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257 solutions

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Q. Consider the equilibrium reaction 2A + B ⇌ 4CAfter multiplying the reaction by a factor of 2, what is the new equilibrium equation? Drag the follow...

Solved • Apr 27, 2020

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Q. At 2000°C the equilibrium constant for the reaction2NO(g) ⇌ N2(g) + O2(g)is Kc = 2.4 × 103. The initial concentration of NO is 0.200 M .a) What is ...

Solved • Apr 23, 2020

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Q. Exactly 1.0 mol N2O4 is placed in an empty 1.0-L container and allowed to reach equilibrium described by the equationN2O4(g) ⇌ 2NO2(g).If at equili...

Solved • Feb 17, 2020

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Q. Given2SO2(g) + O2(g) ⇌ 2SO3(g)Suppose 0.10 mol of SO2 and 0.10 mol of O2 are added to a 1-L vessel. At equilibrium, which of the following conditio...

Solved • Feb 17, 2020

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Q. Br2(g) + 3F2(g) ⇌ 2BrF3(g)       Kp = 5.4 x 105A container initially contains 0.30 atm Br2(g) and 0.60 atm F2(g). What is the pressure of Br2(g) at...

Solved • Feb 7, 2020

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Q. Consider the reaction: 2SO2(g) + O2(g) ⇌ 2SO3(g)When 0.60 atm of SO2 and 0.40 atm of O2 are placed in a container, the reaction proceeds and it is ...

Solved • Feb 7, 2020

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Q. 2CO2(g) ⇌ 2CO(g) + O2(g)      Kc = 2.0 x 10-7If 2.0 mol of CO2 is placed in a 5.0 Liter container, and decomposes according to the above equation, ...

Solved • Feb 6, 2020

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Q. Equal numbers of moles of H2 and I2 were mixed in a 3 liter flask and heated to 700 C. The initial concentration of each gas was 0.0088 M. They rea...

Solved • Feb 4, 2020

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Q. 1.00 moles of COBr2 were placed in a 2.00 liter flask and heated to 73 °C. At that temperature, Kc = 0.190 for the reaction COBr2(g) ⇌ CO(g) + Br2(...

Solved • Feb 4, 2020

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Q. At 200 °C, the equilibrium constant (Kp) for the reaction below is 2.44 x 103.2NO (g) ⇌ N2 (g) + O2 (g)A closed vessel is charged with 26.1 atm of ...

Solved • Jan 27, 2020

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Q. Consider the reaction A + 2B → C where [A]0, [B]0, and [C]0 are initial concentrations and x is the extent of the reaction at some time t. What wil...

Solved • Jan 24, 2020

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Q. An important step in the industrial production of hydrogen is the reaction of carbon monoxide with water (i.e. the water gas shift reaction):CO (g)...

Solved • Dec 20, 2019

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Q. A container initially contains 2.0 atm SO3, 1.5 atm SO2 (g) and 1.0 atm O2 (g) and is allowed to reach equilibrium. What is the equilibrium partial...

Solved • Dec 19, 2019

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Q. At a high temperature, equal concentrations of 0.160 mol/L of H2(g) and I2(g) are initially present in a flask. The H2 and I2 react according to th...

Solved • Dec 19, 2019

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Q. Given that Kp = 1.5 x 10-4 for the reaction 2 CO(g) <=> C(graphite) + CO2(g), what is the partial pressure of CO2(g) at equilibrium if initia...

Solved • Dec 19, 2019

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Q. When 0.60 mol NH 3 is decomposed in a 1 Liter flask at 850 K, the equilibrium concentration of NH3 is measured as 0.12 M. Given that ammonia decomp...

Solved • Dec 19, 2019

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Q. Given that K p = 1.5 x 10 -4 for the reaction 2 CO(g) <=> C(graphite) + CO 2(g), what is the partial pressure of CO 2(g) at equilibrium if in...

Solved • Dec 19, 2019

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Q. What is the value of Kc for the reaction H2(g) + F2(g) <=> 2HF(g) given that when 0.010 mol H2 and 0.050 mol F2 are added to a 1.00 L contain...

Solved • Dec 16, 2019

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Q. A 1.00 liter flask contained 0.24 mol NO2 at 700 K which decomposed according to the reaction 2 NO2(g) ⇌ 2NO(g) + O2(g). Determine Kc given that wh...

Solved • Dec 12, 2019

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Q. At a given temperature, 3.7 atm of H2 and 1.09 atm of Br2 are mixed and allowed to come to equilibrium. The equilibrium pressure of HBr is found to...

Solved • Dec 11, 2019

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Q. A sample of solid NH4NO3 was placed in an evacuated container and then heated so that it decomposed according to the following equation and establi...

Solved • Nov 13, 2019

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Q. The following reaction has a Kc at 520. K equal to 1.50 × 10–8:2 A(aq) + B(aq) ⇌ 2 C(aq)If the reaction is started with 0.100 M A and 0.100 M B, wh...

Solved • Nov 13, 2019

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Q. Consider the reaction:    N2(g) + O2(g) ⇌ 2 NO(g)for which Kc = 0.10 at 2,000 °C. Starting with initial concentrations of 0.15 M N2 and 0.15 M O2, ...

Solved • Nov 12, 2019

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Q. At a given temperature, the equilibrium constant for the reaction H2(g) + I2(g) ⇌ 2 HI(g) is 4.0. After equal moles of H2(g) and I2(g) are mixed, t...

Solved • Nov 11, 2019

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Q. Mustard gas, S(CH2CH2Cl)2 can be made at room temperature as shown:SCl2(g) + 2 C2H4(g) <=> S(CH2CH2Cl)2(g)In a particular experiment, 0.816 M...

Solved • Nov 1, 2019

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Q. For the reaction, Kc = 255 at 1000 K.CO(g) + Cl2(g) → COCl2(g)If a reaction mixture initially contains a CO concentration of 0.1550 M and a Cl2 con...

Solved • Jul 10, 2019

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Q. The decomposition of HI(g) is represented by the equation2HI(g) ⇌ H2(g) + I2(g)The following experiment was devised to determine the equilibrium co...

Solved • Jul 9, 2019

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Q. Consider the hypothetical reaction A(g) 2B(g). A flask is charged with 0.76 atm of pure A, after which it is allowed to reach equilibrium at 0 oC....

Solved • Dec 11, 2018

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Q. A chemist at a pharmaceutical company is measuring equilibrium constants for reactions in which drug candidate molecules bind to a protein involved...

Solved • Dec 11, 2018

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Q. A chemist at a pharmaceutical company is measuring equilibrium constants for reactions in which drug candidate molecules bind to a protein involved...

Solved • Dec 11, 2018

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Q. A mixture of 1.374 g of H2 and 70.31 g of Br2 is heated in a 2.00 L vessel at 700 K . These substances react as follows:H2(g) + Br2(g) 2HBr(g)At eq...

Solved • Dec 11, 2018

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Q. The reaction N2(g) + O2(g) ⇌ 2NO(g) is carried out at a temperature at which Kc = 0.060. The reaction mixture starts with only the product, [NO] = ...

Solved • Dec 11, 2018

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Q. Consider the reaction for the decomposition of hydrogen disulfide: 2H2S(g) ⇌ 2H2(g) + S2(g), Kc = 1.67 x 10–7 at 800 oC. A 0.500 L reaction vessel ...

Solved • Dec 11, 2018

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Q. Consider the following reaction: I2(g) + Cl2(g) ⇌ 2ICl(g), Kp = 81.9 (at 25 oC)A reaction mixture at 25oC initially contains PI2 = 0.160 atm, PCl2 ...

Solved • Dec 11, 2018

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Q. Consider the following reaction: I2(g) + Cl2(g) ⇌ 2ICl(g), Kp = 81.9 (at 25 oC)A reaction mixture at 25oC initially contains PI2 = 0.160 atm, PCl2 ...

Solved • Dec 11, 2018

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Q. Consider the following reaction: 2CH4(g) ⇌ C2H2(g) + 3H2(g)The reaction of CH4 is carried out at some temperature with an initial concentration of ...

Solved • Dec 11, 2018

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Q. For the following reaction, Kc = 255 at 1000 K: CO(g) + Cl2(g) ⇌ COCl2(g)If a reaction mixture initially contains a CO concentration of 0.1510 and ...

Solved • Dec 11, 2018

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Q. For the following reaction, Kc = 255 at 1000 K: CO(g) + Cl2(g) ⇌ COCl2(g)If a reaction mixture initially contains a CO concentration of 0.1510 and ...

Solved • Dec 11, 2018

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Q. Consider the following reaction: SO2Cl2(g) ⇌ SO2(g) + Cl2(g)A reaction mixture is made containing an initial [SO2Cl2] left[ {{ m{SO}}_2 { m{Cl}}_2 ...

Solved • Dec 11, 2018

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Q. At 700 K, CCl4 decomposes to carbon and chlorine. The Kp for the decomposition is 0.76. Find the starting pressure of CCl4 at this temperature that...

Solved • Dec 11, 2018

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Q. Consider the reaction of A to form B: 2A(g) ⇌ B(g); Kc = 1.9 × 10−5 (at 298 K)A reaction mixture at 298 K initially contains [A] = 0.60 M. What is ...

Solved • Dec 11, 2018

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Q. The reaction X2(g) ⇌ 2X(g) occurs in a closed reaction vessel at constant volume and temperature. Initially, the vessel contains only X2 at a press...

Solved • Dec 11, 2018

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Q. For the generic reaction, A(g) ⇌ B(g), consider each value of K and initial concentration of A. For which set will the x is small approximation mos...

Solved • Dec 11, 2018

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Q. Consider the reaction between NO and Cl2 to form NOCl: 2NO(g) + Cl2(g) ⇌ 2NOCl(g)A reaction mixture at a certain temperature initially contains onl...

Solved • Dec 11, 2018

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Q. Consider the reaction between iodine gas and chlorine gas to form iodine monochloride: I2(g) + Cl2(g) ⇌ 2ICl(g); Kp = 81.9 (at 298 K)A reaction mix...

Solved • Dec 11, 2018

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Q. Solid carbon can react with gaseous water to form carbon monoxide gas and hydrogen gas. The equilibrium constant for the reaction at 700.0 K is Kp ...

Solved • Dec 11, 2018

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Q. Consider the following reaction: 2NO(g) + O 2(g) ⇌ 2NO2(g)A reaction mixture at 175 K initially contains 522 torr of NO and 421 torr of O2. At equi...

Solved • Dec 11, 2018

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Q. Consider the following reaction: 2NO(g) + O2(g) ⇌ 2NO2(g)A reaction mixture at 175 K initially contains 522 torr of NO and 421 torr of O2. At equil...

Solved • Dec 11, 2018

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Q. Consider the following reaction: 2SO2(g) + O2(g) ⇌ 2SO3(g); Kp = 0.355 at 950 KA 2.75-L reaction vessel at 950 K initially contains 0.100 mol of SO...

Solved • Dec 11, 2018

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Q. Nitric oxide reacts with chlorine gas according to the following reaction: 2NO(g) + Cl2(g) ⇌ 2NOCl(g); Kp = 0.27 at 700 KA reaction mixture initial...

Solved • Dec 11, 2018

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Q. When N2O5(g) is heated it dissociates into N2O3(g) and O2(g) according to the following reaction:N2O5(g) ⇌ N2O3(g) + O2(g); Kc = 7.75 at a given te...

Solved • Dec 11, 2018

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Q. Ammonia can be synthesized according to the following reaction: N 2(g) + 3H2(g) ⇌ 2NH3(g); Kp = 5.3 x 10–5 at 725 KA 200.0-L reaction container ini...

Solved • Dec 11, 2018

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Q. Hydrogen can be extracted from natural gas according to the following reaction: CH4(g) + CO2(g) ⇌ 2 CO(g) + 2H2(g);  Kp = 4.5 x 102 at 825 KAn 85.0...

Solved • Dec 11, 2018

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Q. The equilibrium constant for the reaction SO2(g) + NO2(g) ⇌ SO3(g) + NO(g) is 3.1. Find the amount of NO2 that must be added to 2.5 mol of SO2 in o...

Solved • Dec 11, 2018

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Q. Carbon monoxide and chlorine gas react to form phosgene: CO(g) + Cl2(g) ⇌ COCl2(g); Kp = 3.10 at 700 KIf a reaction mixture initially contains 326 ...

Solved • Dec 11, 2018

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Q. At 650 K, the reaction MgCO3(s) ⇌ MgO(s) + CO2(g) has Kp = 0.026. A 12.6 L container at 650 K has 1.0 g of MgO(s) and CO2 at P = 0.0260 atm. The co...

Solved • Dec 11, 2018

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Q. Consider the following reaction: HC2H3O2(aq) + H2O(l) ⇌ H3O+(aq) + C2H3O2–(aq), Kc = 1.8 x 10–5 at 25˚C. If a solution initially contains 0.220 M H...

Solved • Dec 11, 2018

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Q. Consider the following reaction: A(g) ⇌ 2(g)Find the equilibrium partial pressures of A and B for each of the following different values of Kp. Ass...

Solved • Dec 11, 2018

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Q. Consider the following reaction and associated equilibrium constant: aA(g) + bB(g) ⇌ cC(g); Kc exttip{K_{ m c}}{K}= 4.0Find the equilibrium concent...

Solved • Dec 11, 2018

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Q. Consider the following reaction and associated equilibrium constant: aA(g) + bB(g) ⇌ cC(g); Kc = 4.0Find the equilibrium concentrations of A, B, an...

Solved • Dec 11, 2018

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Q. Consider the reaction: NiO(s) + CO(g) ⇌ Ni(s) + CO2(g); Kc =4000.0 at 1500 KWhen calculating the answer, do not round to the appropriate number of ...

Solved • Dec 11, 2018

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Q. Consider the reaction CO(g) + H2O(g) ⇌ CO2(g) + H2(g); Kc = 102 at 500 KA reaction mixture initially contains 0.140 M CO and 0.140 M H2O. What will...

Solved • Dec 11, 2018

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Q. Consider the reaction CO(g) + H2O(g) ⇌ CO2(g) + H2(g); Kc = 102 at 500 KA reaction mixture initially contains 0.140 M CO and 0.140 M H2O. What will...

Solved • Dec 11, 2018

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Q. For the reaction A(g) ⇌ 2 B(g), a reaction vessel initially contains only A at a pressure of PA = 1.26 atm. At equilibrium, PA = 0.28 atm. Calculat...

Solved • Dec 11, 2018

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Q. Consider the following reaction: CO(g) + 2 H2(g) ⇌ CH3OH(g)A reaction mixture in a 5.20-L flask at a certain temperature initially contains 27.0 g ...

Solved • Dec 11, 2018

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Q. For the reaction M2 + N2 ⇌ 2MN, scene A represents the mixture at equilibrium, with M black and N orange. If each molecule represents 0.10 mol and ...

Solved • Nov 8, 2018

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Q. Phosgene (COCl2) is a toxic substance that forms readily from carbon monoxide and chlorine at elevated temperatures: CO(g) + Cl2(g) ⇌ COCl2(g) If 0...

Solved • Nov 8, 2018

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Q. Consider the formation of ammonia in two experiments. (a) To a 1.00-L container at 727°C, 1.30 mol of N 2 and 1.65 mol of H2 are added. At equilibr...

Solved • Nov 8, 2018

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Q. Ammonium carbamate (NH2COONH4) is a salt of carbamic acid that is found in the blood and urine of mammals. At 250°C, Kc = 1.58 x 10−8 for the follo...

Solved • Nov 8, 2018

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Q. The equilibrium constant for the reaction Hg2+(aq) + 2Cl−(aq) ⇌ HgCl2(aq) is 1.6 × 1013. Is HgCl2 a strong electrolyte or a weak electrolyte? What ...

Solved • Nov 8, 2018

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Q. A toxicologist studying mustard gas, S(CH2CH2Cl)2, a blistering agent, prepares a mixture of 0.675 M SCl2 and 0.973 M C2H4 and allows it to react a...

Solved • Nov 7, 2018

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Q. In an analysis of interhalogen reactivity, 0.500 mol of ICl was placed in a 5.00-L flask, where it decomposed at a high T:2ICl(g) ⥫⥬ I2(g) + Cl2(g)...

Solved • Nov 7, 2018

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Q. Nitrogen dioxide decomposes according to the reaction2 NO2(g) ⇌ 2 NO(g) + O2(g)where Kp = 4.48×10−13 at a certain temperature. If 0.75 atm of NO2 i...

Solved • Nov 7, 2018

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Q. Even at high T, the formation of NO is not favored: N2(g) + O2(g) ⇌ 2NO(g)         Kc = 4.10×10−4 at 2000°C What is [NO] when a mixture of 0.20 mol...

Solved • Nov 7, 2018

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Q. Hydrogen sulfide decomposes according to the following reaction, for which K c = 9.30×10−8 at 700°C: 2H2S(g) ⥫⥬ 2H2(g) + S2(g)If 0.45 mol of H2S is...

Solved • Nov 7, 2018

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Q. Ammonium hydrogen sulfide decomposes according to the following reaction, for which Kp = 0.11 at 250°C:  NH4HS(s) ⇌ H2S(g) + NH3(g)If 55.0 g of NH4...

Solved • Nov 7, 2018

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Q. Hydrogen fluoride, HF, can be made by the reactionH2(g) + F2(g) ⥫⥬ 2HF(g)In one experiment, 0.10 mol of H2(g) and 0.050 mol of F2(g) are added to a...

Solved • Nov 7, 2018

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Q. Gaseous PCl5 decomposes according to the reaction PCl5(g) ⥫⥬ PCl3(g) + Cl2(g)In one experiment, 0.15 mol of PCl5(g) was introduced into a 2.0-L con...

Solved • Nov 7, 2018

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Q. A mixture of 3.00 volumes of H2 and 1.00 volume of N2 reacts at 344°C to form ammonia. The equilibrium mixture at 110. atm contains 41.49% NH3 by v...

Solved • Nov 7, 2018

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Q. For the reaction N2O4(g) ⇌ 2NO2(g), Kp = 0.25 at a certain temperature. If 0.040 atm of N2O4 is reacted initially, calculate the equilibrium partia...

Solved • Nov 5, 2018

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Q. At 25ºC, gaseous SO2Cl2 decomposes to SO2(g) and Cl2(g) to the extent that 12.5% of the original SO2Cl2 (by moles) has decomposed to reach equilibr...

Solved • Nov 5, 2018

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Q. At a certain temperature, K = 1.1 x 10 3 for the reactionFe3+(aq) + SCN -(aq) ⇌ FeSCN 2+(aq)Calculate the concentrations of Fe3+, SCN -, and FeSCN2...

Solved • Nov 5, 2018

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Q. The gas arsine, AsH3, decomposes as follows:2AsH3(g) ⇌ 2As(s) + 3H2(g)In an experiment at a certain temperature, pure AsH 3(g) was placed in an emp...

Solved • Nov 5, 2018

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Q. Consider the decomposition of the compound C5H6O3 as follows:C5H6O3(g) → C2H6(g) + 3CO(g)When a 5.63-g sample of pure C5H6O3(g) was sealed into an ...

Solved • Nov 4, 2018

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Q. A sample of solid ammonium chloride was placed in an evacuated container and then heated so that it decomposed to ammonia gas and hydrogen chloride...

Solved • Nov 4, 2018

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Q. At 25ºC, Kp = 2.9 x 10 -3 for the reactionNH4OCONH2(s) ⇌ 2NH3(g) + CO2(g)In an experiment carried out at 25ºC, a certain amount of NH4OCONH2 is pla...

Solved • Nov 4, 2018

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Q. At a particular temperature, K = 4.0 x 10 -7 for the reactionN2O4(g) ⇌ 2NO2(g)In an experiment, 1.0 mole of N2O4 is placed in a 10.0-L vessel. Calc...

Solved • Nov 4, 2018

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Q. At a particular temperature, Kp = 0.25 for the reaction N2O4(g) ⇌ 2NO2(g)b. A flask containing only NO2 at an initial pressure of 9.0 atm is allowe...

Solved • Nov 4, 2018

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Q. At a particular temperature, Kp = 0.25 for the reaction N2O4(g) ⇌ 2NO2(g)a. A flask containing only N2O4 at an initial pressure of 4.5 atm is allow...

Solved • Nov 4, 2018

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Q. At 1100 K, Kp = 0.25 for the reaction2SO2(g) + O2(g) ⇌ 2SO3(g)Calculate the equilibrium partial pressures of SO2, O2, and SO3 produced from an init...

Solved • Nov 4, 2018

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Q. At 25ºC, K = 0.090 for the reactionH2O(g) + Cl2O(g) ⇌ 2HOCl(g)Calculate the concentrations of all species at equilibrium for each of the following ...

Solved • Nov 4, 2018

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Q. At 25ºC, K = 0.090 for the reactionH2O(g) + Cl2O(g) ⇌ 2HOCl(g)Calculate the concentrations of all species at equilibrium for each of the following ...

Solved • Nov 4, 2018

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Q. At 2200ºC, Kp = 0.050 for the reactionN2(g) + O2(g) ⇌ 2NO(g)What is the partial pressure of NO in equilibrium with N 2 and O2 that were placed in a...

Solved • Nov 4, 2018

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Q. An initial mixture of nitrogen gas and hydrogen gas is reacted in a rigid container at a certain temperature by the reaction3H2(g) + N2(g) ⇌ 2NH3(g...

Solved • Nov 4, 2018

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Q. A sample of S8(g) is placed in an otherwise empty rigid container at 1325 K at an initial pressure of 1.00 atm, where it decomposes to S2(g) by the...

Solved • Nov 4, 2018

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Q. A 1.00-L flask was filled with 2.00 moles of gaseous SO 2 and 2.00 moles of gaseous NO2 and heated. After equilibrium was reached, it was found tha...

Solved • Nov 4, 2018

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Q. Calculate the pressures of all species at equilibrium in a mixture of NOCl, NO, and Cl 2 produced when a sample of NOCl with a pressure of 10.0 atm...

Solved • Nov 1, 2018

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Q. What are the concentrations of PCl 5, PCl3, and Cl2 in an equilibrium mixture produced by the decomposition of a sample of pure PCl5 with [PCl5] = ...

Solved • Nov 1, 2018

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Q. What are all concentrations after a mixture that contains [H 2O] = 1.00 M and [Cl 2O] = 1.00 M comes to equilibrium at 25°C?H2O(g) + Cl2O(g) ⇌ 2HOC...

Solved • Nov 1, 2018

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Q. In a 3.0-L vessel, the following equilibrium partial pressures are measured: N 2, 190 torr; H2, 317 torr; NH3, 1.00 × 103 torr. N2(g) + 3H2(g) ⇌ 2N...

Solved • Nov 1, 2018