Chemistry & Chemical Reactivity
10th Edition
ISBN: 9781337670418
Author: Kotz
Publisher: Cengage
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Textbook Question
Chapter 3, Problem 39PS
Write an equation that describes the equilibrium that exists when nitric acid dissolves in water. Identify each of the four species in solution as either Brønsted acids or Brønsted bases. Does the equilibrium favor the products or the reactants?
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(a) The following synthesis of the molecule shown in the circle has a major problem. What is this problem? (2
pts)
1) HBr
(no peroxides)
2) H-
NaNH2
Br
3) NaNH,
4) CH3Br
5) H2, Pd
(b) Starting with the molecule shown below and any other materials with two carbons or less, write out an
alternate synthesis of the circled molecule. More than one step is needed. Indicate the reagent(s) and the major
product in all the steps in your synthesis. (5 pts)
2024 Fall Term (1) Organic Chemistry 1 (Lec)
CHEM 22204 02[6386] (Hunter College)
(c) Using the same starting material as in part (b) and any other materials win two carpons or less, write out
syntheses of the circled molecules shown below. More than one step is needed in each case. Indicate the
reagent(s) and the major product in all the steps in your synthesis. You may use reactions and products from
your synthesis in part (b). (5 pts)
alt
ons for
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
Chapter 3 Solutions
Chemistry & Chemical Reactivity
Ch. 3.2 - (a) Butane gas, C4H10, can burn completely in air...Ch. 3.4 - Predict whether each of the following ionic...Ch. 3.5 - In each of the following cases, does a...Ch. 3.5 - In each of the following cases, aqueous solutions...Ch. 3.6 - Prob. 3.5CYUCh. 3.6 - Prob. 3.6CYUCh. 3.7 - Prob. 3.7CYUCh. 3.8 - Assign an oxidation number to the underlined atom...Ch. 3.8 - Prob. 3.9CYUCh. 3.9 - Prob. 3.10CYU
Ch. 3.9 - Prob. 1.1ACPCh. 3.9 - Prob. 1.2ACPCh. 3.9 - Prob. 1.3ACPCh. 3.9 - Prob. 1.4ACPCh. 3.9 - Prob. 1.5ACPCh. 3.9 - Prob. 2.1ACPCh. 3.9 - Prob. 2.2ACPCh. 3.9 - Prob. 3.1ACPCh. 3.9 - Prob. 3.2ACPCh. 3 - The equation for the oxidation of phosphorus in...Ch. 3 - Write an equation from the following description:...Ch. 3 - The equation for the reaction of phosphorus and...Ch. 3 - The equation for the reaction of aluminum and...Ch. 3 - Oxidation of 1.00 g of carbon monoxide, CO,...Ch. 3 - A 0.20 mol sample of magnesium burns in air to...Ch. 3 - Write balanced chemical equations for the...Ch. 3 - Write balanced chemical equations for the...Ch. 3 - Prob. 9PSCh. 3 - Prob. 10PSCh. 3 - Prob. 11PSCh. 3 - Balance the following equations, and name each...Ch. 3 - Prob. 13PSCh. 3 - Prob. 14PSCh. 3 - Equal amounts of two acidsHCl and HCO2H (formic...Ch. 3 - Prob. 16PSCh. 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. 28PSCh. 3 - Write a balanced equation for the ionization of...Ch. 3 - Write a balanced equation for the ionization of...Ch. 3 - Prob. 31PSCh. 3 - Phosphoric add can supply one, two, or three H3O+...Ch. 3 - Prob. 33PSCh. 3 - Prob. 34PSCh. 3 - Prob. 35PSCh. 3 - Prob. 36PSCh. 3 - Prob. 37PSCh. 3 - Prob. 38PSCh. 3 - Write an equation that describes the equilibrium...Ch. 3 - Write an equation that describes the equilibrium...Ch. 3 - Prob. 41PSCh. 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. 45PSCh. 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. 51PSCh. 3 - Prob. 52PSCh. 3 - Determine the oxidation number of each element in...Ch. 3 - Determine the oxidation number of each element in...Ch. 3 - Prob. 55PSCh. 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. 60PSCh. 3 - Classify each of the following reactions as a...Ch. 3 - Prob. 62PSCh. 3 - Balance each of the following equations, and...Ch. 3 - Complete and balance the equations below, and...Ch. 3 - Prob. 65PSCh. 3 - Prob. 66PSCh. 3 - Balance the following equations: (a) for the...Ch. 3 - Balance the following equations: (a) for the...Ch. 3 - Prob. 69GQCh. 3 - Give the formula for each of the following...Ch. 3 - Prob. 71GQCh. 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. 79GQCh. 3 - Prob. 80GQCh. 3 - Balance equations for these reactions that occur...Ch. 3 - Prob. 82GQCh. 3 - You are given mixtures containing the following...Ch. 3 - Identify, from each list below, the compound or...Ch. 3 - Prob. 85GQCh. 3 - Prob. 86GQCh. 3 - Gas evolution was observed when a solution of Na2S...Ch. 3 - Prob. 89ILCh. 3 - Prob. 90ILCh. 3 - Prob. 91ILCh. 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. 97SCQCh. 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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- 8:07 AM Wed Dec 18 Final Exam 2024 copy Home Insert Draw Page Layout Formulas Data Review AA 田 General A G fx Alexis Cozort ☑ ⚫ 61% A B D E F H K M N P R S T U 3+ 10 125 mM that yielded peak heights of Aa = 9 1-(a)A sample solution was examined under XRF to quantify the analyte Ce³+. Find the response factor F, when standardized concentration of analyte [Ce³+]A = concentration of internal standard S i.e. [In³*]s = 151 mM was spiked with standardized 1600 and As = 3015 respectively? 11 12 (i)Define F, F = Aa As [A] [S] + X 13 (*Define with variables) 4000 14 15 (ii)Calculate F, F = numeral (You will use the F value in part 1-(b) below) As 16 (*Calculate with numerals) 17 18 1-(b)To determine the unknown conc of analyte [Ce³+], a volume of 15 mL of internal standard S having a concentration [In³+]s = 0.264 M 19 20 was added to 45 mL of unknown, and the mixture was diluted to 100 mL in a volumetric flask. XRF analysis yielded a spectrum, Figure-1, where peak heights A and As are…arrow_forwardAll structural types of Boron hydrides exhibit B-B, B-H-B and B-H bonds. Correct?arrow_forwardN-nitrosodimethylamine (NDMA) is a suspected carcinogen that can form via reactions between dimethylamine (DMA) and monochloramine (NH2Cl). The relevant elementary reactions and the corresponding rate constants are as shown below. Reaction Rate constant (M¹s¹) DMA + NH2Cl = DMCA + NH3 k =1.4×10-1, kr = 5.83×10-3 1.28×10-3 DMA + NH2Cl → UDMH UDMH + NH2Cl → NDMA -> 1.11×10-1 If the initial concentrations of DMA and NH2Cl are given, you should be able to predict the concentrations of all species at any given reaction time. Please write down the rate equations for DMA, NH2C1, DMCA, UDMH and NDMA.arrow_forward
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