Tiny samples of aqueous solutions are sketched below, as if under a microscope so powerful that individual molecules could be seen. (The water molecules are not shown.) The two substances in each sample can interconvert. That is, each kind of molecule can turn into the other. The equilibrium constant K for each interconversion equilibrium is shown below the sketch. Decide whether each solution is at equilibrium. do K=1 K= At equilibrium? At equilibrium? O yes O no O yes O no K = 3 K=4 At equilibrium? At equilibrium? O yes O no O yes O no Explanation Check Accessibilty 2021 McGraw-HE Education Al Rights Reserved Terms of Use I Pivacy

At a certain temperature, the equilibrium constant K for the following reaction is 6.8 x 10°: Cl,(e) + CHCI, (g). - HC1(g) + CC1,(g) Use this information to complete the following table. Suppose a 43. L reaction vessel is filled with 0.70 mol of HCl and 0.70 mol of CCI4. What can you say about the composition of the O There will be very little Cl2 and CHCI3. mixture in the vessel at equilibrium? O There will be very little HCl and CCl4. O Neither of the above is true. What is the equilibrium constant for the following reaction? Be sure your answer has the correct number of significant digits. K =|| HCl(g)+CCl,(9) Cl,(0)+CHC13(0) What is the equilibrium constant for the following reaction? Be sure your answer has the correct number of significant digits. K = | 3 Cl,(0)+3CHC13(g) 3 HCl(g)+3CC14(9)

Hydrogen chloride decomposes to form hydrogen and chlorine, like this: 2 HCl(g) H,(g) + Cl,(g) Also, a chemist finds that at a certain temperature the equilibrium mixture of hydrogen chloride, hydrogen, and chlorine has the following composition: compound concentration at equilibrium HC1 0.73 М H2 1.2M Cl2 0.90M Calculate the value of the equilibrium constant K, for this reaction. Round your answer to 2 significant digits. K = [] %3D 10 Explanation Check O 2022 McGraw Hill LLC. AlI Rights Reserved. Terms of Use Privacy Center Access DELL Esc F1 F2 F3 F4 F5 U F6 F7 F8 F9 F10 F11 F12 PrtScr Insert Delete "R # $ & Num Lock 1 2 3 4 Backspace 7 Tab R Y * 00

O KINETICS AND EQUILIBRIUM Calculating an equilibrium constant from a partial equilibrium... 0/5 Ammonia will decompose into nitrogen and hydrogen at high temperature. An industrial chemist studying this reaction fills a 75.0 L tank with 21. mol of ammonia gas, and when the mixture has come to equilibrium measures the amount of hydrogen gas to be 6.3 mol. Calculate the concentration equilibrium constant for the decomposition of ammonia at the final temperature of the mixture. Round your answer to 2 significant digits. K = 0 II