CHEMISTRY+CHEM...HYBRID ED.(LL)>CUSTOM<
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ISBN: 9781305020788
Author: John C.Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher: CENGAGE C
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Chapter 7, Problem 61IL
Nickel(II) formate [Ni(HCO2)2] is widely used as a catalyst precursor and to make metallic nickel. It can be prepared in the general chemistry laboratory by treating nickel(II) acetate with formic acid (HCO2H).
Ni(CH3CO2)2(aq) + 2 HCO2H(aq) → Ni(HCO2)2(aq) + 2 CH3CO2H(aq)
Green crystalline Ni(HCO2)2 is precipitated after adding ethanol to the solution.
- (a) What is the theoretical yield of nickel(II) formate from 0.500 g of nickel(II) acetate and excess formic acid?
- (b) Is nickel(II) formate paramagnetic or diamagnetic? If it is paramagnetic, how many unpaired electrons would you expect?
- (c) If nickel(II) formate is heated to 300 °C in the absence of air for 30 minutes, the salt decomposes to form pure nickel powder. What mass of nickel powder should be produced by heating 253 mg of nickel(II) formate? Are nickel atoms paramagnetic?
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In methyl orange preparation, if the reaction started with 0.5 mole of sulfanilic acid to form the diazonium salt of this compound and then it converted to methyl orange [0.2 mole]. If the efficiency of the second step was 50%, Calculate: A. Equation(s) of Methyl Orange synthesis: Diazotization and coupling reactions. B. How much diazonium salt was formed in this reaction? C. The efficiency percentage of the diazotization reaction D. Efficiency percentage of the whole reaction.
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Chapter 7 Solutions
CHEMISTRY+CHEM...HYBRID ED.(LL)>CUSTOM<
Ch. 7.1 - How many electrons can be accommodated in the n =...Ch. 7.1 - Prob. 2RCCh. 7.2 - Based on the Aufbau principle and the n + rule,...Ch. 7.3 - (a) What element has the configuration...Ch. 7.3 - Write one possible set of quantum numbers for the...Ch. 7.3 - Using the periodic table and without looking at...Ch. 7.3 - 1. What is the electron configuration of selenium...Ch. 7.3 - 2. Based on electron configurations, which of the...Ch. 7.4 - Prob. 1CYUCh. 7.4 - Prob. 1RC
Ch. 7.4 - Prob. 2RCCh. 7.4 - Which of the following species is most...Ch. 7.5 - Without looking at the figures for the periodic...Ch. 7.5 - What is the trend in sizes of the ions K+, S2, and...Ch. 7.5 - Prob. 2RCCh. 7.6 - Give the electron configurations for iron and the...Ch. 7.6 - Prob. 2QCh. 7.6 - Prob. 3QCh. 7.6 - Prob. 4QCh. 7.6 - Prob. 1RCCh. 7.6 - Prob. 2RCCh. 7.6 - The most common oxidation state of a rare earth...Ch. 7.6 - Prob. 6QCh. 7.6 - Prob. 7QCh. 7.6 - Use the atomic radii of scandium, yttrium,...Ch. 7.6 - Prob. 9QCh. 7.6 - Prob. 10QCh. 7 - Write the electron configurations for P and CI...Ch. 7 - Write the electron configurations for Mg and Ar...Ch. 7 - Using spdf notation, write the electron...Ch. 7 - Using spdf notation, give the electron...Ch. 7 - Prob. 5PSCh. 7 - Prob. 6PSCh. 7 - Use noble gas and spdf notations to depict...Ch. 7 - The lanthanides, once called the rare earth...Ch. 7 - Prob. 9PSCh. 7 - Prob. 10PSCh. 7 - What is the maximum number of electrons that can...Ch. 7 - What is the maximum number of electrons that can...Ch. 7 - Depict the electron configuration for magnesium...Ch. 7 - Depict the electron configuration for phosphorus...Ch. 7 - Using an orbital box diagram and noble gas...Ch. 7 - Using an orbital box diagram and noble gas...Ch. 7 - Using orbital box diagrams, depict an electron...Ch. 7 - Prob. 18PSCh. 7 - Prob. 19PSCh. 7 - Using orbital box diagrams and noble gas notation,...Ch. 7 - Manganese is found as MnO2 in deep ocean deposits....Ch. 7 - One compound found in alkaline batteries is NiOOH,...Ch. 7 - Prob. 23PSCh. 7 - Arrange the following elements in order of...Ch. 7 - Prob. 25PSCh. 7 - Prob. 26PSCh. 7 - Which of the following groups of elements is...Ch. 7 - Arrange the following atoms in order of increasing...Ch. 7 - Compare the elements Na, Mg, O, and P. (a) Which...Ch. 7 - Compare the elements B. Al, C, and Si. (a) Which...Ch. 7 - Explain each answer briefly. (a) Place the...Ch. 7 - Explain each answer briefly. (a) Rank the...Ch. 7 - Identify the element that corresponds to each of...Ch. 7 - Identify the element that corresponds to each of...Ch. 7 - Explain why the photoelectron spectra of hydrogen...Ch. 7 - Sketch the major features (number of peaks and...Ch. 7 - These questions are not designated as to type or...Ch. 7 - The deep blue color of sapphires comes from the...Ch. 7 - Using an orbital box diagram and noble gas...Ch. 7 - Prob. 40GQCh. 7 - Prob. 41GQCh. 7 - Prob. 42GQCh. 7 - Which of the following is not an allowable set of...Ch. 7 - A possible excited state for the H atom has an...Ch. 7 - The magnet in the following photo is made from...Ch. 7 - Name the element corresponding to each...Ch. 7 - Arrange the following atoms in order of increasing...Ch. 7 - Prob. 48GQCh. 7 - Answer the questions below about the elements A...Ch. 7 - Answer (he following questions about the elements...Ch. 7 - Which of the following ions are unlikely to be...Ch. 7 - Prob. 52GQCh. 7 - Answer each of the following questions: (a) Of the...Ch. 7 - Prob. 54GQCh. 7 - Prob. 55GQCh. 7 - Two elements in the second transition series (Y...Ch. 7 - Prob. 57GQCh. 7 - The configuration of an element is given here. (a)...Ch. 7 - Answer the questions below about the elements A...Ch. 7 - Answer the questions below concerning ground state...Ch. 7 - Nickel(II) formate [Ni(HCO2)2] is widely used as a...Ch. 7 - Spinets are solids with the general formula M2+...Ch. 7 - The following questions use concepts from this and...Ch. 7 - Which ions in the following list are not likely to...Ch. 7 - Answer the following questions about first...Ch. 7 - The ionization of the hydrogen atom can be...Ch. 7 - Compare the configurations below with two...Ch. 7 - Prob. 68SCQCh. 7 - Write electron configurations to show the first...Ch. 7 - Prob. 70SCQCh. 7 - (a) Explain why the sizes of atoms change when...Ch. 7 - Which of the following elements has the greatest...Ch. 7 - Prob. 73SCQCh. 7 - Prob. 74SCQCh. 7 - The energies of the orbitals in many elements have...Ch. 7 - The ionization energies for the removal of the...Ch. 7 - Using your knowledge of the trends in element...Ch. 7 - Prob. 78SCQCh. 7 - Prob. 79SCQCh. 7 - Prob. 80SCQCh. 7 - Thionyl chloride. SOCl2, is an important...Ch. 7 - Prob. 82SCQCh. 7 - Slaters rules are a way to estimate the effective...
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