Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN: 9781938168390
Author: Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher: OpenStax
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Textbook Question
Chapter 4, Problem 74E
How many molecules of
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Unshared, or lone, electron pairs play an important role in determining the chemical and physical properties of organic compounds.
Thus, it is important to know which atoms carry unshared pairs.
Use the structural formulas below to determine the number of unshared pairs at each designated atom.
Be sure your answers are consistent with the formal charges on the formulas.
CH.
H₂
fo
H2
H
The number of unshared pairs at atom a is
The number of unshared pairs at atom b is
The number of unshared pairs at atom c is
HC
HC
HC
CH
The number of unshared pairs at atom a is
The number of unshared pairs at atom b is
The number of unshared pairs at atom c is
Draw curved arrows for the following reaction step.
Arrow-pushing Instructions
CH3
CH3 H
H-O-H
+/
H3C-C+
H3C-C-0:
CH3
CH3 H
Chapter 4 Solutions
Chemistry by OpenStax (2015-05-04)
Ch. 4 - What does it mean to say an equation is balanced?...Ch. 4 - Consider molecular, complete ionic, and net ionic...Ch. 4 - Balance the following equations: (a)...Ch. 4 - Balance the following equations: (a)...Ch. 4 - Write a balanced molecular equation describing...Ch. 4 - Write a balanced equation describing each of the...Ch. 4 - Colorful fireworks often involve the decomposition...Ch. 4 - Fill in the blank with a single chemical formula...Ch. 4 - Aqueous hydrogen fluoride (hydrofluoric acid) is...Ch. 4 - A novel process for obtaining magnesium from sea...
Ch. 4 - From the balanced molecular equations, write the...Ch. 4 - Use the following equations to answer the next...Ch. 4 - Indicate what type, or types, of reaction each of...Ch. 4 - Indicate what type, or types, of reaction each of...Ch. 4 - Silver can be separated from gold because silver...Ch. 4 - Determine the oxidation states of the elements in...Ch. 4 - Determine the oxidation states of the elements in...Ch. 4 - Determine the oxidation states of the elements in...Ch. 4 - Classify the following as acid-base reactions or...Ch. 4 - Identify the atoms that are oxidized and reduced,...Ch. 4 - Complete and balance the following acid-base...Ch. 4 - Complete and balance the following acid-base...Ch. 4 - Complete and balance the following...Ch. 4 - Complete and balance the following...Ch. 4 - Complete and balance the equations for the...Ch. 4 - When heated to 700—800 C, diamonds, which are pure...Ch. 4 - The military has experimented with lasers that...Ch. 4 - Write the molecular, total ionic, and net ionic...Ch. 4 - Great Lakes Chemical Company produces bromine,...Ch. 4 - In a common experiment in the general chemistry...Ch. 4 - Lithium hydroxide may be used to absorb carbon...Ch. 4 - Calcium propionate is sometimes added to bread to...Ch. 4 - Complete and balance the equations of the...Ch. 4 - Copper(II) sulfide is oxidized by molecular oxygen...Ch. 4 - Write balanced chemical equations for the...Ch. 4 - Calcium cyclamate Ca(C6H 11 NHSO3)2 is an...Ch. 4 - Complete and balance each of the following...Ch. 4 - Complete and balance each of the following...Ch. 4 - Balance each of the following equations according...Ch. 4 - Balance each of the following equations according...Ch. 4 - Balance each of the following equations according...Ch. 4 - Write the balanced equation, then outline the...Ch. 4 - Write the balanced equation, then outline the...Ch. 4 - Write the balanced equation, then outline the...Ch. 4 - Write the balanced equation, then outline the...Ch. 4 - H2 is produced by the reaction of 118.5 mL of a...Ch. 4 - Gallium chloride is formed by the reaction of 2.6...Ch. 4 - I2 is produced by the reaction of 0.4235 mol of...Ch. 4 - Silver is often extracted from ores such as...Ch. 4 - What mass of silver oxide, Ag2O, is required to...Ch. 4 - Carborundum is silicon carbide, SiC, a very hard...Ch. 4 - Automotive air bags inflate when a sample of...Ch. 4 - Urea, CO( NH2)2, is manufactured on a large scale...Ch. 4 - In an accident, a solution containing 2.5 kg of...Ch. 4 - A compact car gets 37.5 miles per gallon on the...Ch. 4 - What volume of 0.750 M hydrochloric acid solution...Ch. 4 - What volume of a 0.2089 M Kl solution contains...Ch. 4 - A mordant is a substance that combines with a dye...Ch. 4 - The toxic pigment called white lead, Pb3(OH)2(...Ch. 4 - The following quantities are placed in a...Ch. 4 - What is the limiting reactant in a reaction that...Ch. 4 - Which of the postulates of Dalton’s atomic theory...Ch. 4 - A student isolated 25 g of a compound following a...Ch. 4 - A sample of 0.53 g of carbon dioxide was obtained...Ch. 4 - Freon-12, CCl2F2, is prepared from CCl4 by...Ch. 4 - Citric acid, C6H5CH3, a component of jams,...Ch. 4 - Toluene, C6H5CH3, is oxidized by air under...Ch. 4 - In a laboratory experiment, the reaction of 3.0...Ch. 4 - Outline the steps needed to solve the following...Ch. 4 - Outline the steps needed to determine the limiting...Ch. 4 - Outline the steps needed to determine the limiting...Ch. 4 - What is the limiting reactant when 1.50 g of...Ch. 4 - Uranium can be isolated from its ores by...Ch. 4 - How many molecules of C2H4Cl2 can be prepared from...Ch. 4 - How many molecules of the sweetener saccharin can...Ch. 4 - The phosphorus pentoxide used to produce...Ch. 4 - Would you agree to buy 1 trillion...Ch. 4 - What volume of 0.0105-M HBr solution is required...Ch. 4 - Titration of a 20.0-mL sample of acid rain...Ch. 4 - What is the concentration of NaCl in a solution if...Ch. 4 - In a common medical laboratory determination of...Ch. 4 - Potatoes can be peeled commercially by soaking...Ch. 4 - A sample of gallium bromide, GaBr3, weighing 0....Ch. 4 - The principal component of mothballs is...Ch. 4 - A 0.025-g sample of a compound composed of boron...Ch. 4 - Sodium bicarbonate (baking soda), NaHCO3, can be...Ch. 4 - What volume of 0.600 M HCl is required to react...Ch. 4 - What volume of 0.08892 M HNO3 is required to react...Ch. 4 - What volume of a 0.3300-M solution of sodium...Ch. 4 - What volume of a 0.00945-M solution of potassium...Ch. 4 - A sample of solid calcium hydroxide, Ca(OH)2, is...Ch. 4 - What mass of Ca(OH)2 will react with 25.0 g of...Ch. 4 - How many milliliters of a 0.1500-M solution of KOH...Ch. 4 - Potassium acid phthalate, KNaC8H4O4, or KHP, is...Ch. 4 - The reaction of WCl6 with Al at ~400 C gives black...
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