CHEMISTRY+CHEM...HYBRID ED.(LL)>CUSTOM<
9th Edition
ISBN: 9781305020788
Author: John C.Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher: CENGAGE C
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Question
Chapter 3, Problem 8PS
Interpretation Introduction
Interpretation:
The equation that explains an equilibrium in each solution has to be written and observed conductivity difference should be explained.
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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 3 Solutions
CHEMISTRY+CHEM...HYBRID ED.(LL)>CUSTOM<
Ch. 3.1 - The reaction of aluminum with bromine is shown...Ch. 3.1 - If you were to use 8000 atoms of Al, how many...Ch. 3.2 - (a) Butane gas, C4H10, can burn completely in air...Ch. 3.2 - The (unbalanced) equation describing the oxidation...Ch. 3.3 - Prob. 1RCCh. 3.4 - Predict whether each of the following ionic...Ch. 3.4 - Prob. 1RCCh. 3.4 - Prob. 2RCCh. 3.4 - Prob. 3RCCh. 3.5 - In each of the following cases, does a...
Ch. 3.5 - In each of the following cases, aqueous solutions...Ch. 3.5 - Prob. 1RCCh. 3.5 - What is the net ionic equation for the reaction of...Ch. 3.6 - Prob. 1CYUCh. 3.6 - Prob. 2CYUCh. 3.6 - Prob. 1RCCh. 3.6 - 2. The hydrogen phosphate ion is amphiprotic....Ch. 3.6 - What is the net ionic equation for the reaction of...Ch. 3.6 - Prob. 4RCCh. 3.7 - Prob. 1CYUCh. 3.7 - Prob. 1RCCh. 3.8 - Assign an oxidation number to the underlined atom...Ch. 3.8 - Prob. 2CYUCh. 3.8 - 1. What is the oxidation number of Mn in...Ch. 3.8 - Prob. 2RCCh. 3.8 - 3. In which of the manganese compounds below does...Ch. 3.9 - Prob. 1CYUCh. 3.9 - 1. Sometimes a reaction can fall in more than one...Ch. 3.9 - Prob. 1QCh. 3.9 - Prob. 2QCh. 3.9 - Prob. 3QCh. 3.9 - Prob. 4QCh. 3.9 - Prob. 5QCh. 3 - Write balanced chemical equations for the...Ch. 3 - Write balanced chemical equations for the...Ch. 3 - Prob. 3PSCh. 3 - Prob. 4PSCh. 3 - Prob. 5PSCh. 3 - Balance the following equations, and name each...Ch. 3 - Equal amounts of two acidsHCl and HCO2H (formic...Ch. 3 - Prob. 8PSCh. 3 - What is an electrolyte? How can you differentiate...Ch. 3 - Name and give the formulas of two acids that are...Ch. 3 - Which compound or compounds in each of the...Ch. 3 - Which compound or compounds in each of the...Ch. 3 - The following compounds are water-soluble. What...Ch. 3 - The following compounds are water-soluble. What...Ch. 3 - Decide whether each of the following is...Ch. 3 - Decide whether each of the following is...Ch. 3 - Balance the equation for the following...Ch. 3 - Balance the equation for the following...Ch. 3 - Predict the products of each precipitation...Ch. 3 - Prob. 20PSCh. 3 - Write a balanced equation for the ionization of...Ch. 3 - Write a balanced equation for the ionization of...Ch. 3 - Prob. 23PSCh. 3 - Phosphoric add can supply one, two, or three H3O+...Ch. 3 - Prob. 25PSCh. 3 - Prob. 26PSCh. 3 - Prob. 27PSCh. 3 - Prob. 28PSCh. 3 - Prob. 29PSCh. 3 - Prob. 30PSCh. 3 - Write an equation that describes the equilibrium...Ch. 3 - Write an equation that describes the equilibrium...Ch. 3 - Prob. 33PSCh. 3 - Write two chemical equations, one in which H2PO4...Ch. 3 - Balance the following equations, and then write...Ch. 3 - Balance the following equations, and then write...Ch. 3 - Prob. 37PSCh. 3 - Balance each of the following equations, and then...Ch. 3 - Write balanced net ionic equations for the...Ch. 3 - Write balanced net ionic equations for the...Ch. 3 - Siderite is a mineral consisting largely of...Ch. 3 - The mineral rhodothrosite is manganese()...Ch. 3 - Prob. 43PSCh. 3 - Prob. 44PSCh. 3 - Determine the oxidation number of each element in...Ch. 3 - Determine the oxidation number of each element in...Ch. 3 - Prob. 47PSCh. 3 - Which two of the following reactions are...Ch. 3 - In the following reactions, decide which reactant...Ch. 3 - In the following reactions, decide which reactant...Ch. 3 - Balance the following equations, and then classify...Ch. 3 - Prob. 52PSCh. 3 - Classify each of the following reactions as a...Ch. 3 - Prob. 54PSCh. 3 - Balance each of the following equations, and...Ch. 3 - Complete and balance the equations below, and...Ch. 3 - Prob. 57PSCh. 3 - Prob. 58PSCh. 3 - Balance the following equations: (a) for the...Ch. 3 - Balance the following equations: (a) for the...Ch. 3 - Prob. 61GQCh. 3 - Give the formula for each of the following...Ch. 3 - Prob. 63GQCh. 3 - Name two anions that combine with Al3+ ion to...Ch. 3 - Write the net ionic equation and identify the...Ch. 3 - Identify and name the water-insoluble product in...Ch. 3 - Bromine is obtained from sea water by the...Ch. 3 - Identify each of the blowing substances as a...Ch. 3 - The mineral dolomite contains magnesium...Ch. 3 - Aqueous solutions of ammonium sulfide, (NH4)2S,...Ch. 3 - Prob. 71GQCh. 3 - Prob. 72GQCh. 3 - Balance equations for these reactions that occur...Ch. 3 - Prob. 74GQCh. 3 - You are given mixtures containing the following...Ch. 3 - Identify, from each list below, the compound or...Ch. 3 - Prob. 77GQCh. 3 - Prob. 78GQCh. 3 - Gas evolution was observed when a solution of Na2S...Ch. 3 - Prob. 81ILCh. 3 - Prob. 82ILCh. 3 - Prob. 83ILCh. 3 - A Suggest a laboratory method for preparing barium...Ch. 3 - The Toliens test for the presence of reducing...Ch. 3 - There are many ionic compounds that dissolve in...Ch. 3 - Most naturally occurring acids are weak acids....Ch. 3 - You want to prepare barium chloride, BaC12, using...Ch. 3 - Prob. 89SCQCh. 3 - A Describe how to prepare zinc chloride by (a) an...Ch. 3 - A common method for analyzing for the nickel...Ch. 3 - The presence of arsenic in a sample that may also...
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