Chemistry (OER)
2nd Edition
ISBN: 9781947172616
Author: OpenStax
Publisher: OpenStax College
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Textbook Question
Chapter 4, Problem 85E
A 0.025-g sample of a compound composed of boron and hydrogen, with a molecular mass of ~28 amu, burns spontaneously when exposed to air, producing 0.063 g of
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Students have asked these similar questions
(11pts total) Consider the arrows pointing at three different carbon-carbon bonds in the
molecule depicted below.
Bond B
Bond A
Bond C
a. (2pts) Which bond between A-C is weakest? Which is strongest? Place answers in
appropriate boxes.
Weakest
Bond
Strongest
Bond
b. (4pts) Consider the relative stability of all cleavage products that form when bonds A,
B, AND C are homolytically cleaved/broken. Hint: cleavage products of bonds A, B,
and C are all carbon radicals.
i. Which ONE cleavage product is the most stable? A condensed or bond line
representation is fine.
ii. Which ONE cleavage product is the least stable? A condensed or bond line
representation is fine.
c. (5pts) Use principles discussed in lecture, supported by relevant structures, to
succinctly explain the why your part b (i) radical is more stable than your part b(ii)
radical. Written explanation can be no more than one-two succinct sentence(s)!
.
3°C
with
TH
12. (10pts total) Provide the major product for each reaction depicted below. If no reaction
occurs write NR. Assume heat dissipation is carefully controlled in the fluorine reaction.
3H
24 total (30)
24
21
2h
• 6H total
● 8H total
34
래
Br2
hv
major product
will be most
Substituted
12
hv
Br
NR
I too weak of a
participate in P-1
F₂
hv
Statistically
most favored
product will be
major
=
most subst =
thermo favored
hydrogen atom abstractor to
LL
F
Five chemistry project topic that does not involve practical
Chapter 4 Solutions
Chemistry (OER)
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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