
CHEMISTRY-TEXT
8th Edition
ISBN: 9780134856230
Author: Robinson
Publisher: PEARSON
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Chapter 22, Problem 22.15P
Interpretation Introduction
Interpretation:
The value of x in the formula
Concept introduction:
The density of a substance can be determined as follows:
Here, m is mass and V is volume.
Also, number of moles of a substance is related to mass and molar mass as follows:
Here, m is mass and M is molar mass.
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Using the conditions of spontaneity to deduce the signs of AH and AS
Use the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy AH and reaction entropy
AS.
Note: if you have not been given enough information to decide a sign, select the "unknown" option.
reaction
observations
conclusions
A
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proceeds slower at temperatures above
120. °C.
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(pick one)
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B
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117. °C.
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(pick one)
ΔΗ is
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This reaction is slower below 20. °C than
C
above.
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|(pick one)
?
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1
Calculating the pH at equivalence of a titration
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0/5
a
A chemist titrates 70.0 mL of a 0.7089 M hydrocyanic acid (HCN) solution with 0.4574M KOH solution at 25 °C. Calculate the pH at equivalence. The pK of
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Round your answer to 2 decimal places.
Note for advanced students: you may assume the total volume of the solution equals the initial volume plus the volume of KOH solution added.
pH
=
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G
00.
18
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Chapter 22 Solutions
CHEMISTRY-TEXT
Ch. 22 - Which element has more nonmetallic character:Cl or...Ch. 22 - Prob. 22.2ACh. 22 - Prob. 22.3PCh. 22 - Prob. 22.4ACh. 22 - Prob. 22.5PCh. 22 - Look at the location of elements A, B, C, and Din...Ch. 22 - What are the formula and charge of the silicate...Ch. 22 - Suggest a plausible structure for the silicate...Ch. 22 - Prob. 22.9PCh. 22 - Write balanced net ionic equations for the...
Ch. 22 - Liquid hydrogen has been used as a fuel in theU.S....Ch. 22 - (a) Write balanced equations for the...Ch. 22 - Write a balanced equation for the production of...Ch. 22 - Prob. 22.14PCh. 22 - Prob. 22.15PCh. 22 - Prob. 22.16PCh. 22 - Prob. 22.17PCh. 22 - Locate each of the following groups of elements on...Ch. 22 - Prob. 22.19CPCh. 22 - Prob. 22.20CPCh. 22 - Prob. 22.21CPCh. 22 - Prob. 22.22CPCh. 22 - Prob. 22.23CPCh. 22 - Prob. 22.24CPCh. 22 - Prob. 22.25CPCh. 22 - Prob. 22.26CPCh. 22 - Prob. 22.27CPCh. 22 - Prob. 22.28CPCh. 22 - Consider the six second- and third-row elements in...Ch. 22 - Prob. 22.30CPCh. 22 - Prob. 22.31CPCh. 22 - Which element in each of the following pairs has...Ch. 22 - Arrange the following elements in order of...Ch. 22 - Prob. 22.34SPCh. 22 - Arrange the following elements in order of...Ch. 22 - Prob. 22.36SPCh. 22 - Arrange the following elements in order of...Ch. 22 - Which element in each of the following pairs has...Ch. 22 - Which element in each of the following pairs has...Ch. 22 - Prob. 22.40SPCh. 22 - Prob. 22.41SPCh. 22 - Prob. 22.42SPCh. 22 - Prob. 22.43SPCh. 22 - Consider the elements C, Se, B, Sn, and Cl....Ch. 22 - Prob. 22.45SPCh. 22 - BF3 reacts with F to give BF4 , but AlF3 reacts...Ch. 22 - GeCl4 reacts with Cl to give GeCl62 , but CCl4...Ch. 22 - At ordinary temperatures, sulfur exists as S8 but...Ch. 22 - Carbon, nitrogen, and oxygen form bonds, but...Ch. 22 - Prob. 22.50SPCh. 22 - Consider the elements Mn, Al, C, S, and Si. Which...Ch. 22 - Prob. 22.52SPCh. 22 - Prob. 22.53SPCh. 22 - Prob. 22.54SPCh. 22 - The hydrogen-filled dirigible Hindenburg had a...Ch. 22 - Write the chemical formula of a compound that...Ch. 22 - Prob. 22.57SPCh. 22 - Prob. 22.58SPCh. 22 - Prob. 22.59SPCh. 22 - Prob. 22.60SPCh. 22 - Prob. 22.61SPCh. 22 - Prob. 22.62SPCh. 22 - Describe the molecular geometry of: (a) GeH4(b)...Ch. 22 - Prob. 22.64SPCh. 22 - Explain why the hydrogen atoms in interstitial...Ch. 22 - Write a balanced net ionic equation for the...Ch. 22 - Write a balanced net ionic equation for the...Ch. 22 - Look at the properties of the alkali metals...Ch. 22 - Why does chemical reactivity increase from top to...Ch. 22 - Prob. 22.70SPCh. 22 - Prob. 22.71SPCh. 22 - Prob. 22.72SPCh. 22 - Prob. 22.73SPCh. 22 - Prob. 22.74SPCh. 22 - Prob. 22.75SPCh. 22 - Magnesium metal is produced by electrolysis of...Ch. 22 - How many hours are required to produce 10.0 kg of...Ch. 22 - Assign charges to the oxygen-containing anions in...Ch. 22 - Assign charges to the oxygen-containing anions in...Ch. 22 - Prob. 22.80SPCh. 22 - Prob. 22.81SPCh. 22 - Prob. 22.82SPCh. 22 - What is the oxidation state of the group 3A...Ch. 22 - Prob. 22.84SPCh. 22 - Prob. 22.85SPCh. 22 - Prob. 22.86SPCh. 22 - Prob. 22.87SPCh. 22 - Prob. 22.88SPCh. 22 - Prob. 22.89SPCh. 22 - Prob. 22.90SPCh. 22 - Prob. 22.91SPCh. 22 - Draw the electron-dot structure for CO, CO2 , and...Ch. 22 - What is the hybridization and geometry around...Ch. 22 - Which of the group 4A elements have allot ropes...Ch. 22 - Prob. 22.95SPCh. 22 - Prob. 22.96SPCh. 22 - Prob. 22.97SPCh. 22 - Prob. 22.98SPCh. 22 - Prob. 22.99SPCh. 22 - Prob. 22.100SPCh. 22 - Suggest a plausible structure for the silicate...Ch. 22 - Carbon is an essential element in the molecules on...Ch. 22 - Prob. 22.103SPCh. 22 - Prob. 22.104SPCh. 22 - Prob. 22.105SPCh. 22 - Prob. 22.106SPCh. 22 - Prob. 22.107SPCh. 22 - Draw an electron-dot structure for N2 , and...Ch. 22 - Describe the structures of the white and red...Ch. 22 - Prob. 22.110SPCh. 22 - Prob. 22.111SPCh. 22 - Account for each of the following observations....Ch. 22 - Compare and contrast the properties of ammonia and...Ch. 22 - Draw all the possible resonance structure for N2O...Ch. 22 - Could the strain in the P4 molecule be reduced by...Ch. 22 - Prob. 22.116SPCh. 22 - Prob. 22.117SPCh. 22 - In industry O2 is prepared by fractional...Ch. 22 - Prob. 22.119SPCh. 22 - Prob. 22.120SPCh. 22 - Prob. 22.121SPCh. 22 - Prob. 22.122SPCh. 22 - Prob. 22.123SPCh. 22 - Prob. 22.124SPCh. 22 - Prob. 22.125SPCh. 22 - Prob. 22.126SPCh. 22 - Prob. 22.127SPCh. 22 - Which is more acidic? (a) Cr2O3orCrO3 (b)...Ch. 22 - Prob. 22.129SPCh. 22 - Write a balanced net ionic equation for the...Ch. 22 - Write a balanced net ionic equation for the...Ch. 22 - Prob. 22.132SPCh. 22 - Write a balanced net ionic equation for the...Ch. 22 - Describe the structure of the sulfur molecules in:...Ch. 22 - The viscosity of liquid sulfur increases sharply...Ch. 22 - Prob. 22.136SPCh. 22 - Write a balanced net ionic equation for each of...Ch. 22 - Prob. 22.138SPCh. 22 - Prob. 22.139SPCh. 22 - Write electron-dot structures for each of the...Ch. 22 - (a) Why is the SO3 molecule trigonal planar hut...Ch. 22 - Prob. 22.142SPCh. 22 - Prob. 22.143SPCh. 22 - Little is known about the chemistry of astatine...Ch. 22 - Prob. 22.145SPCh. 22 - Prob. 22.146SPCh. 22 - Prob. 22.147SPCh. 22 - Prob. 22.148SPCh. 22 - Prob. 22.149SPCh. 22 - Prob. 22.150SPCh. 22 - Prob. 22.151SPCh. 22 - Prob. 22.152SPCh. 22 - Prob. 22.153SPCh. 22 - Prob. 22.154SPCh. 22 - Prob. 22.155SPCh. 22 - Prob. 22.156SPCh. 22 - Prob. 22.157SPCh. 22 - Prob. 22.158SPCh. 22 - Prob. 22.159SPCh. 22 - Prob. 22.160MPCh. 22 - Prob. 22.161MPCh. 22 - Prob. 22.162MPCh. 22 - Prob. 22.163MPCh. 22 - Prob. 22.164MPCh. 22 - Prob. 22.165MPCh. 22 - Prob. 22.166MPCh. 22 - Prob. 22.167MP
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