Chemistry and Chemical Reactivity - AP Edition
10th Edition
ISBN: 9781337399203
Author: Kotz
Publisher: CENGAGE L
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Textbook Question
Chapter 15, Problem 37GQ
The equilibrium constant for the butane ⇄ isobutane isomerization reaction is 2.5 at 25 °C. If 1.75 mol of butane and 1.25 mol of isobutane are mixed, is the system at equilibrium? If not, when it proceeds to equilibrium, which reagent increases in concentration? Calculate the concentrations of the two compounds when the system reaches equilibrium.
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There is an instrument in Johnson 334 that measures total-reflectance x-ray fluorescence (TXRF) to do elemental analysis (i.e., determine what elements are present in a sample). A researcher is preparing a to measure calcium content in a series of well water samples by TXRF with an internal standard of vanadium (atomic symbol: V). She has prepared a series of standard solutions to ensure a linear instrument response over the expected Ca concentration range of 40-80 ppm. The concentrations of Ca and V (ppm) and the instrument response (peak area, arbitrary units) are shown below. Also included is a sample spectrum. Equation 1 describes the response factor, K, relating the analyte signal (SA) and the standard signal (SIS) to their respective concentrations (CA and CIS).
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A mixture of 0.568 M H₂O, 0.438 M Cl₂O, and 0.710 M HClO are enclosed in a vessel at 25 °C.
H₂O(g) + C₁₂O(g) = 2 HOCl(g)
K = 0.0900 at 25°C
с
Calculate the equilibrium concentrations of each gas at 25 °C.
[H₂O]=
[C₁₂O]=
[HOCI]=
M
Σ
M
What units (if any) does the response factor (K) have? Does the response factor (K) depend upon how the concentration is expressed (e.g. molarity, ppm, ppb, etc.)?
Chapter 15 Solutions
Chemistry and Chemical Reactivity - AP Edition
Ch. 15.2 - Write the equilibrium constant expression for each...Ch. 15.2 - Answer the following questions regarding the...Ch. 15.3 - A solution is prepared by dissolving 0.050 mol of...Ch. 15.4 - At some temperature. Kc = 33 for the reaction...Ch. 15.4 - The decomposition of PCl5(g) to form PCl3(g) and...Ch. 15.5 - The conversion of oxygen to ozone has a very small...Ch. 15.6 - Equilibrium exists between butane and isobutane...Ch. 15.6 - Anhydrous ammonia is used directly as a...Ch. 15.6 - Prob. 1.2ACPCh. 15.6 - Freezing point depression is one means of...
Ch. 15.6 - Prob. 2.2ACPCh. 15.6 - A 0.64 g sample of the white crystalline dimer (4)...Ch. 15.6 - Predict whether the dissociation of the dimer to...Ch. 15.6 - Prob. 2.5ACPCh. 15 - Write equilibrium constant expressions for the...Ch. 15 - Write equilibrium constant expressions for the...Ch. 15 - Kc = 5.6 1012 at 500 K for the dissociation of...Ch. 15 - The reaction 2 NO2(g) N2O4(g) has an equilibrium...Ch. 15 - A mixture of SO2, O2, and SO3 at 1000 K contains...Ch. 15 - The equilibrium constant Kc, for the reaction 2...Ch. 15 - The reaction PCl5(g) PCl3(g) + Cl2(g) was...Ch. 15 - An equilibrium mixture of SO2, O2, and SO3 at a...Ch. 15 - The reaction C(s) + CO2(g) 2 CO(g) occurs at high...Ch. 15 - Hydrogen and carbon dioxide react at a high...Ch. 15 - A mixture of CO and Cl2 is placed in a reaction...Ch. 15 - You place 0.0300 mol of pure SO3 in an 8.00-L...Ch. 15 - The value of Kc for the interconversion of butane...Ch. 15 - Cyclohexane, C6H12, a hydrocarbon, can isomerize...Ch. 15 - The equilibrium constant for the dissociation of...Ch. 15 - The equilibrium constant, Kc, for the reaction...Ch. 15 - Carbonyl bromide decomposes to carbon monoxide and...Ch. 15 - Iodine dissolves in water, but its solubility in a...Ch. 15 - Which of the following correctly relates the...Ch. 15 - Which of the following correctly relates the...Ch. 15 - Consider the following equilibria involving SO2(g)...Ch. 15 - The equilibrium constant K for the reaction CO2(g)...Ch. 15 - Calculate K for the reaction SnO2(s) + 2 CO(g) ...Ch. 15 - Calculate K for the reaction Fe(s) + H2O(g) ...Ch. 15 - Relationship of Kc and Kp: (a) Kp for the...Ch. 15 - Relationship of Kc and Kp: (a) The equilibrium...Ch. 15 - Dinitrogen trioxide decomposes to NO and NO2, in...Ch. 15 - Kp for the following reaction is 0.16 at 25 C: 2...Ch. 15 - Consider the isomerization of butane with an...Ch. 15 - The decomposition of NH4HS NH4HS(s) NH3(g) +...Ch. 15 - Suppose 0.086 mol of Br2 is placed in a 1.26-L...Ch. 15 - The equilibrium constant for the reaction N2(g) +...Ch. 15 - Kp for the formation of phosgene, COCl2, is 6.5 ...Ch. 15 - The equilibrium constant, Kc, for the following...Ch. 15 - Carbon tetrachloride can be produced by the...Ch. 15 - Equal numbers of moles of H2 gas and I2 vapor are...Ch. 15 - The equilibrium constant for the butane isobutane...Ch. 15 - At 2300 K the equilibrium constant for the...Ch. 15 - Which of the following correctly relates the two...Ch. 15 - Consider the following equilibrium: COBr2(g) ...Ch. 15 - Heating a metal carbonate leads to decomposition....Ch. 15 - Phosphorus pentachloride decomposes at elevated...Ch. 15 - Ammonium hydrogen sulfide decomposes on heating....Ch. 15 - Ammonium iodide dissociates reversibly to ammonia...Ch. 15 - When solid ammonium carbamate sublimes, it...Ch. 15 - In the gas phase, acetic acid exists as an...Ch. 15 - Assume 3.60 mol of ammonia is placed in a 2.00-L...Ch. 15 - The total pressure for a mixture of N2O4 and NO2...Ch. 15 - Kc for the decomposition of ammonium hydrogen...Ch. 15 - Prob. 52GQCh. 15 - A 15-L flask at 300 K contains 6.44 g of a mixture...Ch. 15 - Lanthanum oxalate decomposes when heated to...Ch. 15 - The reaction of hydrogen and iodine to give...Ch. 15 - Sulfuryl chloride, SO2Cl2 is used as a reagent in...Ch. 15 - Hemoglobin (Hb) can form a complex with both O2...Ch. 15 - Limestone decomposes at high temperatures....Ch. 15 - At 1800 K, oxygen dissociates very slightly into...Ch. 15 - Nitrosyl bromide, NOBr, dissociates readily at...Ch. 15 - A Boric acid and glycerin form a complex...Ch. 15 - The dissociation of calcium carbonate has an...Ch. 15 - A sample of N2O4 gas with a pressure of 1.00 atm...Ch. 15 - Prob. 64GQCh. 15 - The photograph below shows what occurs when a...Ch. 15 - The photographs below (a) show what occurs when a...Ch. 15 - Decide whether each of the following statements is...Ch. 15 - Neither PbCl2 nor PbF2 is appreciably soluble in...Ch. 15 - Characterize each of the following as product- or...Ch. 15 - The size of a flask containing colorless N2O4(g)...Ch. 15 - Describe an experiment that would allow you to...Ch. 15 - The chapter opening photograph (page 670) showed...Ch. 15 - Suppose a tank initially contains H2S at a...Ch. 15 - Pure PCl5 gas is placed in a 2.00-L flask. After...
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