Modified Mastering Chemistry with Pearson eText -- Standalone Access Card -- for Chemistry: Structure and Properties (2nd Edition)
2nd Edition
ISBN: 9780134565613
Author: Nivaldo J. Tro
Publisher: PEARSON
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Chapter 3, Problem 8SAQ
Interpretation Introduction
Interpretation:
To find out the true statement abouteffective nuclear charge.
Concept introduction:
The total charge of all protons present in the nucleus is said to be nuclear charge. It has similar value as the
Net charge experienced by the valence electrons is known as Effective nuclear charge. The electrons core is covered or shielded stronger than the outer valance of electrons. The atomic number will get increases and principle quantum number of an element will also increase and thus the atomic radius of an element will also get increases as we go down the group.
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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
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Note: if you have not been given enough information to decide a sign, select the "unknown" option.
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A
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proceeds slower at temperatures above
120. °C.
ΔΗ is
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AS is
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B
This reaction is spontaneous except above
117. °C.
AS is
(pick one)
ΔΗ is
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C
above.
AS is
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?
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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.
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pH
=
11.43]
G
00.
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Chapter 3 Solutions
Modified Mastering Chemistry with Pearson eText -- Standalone Access Card -- for Chemistry: Structure and Properties (2nd Edition)
Ch. 3 - What are periodic properties?Ch. 3 - Use aluminum as an example to explain how density...Ch. 3 - Explain the contributions of Dobereiner and...Ch. 3 - Who is credited with arranging the periodic table?...Ch. 3 - Prob. 5ECh. 3 - Prob. 6ECh. 3 - What is an electron configuration? Provide an...Ch. 3 - Prob. 8ECh. 3 - Prob. 9ECh. 3 - What is penetration? How does the penetration of...
Ch. 3 - Why are the sublevels within a principal level...Ch. 3 - Prob. 12ECh. 3 - Prob. 13ECh. 3 - What are degenerate orbitals? According to Hund’s...Ch. 3 - List all orbitals from 1s through 5s according to...Ch. 3 - Prob. 16ECh. 3 - Copy this blank periodic table onto a sheet of...Ch. 3 - Explain why the s block in the periodic table has...Ch. 3 - Explain why the rows in the periodic table become...Ch. 3 - Explain the relationship between a main-group...Ch. 3 - Explain the relationship between an element's row...Ch. 3 - Which of the transition elements in the first...Ch. 3 - Explain how to write the electron configuration...Ch. 3 - Explain the relationship between the properties of...Ch. 3 - Prob. 25ECh. 3 - Prob. 26ECh. 3 - What is effective nuclear charge? What is...Ch. 3 - When an alkali metal forms an ion, what is the...Ch. 3 - When a halogen forms an ion, what is the charge of...Ch. 3 - Use the concepts of effective nuclear charge,...Ch. 3 - For transition elements, describe the trends in...Ch. 3 - Prob. 32ECh. 3 - Explain how to write an electron configuration for...Ch. 3 - Prob. 34ECh. 3 - Prob. 35ECh. 3 - Prob. 36ECh. 3 - What are the exceptions to the periodic trends in...Ch. 3 - Prob. 38ECh. 3 - Prob. 39ECh. 3 - What is metallic character? What are the observed...Ch. 3 - Prob. 41ECh. 3 - Prob. 42ECh. 3 - Determine whether each element is a main-group...Ch. 3 - Determine whether each element is a transition...Ch. 3 - Write the full electron configuration for each...Ch. 3 - Prob. 46ECh. 3 - Write the full orbital diagram for each element. N...Ch. 3 - Prob. 48ECh. 3 - Use the periodic table to write the electron...Ch. 3 - Use the periodic table to determine the element...Ch. 3 - Use the periodic table to determine each quantity....Ch. 3 - Use the periodic table to determine each quantity....Ch. 3 - Prob. 53ECh. 3 - Prob. 54ECh. 3 - Determine the number of valence electrons in each...Ch. 3 - Prob. 56ECh. 3 - Which outer electron configuration would you...Ch. 3 - Prob. 58ECh. 3 - Prob. 59ECh. 3 - List the number of valence electrons in each...Ch. 3 - Which pair of elements do you expect to be most...Ch. 3 - Prob. 62ECh. 3 - Predict the charge of the ion formed by each...Ch. 3 - Predict the charge of the ion formed by each...Ch. 3 - According to Coulomb’s law, which pair of charged...Ch. 3 - Prob. 66ECh. 3 - Prob. 67ECh. 3 - Arrange the atoms according to decreasing...Ch. 3 - If core electrons completely shielded valence...Ch. 3 - In Section 3.6/, we estimated the effective...Ch. 3 - Prob. 71ECh. 3 - Choose the larger atom in each pair. Sn or Si Br...Ch. 3 - Arrange these elements in order of increasing...Ch. 3 - Arrange these elements in order of decreasing...Ch. 3 - Write the electron configuration for each ion. O2...Ch. 3 - Write the electron configuration for each ion. Cl...Ch. 3 - Write orbital diagrams for each ion and determine...Ch. 3 - Write orbital diagrams for each ion and determine...Ch. 3 - Which is the larger species in each pair? LiorLi+...Ch. 3 - Which is the larger species in each pair? SrorSr2+...Ch. 3 - Arrange this isoelectronic series in order of...Ch. 3 - Arrange this isoelectronic series in order of...Ch. 3 - Choose the element with the higher first...Ch. 3 - Prob. 84ECh. 3 - Arrange these elements in order of increasing...Ch. 3 - Prob. 86ECh. 3 - For each element, predict where the “jump” occurs...Ch. 3 - Prob. 88ECh. 3 - Choose the element with the more negative (more...Ch. 3 - Prob. 90ECh. 3 - Choose the more metallic element in each pair....Ch. 3 - Prob. 92ECh. 3 - Prob. 93ECh. 3 - Prob. 94ECh. 3 - Prob. 95ECh. 3 - Prob. 96ECh. 3 - Both vanadium and its 3+ ion are paramagnetic. Use...Ch. 3 - Use electron configurations to explain why copper...Ch. 3 - Prob. 99ECh. 3 - Suppose you were trying to find a substitute for...Ch. 3 - Prob. 101ECh. 3 - Which pair of elements would you expect to have...Ch. 3 - Consider these elements: N, Mg, O, F, Al. Write...Ch. 3 - Consider these elements: P, Ca, Si, S, Ga. Write...Ch. 3 - Prob. 105ECh. 3 - Explain why vanadium (radius = 134 pm) and copper...Ch. 3 - The lightest noble gases, such as helium and neon,...Ch. 3 - The lightest halogen is also the most chemically...Ch. 3 - Prob. 109ECh. 3 - Prob. 110ECh. 3 - Prob. 111ECh. 3 - Write the electronic configurations of the six...Ch. 3 - You have cracked a secret code that uses elemental...Ch. 3 - The electron affinity of sodium is lower than that...Ch. 3 - Use Coulomb’s law to calculate the ionization...Ch. 3 - Prob. 116ECh. 3 - Consider the densities and atomic radii of the...Ch. 3 - Prob. 118ECh. 3 - Consider the metals in the first transition...Ch. 3 - Imagine a universe in which the value of ms can be...Ch. 3 - A carbon atom can absorb radiation of various...Ch. 3 - Only trace amounts of the synthetic element...Ch. 3 - What is the atomic number of the as yet...Ch. 3 - The trend in second ionization energy for the...Ch. 3 - Unlike the elements in groups 1A and 2A, those in...Ch. 3 - Using the data in Figures 3.19 and 3.20/,...Ch. 3 - Prob. 127ECh. 3 - Prob. 128ECh. 3 - The heaviest known alkaline earth metal is radium,...Ch. 3 - Predict the electronic configurations of the first...Ch. 3 - Prob. 131ECh. 3 - The outermost valence electron in atom A...Ch. 3 - Prob. 133ECh. 3 - Give a combination of four quantum numbers that...Ch. 3 - Prob. 135ECh. 3 - Prob. 136ECh. 3 - Prob. 137ECh. 3 - Prob. 138ECh. 3 - Prob. 139ECh. 3 - Prob. 140ECh. 3 - Prob. 141ECh. 3 - 1. According to Coulomb's law, if the separation...Ch. 3 - Prob. 2SAQCh. 3 - Choose the correct electron configuration for Se....Ch. 3 - Prob. 4SAQCh. 3 - Which set of four quantum numbers corresponds to...Ch. 3 - Prob. 6SAQCh. 3 - Which statement is true about electron shielding...Ch. 3 - Prob. 8SAQCh. 3 - What is the electron configuration for Fe2+?...Ch. 3 - Which species is diamagnetic? Zn Cr 2+ C MnCh. 3 - Prob. 11SAQCh. 3 - Prob. 12SAQCh. 3 - Prob. 13SAQCh. 3 - Prob. 14SAQCh. 3 - Prob. 15SAQCh. 3 - Prob. 16SAQ
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