Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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- Pick the statement that best describes the following reaction at equilibrium. H2(g) + S(s) ↔ H2S(g) Kc = 7.8 x 105 The equilibrium mixture contains mostly reactants. The equilibrium mixture contains mostly products. The equilibrium mixture contains nearly equal amounts of reactant and product. The equilibrium mixture contains only products.arrow_forwardFor the chemical equation SO2(g) + NO2(g) SO3(g) + NO(g) the equilibrium constant at a certain temperature is 2.00. At this temperature, calculate the number of moles of NO2(g) that must be added to 2.86 mol SO2(g) in order to form 1.30 mol SO3(g) at equilibrium. moles of NO2(g): x10 TOOLS molarrow_forwardConsider the reaction represented by the equation: N2(g) + 3H½(g) =2NH3(g). What happens to the equilibrium position when an inert gas is added to this system (as represented above) at equilibrium? Select one: O a. Nothing happens to the equilibrium position no matter what the container is like. O b. The equilibrium position shifts no matter what the container is like. O c. If the container is rigid, the equilibrium position shifts. If the container is fitted with a moveable piston, nothing happens to the equilibrium position, O d. If the container is rigid, nothing happens to the equilibrium position. If the container is fitted with a moveable piston, the equilibrium position shifts. O e. The value of the equilibrium constant must be known to answer this question. search WI F5 F6 EZ F9 F10 F11 F12 PriScr %23 %24 & 6 7 E R G Harrow_forward
- Hydrogen chloride and oxygen react to form water and chlorine, like this: 4 HC1(g) + O₂(g) → 2H₂O(g) + 2Cl₂(g) Use this chemical equation to answer the questions in the table below. Suppose 240. mmol of HCl and 60.0 mmol of O₂ are added to an empty flask. How much H₂O will be in the flask at equilibrium? Suppose 240. mmol of H₂O and 240. mmol of Cl₂ are added to an empty flask. How much H₂O will be in the flask at equilibrium? None. Some, but less than 120. mmol. 120. mmol. 5 6 6 0 0 0 More than 120. mmol. None. Some, but less than 240. mmol. 240. mmol. More than 240. mmol. Sarrow_forwardWhich of the following changes will move the equilibrium to the right (products) for the following endothermic reaction? NHẠCO2NH2 (S) 2 NH3 (g) + CO2 (g) O Removing CO2 (g) O Adding NH4CO2NH2 (s) Decreasing the pressure Decreasing the volume Adding NH3 (g) Increasing the temperaturearrow_forwardWhich side of the equilibrium shown in the following figure is favored? Select the favored set of compounds from the choices given. H NH, H - N*-H H,C OH H,C H NH3 H.C H H-N-H H,C O At equilibrium, equal amounts of reactants and products will exist.arrow_forward
- Given the equilibrium reaction A + B C+ D+heat What change in the reaction system will change the value of the equilibrium constant? O an increase in temperature an increase in the concentration of B and D O an increase in the concentration of A and C O an increase in pressurearrow_forwardNitrogen dioxide and carbon monoxide react to form nitrogen monoxide and carbon dioxide, like this: NO₂(g) + CO (g) →→ NO(g) + CO₂(g) - Use this chemical equation to answer the questions in the table below. Suppose 65.0 mmol of NO2 and 65.0 mmol of CO are added to an empty flask. How much NO₂ will be in the flask at equilibrium? 2 Suppose 215. mmol of NO and 215. mmol of CO₂ are added to an empty flask. How much NO₂ will be in the flask at equilibrium? O None. O Some, but less than 65.0 mmol. 65.0 mmol. More than 65.0 mmol. O None. O Some, but less than 215. mmol. ○ 215. mmol. More than 215. mmol.arrow_forwardThe following reaction has an equilibrium constant of 1.94 x 10-10 at a certain temperature. COCl2(g)CO(g) + Cl2(g) If you have 0.93 moles of COCl2(g) in a 1.0L container, how many moles of CO will be present when the system reaches equilibrium?arrow_forward
- Match each chemical equation below with the correct equilibrium constant expression. [N] [02]? [NO,1? Equilibrium Constant Expression Chemical Equation [N2][02]? [NO2]? 2NO(g) = N2(g) + O2(g) K = [NO]? [N2][02] [NO,]? [N>][02]? N2(g) + O2(g) = N,O2(g) K = [N]°[0]? [N202] [N202] [N2][O2] 2NO2(g) = N2(g) + 202(g) K = {N2][O2] [NO]? [NO]? [N]?[0]? N2(g) + 202(g) = 2NO2(g) K = [N202] [N2][02] [N202] [N]?[0]? Rain to stoparrow_forwardConsider the equilibrium system C(s) + CO2 (g) = 2C0(g) If C is removed, the equilibrium will _____, and if CO is added, the equilibrium will ____arrow_forwardHydrogen iodide gas was placed in an empty flask at 145°C. The following equilibrium was established. 2 HI(g) 2 H2(g) + I2(g) At 145°C, the equilibrium constant for this reaction is 0.167. If the initial concentration of hydrogen iodide was 0.203 mol/L, what is the equilibrium molar concentration of hydrogen iodide gas? Answer to three decimal places.arrow_forward
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