 3 - The molar mass of caffeine is 194.19 g. 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It is...Ch. 3 - Certain race cars use methanol (CH3OH, also called...Ch. 3 - Calculate the mass in grams of iodine (I2) that...Ch. 3 - How many grams of sulfur (S) are needed to react...Ch. 3 - Prob. 3.69QPCh. 3 - When baking soda (sodium bicarbonate or sodium...Ch. 3 - If chlorine bleach is mixed with other cleaning...Ch. 3 - Fermentation is a complex chemical process of wine...Ch. 3 - Each copper(II) sulfate unit is associated with...Ch. 3 - For many years the recovery of goldthat is, the...Ch. 3 - Limestone (CaCO3) is decomposed by heating to...Ch. 3 - Nitrous oxide (N2O) is also called laughing gas....Ch. 3 - Prob. 3.77QPCh. 3 - A common laboratory preparation of oxygen gas is...Ch. 3 - Prob. 3.79QPCh. 3 - Prob. 3.80QPCh. 3 - Consider the reaction 2A+BC (a)In the diagram here...Ch. 3 - Consider the reaction N2+3H22NH3 Assuming each...Ch. 3 - Nitric oxide (NO) reacts with oxygen gas to form...Ch. 3 - Ammonia and sulfuric acid react to form ammonium...Ch. 3 - Propane (C3H8) is a component of natural gas and...Ch. 3 - Consider the reaction MnO2+4HClMnCl2+Cl2+2H2O If...Ch. 3 - Why is the theoretical yield of a reaction...Ch. 3 - Prob. 3.88QPCh. 3 - Hydrogen fluoride is used in the manufacture of...Ch. 3 - Nitroglycerin (C3H5N3O9) is a powerful explosive....Ch. 3 - Titanium(IV) oxide (TiO2) is a white substance...Ch. 3 - Ethylene (C2H4), an important industrial organic...Ch. 3 - When heated, lithium reacts with nitrogen to form...Ch. 3 - Disulfide dichloride (S2Cl2) is used in the...Ch. 3 - Prob. 3.95QPCh. 3 - Rubidium is used in atomic clocks and other...Ch. 3 - Prob. 3.97QPCh. 3 - Prob. 3.98QPCh. 3 - Prob. 3.99QPCh. 3 - Write balanced equations for the following...Ch. 3 - Industrially, nitric acid is produced by the...Ch. 3 - A sample of a compound of Cl and O reacts with an...Ch. 3 - Prob. 3.103QPCh. 3 - A 26.2-g sample of oxalic acid hydrate (H2C2O4 ...Ch. 3 - Prob. 3.105QPCh. 3 - How many moles of O are needed to combine with...Ch. 3 - Prob. 3.107QPCh. 3 - The aluminum sulfate hydrate [Al2(SO4)3 xH2O]...Ch. 3 - The explosive nitroglycerin (C3H5N3O9) has also...Ch. 3 - Prob. 3.110QPCh. 3 - Prob. 3.111QPCh. 3 - A certain metal oxide has the formula MO, where M...Ch. 3 - Prob. 3.113QPCh. 3 - One of the reactions that occurs in a blast...Ch. 3 - Prob. 3.115QPCh. 3 - Prob. 3.116QPCh. 3 - Prob. 3.117QPCh. 3 - Analysis of a metal chloride XCl3 shows that it...Ch. 3 - Prob. 3.119QPCh. 3 - Myoglobin stores oxygen for metabolic processes in...Ch. 3 - Calculate the number of cations and anions in each...Ch. 3 - Prob. 3.122QPCh. 3 - Prob. 3.123QPCh. 3 - Prob. 3.124QPCh. 3 - Aspirin or acetyl salicylic acid is synthesized by...Ch. 3 - Calculate the percent composition by mass of all...Ch. 3 - Lysine, an essential amino acid in the human body,...Ch. 3 - Prob. 3.128QPCh. 3 - Prob. 3.129QPCh. 3 - Prob. 3.130QPCh. 3 - Prob. 3.131QPCh. 3 - Prob. 3.132QPCh. 3 - Prob. 3.133QPCh. 3 - Prob. 3.134QPCh. 3 - Prob. 3.135QPCh. 3 - Platinum forms two different compounds with...Ch. 3 - Prob. 3.137QPCh. 3 - Prob. 3.138QPCh. 3 - Prob. 3.139QPCh. 3 - A compound X contains 63.3 percent manganese (Mn)...Ch. 3 - Prob. 3.141QPCh. 3 - Prob. 3.142QPCh. 3 - Prob. 3.143QPCh. 3 - Prob. 3.144QPCh. 3 - A mixture of CuSO4 5H2O and MgSO4 7H2O is heated...Ch. 3 - When 0.273 g of Mg is heated strongly in a...Ch. 3 - A mixture of methane (CH4) and ethane (C2H6) of...Ch. 3 - Leaded gasoline contains an additive to prevent...Ch. 3 - Because of its detrimental effect on the...Ch. 3 - Prob. 3.150QPCh. 3 - A certain sample of coal contains 1.6 percent...Ch. 3 - Air is a mixture of many gases. However, in...Ch. 3 - Prob. 3.153QPCh. 3 - Octane (C8H18) is a component of gasoline....Ch. 3 - Industrially, hydrogen gas can be prepared by...Ch. 3 - Prob. 3.157QPCh. 3 - Prob. 3.158QPCh. 3 - Potash is any potassium mineral that is used for...Ch. 3 - Prob. 3.161QPCh. 3 - A certain metal M forms a bromide containing 53.79...Ch. 3 - Prob. 3.163QPCh. 3 - Prob. 3.165QPCh. 3 - Interpreting, Modeling Estimating 3.166While most...Ch. 3 - Without doing any detailed calculations, arrange...Ch. 3 - Consider the reaction 6Li(s)+N2(g)2Li3N(s) Without...Ch. 3 - Estimate how high in miles you can stack up an...Ch. 3 - The following is a crude but effective method for...
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Step by Step Stoichiometry Practice Problems | How to Pass ChemistryMole Conversions Made Easy: How to Convert Between Grams and Moles; Author: Ketzbook;https://www.youtube.com/watch?v=b2raanVWU6c;License: Standard YouTube License, CC-BY