General Chemistry
11th Edition
ISBN: 9781305859142
Author: Ebbing, Darrell D., Gammon, Steven D.
Publisher: Cengage Learning,
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Chapter 9, Problem 9.70QP
Interpretation Introduction
Interpretation:
The resonance structures for Formate ion has to be written
Concept introduction:
The electron structure of a given molecule contains delocalized bonding via possible structure of all electron-dot formulas is known as resonance description.
One form of resonance stable structure is converted into other forms. It possible in both single and multiple bonds molecule. The electron-dot formulas differing only in the placement of single and double bonds
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Free Response Questions
FRQ 1:
0/5
To spectrophotometrically determine the mass percent of cobalt in an ore containing cobalt and
some inert materials, solutions with known [Co?) are prepared and absorbance of each of the
solutions is measured at the wavelength of optimum absorbance. The data are used to create a
calibration plot, shown below.
0.90-
0.80-
0.70
0.60
0.50
0.40-
0.30
0.20-
0.10-
0.00-
0.005
0.010
Concentration (M)
0.015
A 0.630 g sample of the ore is completely dissolved in concentrated HNO3(aq). The mixture is diluted
with water to a final volume of 50.00 ml. Assume that all the cobalt in the ore sample is converted to
Co2+(aq).
a. What is the [Co2] in the solution if the absorbance of a sample of the solution is 0.74?
13
✗
b. Calculate the number of moles of Co2+(aq) in the 50.00 mL solution.
0.008 mols Co
Please correct answer and don't used hand raiting
Please correct answer and don't used hand raiting
Chapter 9 Solutions
General Chemistry
Ch. 9.1 - Represent the transfer of electrons from magnesium...Ch. 9.2 - Prob. 9.2ECh. 9.2 - Prob. 9.3ECh. 9.2 - Prob. 9.4ECh. 9.2 - The following are electron configurations for some...Ch. 9.3 - Which has the larger radius, S or S2? Explain.Ch. 9.3 - Without looking at Table 9.3, arrange the...Ch. 9.3 - Prob. 9.7ECh. 9.5 - Using electronegativities, decide which of the...Ch. 9.6 - Dichlorodifluoromethane, CCl2F2, is a gas used as...
Ch. 9.6 - Prob. 9.10ECh. 9.6 - Prob. 9.11ECh. 9.6 - Prob. 9.2CCCh. 9.7 - Prob. 9.12ECh. 9.8 - Prob. 9.13ECh. 9.8 - Prob. 9.14ECh. 9.9 - Prob. 9.15ECh. 9.9 - Prob. 9.3CCCh. 9.10 - Estimate the OH bond length in H2O from the...Ch. 9.10 - Formic acid, isolated in 1670, is the irritant in...Ch. 9.11 - Use bond enthalpies to estimate the enthalpy...Ch. 9 - Describe the formation of a sodium chloride...Ch. 9 - Prob. 9.2QPCh. 9 - Prob. 9.3QPCh. 9 - Define lattice energy for potassium bromide.Ch. 9 - Why do most monatomic cations of the main-group...Ch. 9 - Prob. 9.6QPCh. 9 - Prob. 9.7QPCh. 9 - Prob. 9.8QPCh. 9 - Prob. 9.9QPCh. 9 - Draw a potential-energy diagram for a molecule...Ch. 9 - Prob. 9.11QPCh. 9 - Prob. 9.12QPCh. 9 - Prob. 9.13QPCh. 9 - Prob. 9.14QPCh. 9 - Prob. 9.15QPCh. 9 - Prob. 9.16QPCh. 9 - Prob. 9.17QPCh. 9 - Prob. 9.18QPCh. 9 - Which of the following contains both ionic and...Ch. 9 - The radii of the species S, S+, and S decrease in...Ch. 9 - Prob. 9.21QPCh. 9 - Prob. 9.22QPCh. 9 - Prob. 9.23QPCh. 9 - Bond Enthalpy When atoms of the hypothetical...Ch. 9 - You land on a distant planet in another universe...Ch. 9 - Which of the following represent configurations of...Ch. 9 - Prob. 9.27QPCh. 9 - Prob. 9.28QPCh. 9 - Prob. 9.29QPCh. 9 - For each of the following molecular models, write...Ch. 9 - For each of the following molecular formulas, draw...Ch. 9 - Below are three resonance formulas for N2O...Ch. 9 - Lithium, Li, reacts with element X to form an...Ch. 9 - Prob. 9.34QPCh. 9 - Prob. 9.35QPCh. 9 - Prob. 9.36QPCh. 9 - Use Lewis symbols to represent the transfer of...Ch. 9 - Use Lewis symbols to represent the electron...Ch. 9 - Prob. 9.39QPCh. 9 - Prob. 9.40QPCh. 9 - Prob. 9.41QPCh. 9 - Prob. 9.42QPCh. 9 - Prob. 9.43QPCh. 9 - Prob. 9.44QPCh. 9 - Prob. 9.45QPCh. 9 - Prob. 9.46QPCh. 9 - Prob. 9.47QPCh. 9 - Which has the larger radius, N3 or P3? Explain....Ch. 9 - Arrange the following in order of increasing ionic...Ch. 9 - Arrange the following in order of increasing ionic...Ch. 9 - Use Lewis symbols to show the reaction of atoms to...Ch. 9 - Prob. 9.52QPCh. 9 - Assuming that the atoms form the normal number of...Ch. 9 - Assuming that the atoms form the normal number of...Ch. 9 - Prob. 9.55QPCh. 9 - Prob. 9.56QPCh. 9 - Arrange the following bonds in order of increasing...Ch. 9 - Decide which of the following bonds is least polar...Ch. 9 - Prob. 9.59QPCh. 9 - Prob. 9.60QPCh. 9 - Prob. 9.61QPCh. 9 - Write Lewis formulas for the following molecules:...Ch. 9 - Write Lewis formulas for the following molecules:...Ch. 9 - Write Lewis formulas for the following molecules:...Ch. 9 - Write Lewis formulas for the following ions: a ClO...Ch. 9 - Write Lewis formulas for the following ions: a...Ch. 9 - Write resonance descriptions for the following: a...Ch. 9 - Prob. 9.68QPCh. 9 - Prob. 9.69QPCh. 9 - Prob. 9.70QPCh. 9 - Write Lewis formulas for the following: a XeF2 b...Ch. 9 - Write Lewis formulas for the following: a I3 b...Ch. 9 - Write Lewis formulas for the following: a BCl3 b...Ch. 9 - Write Lewis formulas for the following: a BeF2 b...Ch. 9 - Write a Lewis formula for each of the following,...Ch. 9 - Write a Lewis formula for each of the following,...Ch. 9 - Prob. 9.77QPCh. 9 - For each of the following, use formal charges to...Ch. 9 - Prob. 9.79QPCh. 9 - Prob. 9.80QPCh. 9 - Calculate the bond length for each of the...Ch. 9 - Prob. 9.82QPCh. 9 - One of the following compounds has a...Ch. 9 - Prob. 9.84QPCh. 9 - Use bond enthalpies (Table 9.5) to estimate H for...Ch. 9 - A commercial process for preparing ethanol (ethyl...Ch. 9 - For each of the following pairs of elements, state...Ch. 9 - For each of the following pairs of elements, state...Ch. 9 - Prob. 9.89QPCh. 9 - Prob. 9.90QPCh. 9 - Iodic acid, HIO3, is a colorless, crystalline...Ch. 9 - Prob. 9.92QPCh. 9 - Sodium amide, known commercially as sodamide, is...Ch. 9 - Prob. 9.94QPCh. 9 - Nitronium perchlorate, NO2ClO4, is a reactive salt...Ch. 9 - Solid phosphorus pentabromide, PBr5, has been...Ch. 9 - Write electron-dot formulas for the following: a...Ch. 9 - Prob. 9.98QPCh. 9 - Prob. 9.99QPCh. 9 - Write Lewis formulas for the following: a AlCl4 b...Ch. 9 - Prob. 9.101QPCh. 9 - Prob. 9.102QPCh. 9 - Prob. 9.103QPCh. 9 - Acetic acid has the structure CH3CO(OH), in which...Ch. 9 - Prob. 9.105QPCh. 9 - Methyl nitrite has the structure No attempt has...Ch. 9 - Prob. 9.107QPCh. 9 - Prob. 9.108QPCh. 9 - Use bond enthalpies to estimate H for the reaction...Ch. 9 - Prob. 9.110QPCh. 9 - Compare the properties of an ionic material such...Ch. 9 - Prob. 9.112QPCh. 9 - Explain the decomposition of nitroglycerin in...Ch. 9 - How did the Swedish chemist Alfred Nobel manage to...Ch. 9 - What property of a chemical bond gives rise to the...Ch. 9 - Prob. 9.116QPCh. 9 - Prob. 9.117QPCh. 9 - Calculate the lattice energy of potassium...Ch. 9 - Prob. 9.119QPCh. 9 - Prob. 9.120QPCh. 9 - Prob. 9.121QPCh. 9 - An ion M2+ has the configuration [Ar]3d2, and an...Ch. 9 - Prob. 9.123QPCh. 9 - Prob. 9.124QPCh. 9 - Prob. 9.125QPCh. 9 - Prob. 9.126QPCh. 9 - Which of the following molecules contains only...Ch. 9 - Prob. 9.128QPCh. 9 - Two fourth-period atoms, one of a transition...Ch. 9 - Prob. 9.130QPCh. 9 - Draw resonance formulas of the phosphoric acid...Ch. 9 - Prob. 9.132QPCh. 9 - Prob. 9.133QPCh. 9 - Prob. 9.134QPCh. 9 - Prob. 9.135QPCh. 9 - Prob. 9.136QPCh. 9 - Phosphorous acid. H3PO3, has the structure...Ch. 9 - Hypophosphorous acid, H3PO2, has the structure...Ch. 9 - An ionic compound has the following composition...Ch. 9 - An ionic compound has the following composition...Ch. 9 - A gaseous compound has the following composition...Ch. 9 - A liquid compound used in dry cleaning contains...Ch. 9 - A compound of tin and chlorine is a colorless...Ch. 9 - Prob. 9.144QPCh. 9 - Calculate the enthalpy of reaction for...Ch. 9 - Prob. 9.146QPCh. 9 - Prob. 9.147QPCh. 9 - Prob. 9.148QPCh. 9 - Prob. 9.149QPCh. 9 - Prob. 9.150QP
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