CHEMISTRY+CHEM...(LL)-W/ACCESS >CUSTOM<
10th Edition
ISBN: 9780357096949
Author: Kotz
Publisher: CENGAGE C
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Textbook Question
Chapter 21, Problem 77PS
The halogen oxides and oxoanions are good oxidizing agents. For example, the reduction of bromate ion has an E° value of 1.44 V in acid solution:
Is it possible to oxidize aqueous 1.0 M Mn2+ to aqueous MnO4− with 1.0 M bromate ion?
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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 21 Solutions
CHEMISTRY+CHEM...(LL)-W/ACCESS >CUSTOM<
Ch. 21.2 - Prob. 21.1CYUCh. 21.2 - Write the formula for each of the following (a)...Ch. 21.2 - Prob. 21.3CYUCh. 21.2 - Prob. 21.4CYUCh. 21.11 - Prob. 1.1ACPCh. 21.11 - Prob. 1.2ACPCh. 21.11 - Prob. 1.3ACPCh. 21.11 - Draw the Lewis structure of ammonia borane. What...Ch. 21.11 - Calculate the mass of hydrogen in 1.00 kg of...Ch. 21.11 - What is the hydrogen density (mass H2 per liter)...
Ch. 21.11 - The best catalysts used to accelerate the...Ch. 21.11 - Prob. 2.5ACPCh. 21 - Which of the following formulas is incorrect? (a)...Ch. 21 - The reaction of elemental phosphorus and excess...Ch. 21 - Like sulfur, selenium forms compounds in several...Ch. 21 - Prob. 4PSCh. 21 - Give examples of two basic oxides. Write equations...Ch. 21 - Prob. 6PSCh. 21 - Prob. 7PSCh. 21 - Prob. 8PSCh. 21 - Prob. 9PSCh. 21 - Prob. 10PSCh. 21 - For the product of the reaction you selected in...Ch. 21 - For the product of the reaction you selected in...Ch. 21 - Prob. 13PSCh. 21 - Prob. 14PSCh. 21 - Place the following oxides in order of increasing...Ch. 21 - Place the following oxides in order of increasing...Ch. 21 - Prob. 17PSCh. 21 - Prob. 18PSCh. 21 - Prob. 19PSCh. 21 - Prob. 20PSCh. 21 - Prob. 21PSCh. 21 - Prob. 22PSCh. 21 - Prob. 23PSCh. 21 - Prob. 24PSCh. 21 - Prob. 25PSCh. 21 - Prob. 26PSCh. 21 - Prob. 27PSCh. 21 - The compound Na2O2 consists of (a) two Na+ ions...Ch. 21 - Prob. 29PSCh. 21 - Write balanced equations for the reaction of...Ch. 21 - Prob. 31PSCh. 21 - (a) Write equations for the half-reactions that...Ch. 21 - Prob. 33PSCh. 21 - Prob. 34PSCh. 21 - When magnesium bums in air, it forms both an oxide...Ch. 21 - Prob. 36PSCh. 21 - Prob. 37PSCh. 21 - Prob. 38PSCh. 21 - Calcium oxide, CaO, is used to remove SO2 from...Ch. 21 - Prob. 40PSCh. 21 - Prob. 41PSCh. 21 - The element below aluminum in Group 3A is gallium,...Ch. 21 - Prob. 43PSCh. 21 - The boron trihalides (except BF3) hydrolyze...Ch. 21 - When boron hydrides burn in air, the reactions are...Ch. 21 - Prob. 46PSCh. 21 - Write balanced equations for the reactions of...Ch. 21 - Prob. 48PSCh. 21 - Prob. 49PSCh. 21 - Alumina, Al2O3, is amphoteric. Among examples of...Ch. 21 - Prob. 51PSCh. 21 - Prob. 52PSCh. 21 - Prob. 53PSCh. 21 - Silicon and oxygen form a six-membered ring in the...Ch. 21 - Describe the structure of pyroxenes (see page...Ch. 21 - Describe how ultrapure silicon can be produced...Ch. 21 - Prob. 57PSCh. 21 - Prob. 58PSCh. 21 - Prob. 59PSCh. 21 - Prob. 60PSCh. 21 - Prob. 61PSCh. 21 - Prob. 62PSCh. 21 - Prob. 63PSCh. 21 - The overall reaction involved in the industrial...Ch. 21 - Prob. 65PSCh. 21 - Prob. 66PSCh. 21 - Prob. 67PSCh. 21 - Prob. 68PSCh. 21 - Prob. 69PSCh. 21 - Which statement about oxygen is not true? (a)...Ch. 21 - Prob. 71PSCh. 21 - Prob. 72PSCh. 21 - Prob. 73PSCh. 21 - Sulfur forms a range of compounds with fluorine....Ch. 21 - Prob. 75PSCh. 21 - Which of the following statements is not correct?...Ch. 21 - The halogen oxides and oxoanions are good...Ch. 21 - Prob. 78PSCh. 21 - Bromine is obtained from brine wells. The process...Ch. 21 - Prob. 80PSCh. 21 - Prob. 81PSCh. 21 - Halogens combine with one another to produce...Ch. 21 - Prob. 83PSCh. 21 - Prob. 84PSCh. 21 - The standard enthalpy of formation of XeF4 is 218...Ch. 21 - Draw the Lewis electron dot structure for XeO3F2....Ch. 21 - Prob. 87PSCh. 21 - Prob. 88PSCh. 21 - Prob. 89GQCh. 21 - Prob. 90GQCh. 21 - Consider the chemistries of the elements...Ch. 21 - When BCl3 gas is passed through an electric...Ch. 21 - Prob. 93GQCh. 21 - Prob. 94GQCh. 21 - Prob. 95GQCh. 21 - Prob. 96GQCh. 21 - Prob. 97GQCh. 21 - Prob. 98GQCh. 21 - Prob. 99GQCh. 21 - Prob. 100GQCh. 21 - Prob. 101GQCh. 21 - Prob. 102GQCh. 21 - Prob. 103GQCh. 21 - Prob. 105GQCh. 21 - Prob. 106GQCh. 21 - A Boron and hydrogen form an extensive family of...Ch. 21 - In 1774, C. Scheele obtained a gas by reacting...Ch. 21 - The chemistry of gallium: (a) Gallium hydroxide,...Ch. 21 - Prob. 111GQCh. 21 - Prob. 112GQCh. 21 - Prob. 113GQCh. 21 - Prob. 114GQCh. 21 - Prob. 115ILCh. 21 - Prob. 116ILCh. 21 - Prob. 117ILCh. 21 - Prob. 118ILCh. 21 - Prob. 119ILCh. 21 - Prob. 120ILCh. 21 - Prob. 121SCQCh. 21 - Prob. 122SCQCh. 21 - Prob. 123SCQCh. 21 - Prob. 124SCQCh. 21 - Prob. 125SCQCh. 21 - Prob. 126SCQCh. 21 - Prob. 127SCQCh. 21 - Prob. 128SCQCh. 21 - Comparing the chemistry of carbon and silicon. (a)...Ch. 21 - Prob. 130SCQCh. 21 - Xenon trioxide, XeO3, reacts with aqueous base to...
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