A 3.00-liter flask initially contains 3.00 mol of gas A and 1.50 mol of gas B. Gas A decomposes according to the following reaction: 3A = 2B + C The equilibrium concentration of gas C is 0.244 mol/L. Determine the equilibrium concentration of gas A. Ⓒa. 0.432 M b. 0.856 M OC. 0.144 M O d. 0.568 M e. 0.268 M

0.31 M of F₂ gas and excess solid of E were placed in a container. When the following reaction has reached equilibrium, the concentration of EF gas was 0.024 M. What is the equilibrium concentration of F₂ gas? Please report 3 decimal places, without units. 2E(s) + F₂(g) →→→ 2EF(g)

A chemist is studying the following equilibirum, which has the given equilibrium constant at a certain temperature: 2 NO(g) + Cl₂(g) 2 NOC1 (g) K₂ = 1. x 10 -6 He fills a reaction vessel at this temperature with 13. atm of nitrogen monoxide gas and 17. atm of chlorine gas. Use this data to answer the questions in the table below. Can you predict the equilibrium pressure of NOCI, using only the tools available to you within ALEKS? If you said yes, then enter the equilibrium pressure of NOCI at right. Round your answer to 1 significant digit. O yes O no atm 0 X S BEEN 000 Ar

Consider the following reaction at equilibrium.  Which of the following changes will shift the equilibrium to the left? CH4(g) + Cl2(g) ⇌  CCl4(l) + HCl(g)     ΔH°= –398 kJ I. Increasing the temperature II. Decreasing the temperature III. Increasing the volume IV. Decreasing the volume V. Removing some Cl2 VI. Adding some Cl2 VII. Removing some HCl VIII. Adding some HCl A. I, IV, VI, VII B. II, III, VI, VIII C. I, VI, VIII D. I, III, V, VIII E. II, IV, VI, VII

2. 1.00 mol of oxygen and 1.00 mol of sulfur dioxide are placed into a 1.0-L flask. Sulfur trioxide gas is formed. At 1000 K, when equilibrium has been reached, 0.93 mgl pf sulfur trioxide have been formed. What is the Kec?.

Consider the reaction A + B C+D, which has an equilibrium constant, K, equal to 3.4 x 102. If one begins a reaction by placing 0.600 moles of A in a 1.0 L container as well as 0.150 moles of 1. B, what will be the equilibrium concentrations of A, B, C, and D? Write your answers in the spaces provided below. a. [А] b. [B]= [C]= С. d. [D]= Once the reaction in problem 1 reaches equilibrium, some additional B is injected into the flask 2. from an outside source. LeChatelier's principle says the reaction will (circle one): be unchanged shift to the right shift to the left Pyridine is a weak base with a Kb 1.7 x 109. If 0.300 moles of pyridine is added to 1.00 L of 3. water, what will be the equilibrium concentrations of the species below: a. [Pyridine] = b. [Pyridine-H] (the pyridinium ion) [ОН-] 3 С. What is the pH of the solution in problem 4 (above)? .

Consider the following equilibrium:  CO(g) + NO2(g) ↔   CO2(g) + NO(g)  At a specific temperature the equilibrium concentrations where determined to be: [CO] = 0.0033M [NO2] = 0.021M  [CO2] = 0.59M [NO] = 0.59M a-      Calculate the value of the equilibrium constant b-      Describe the position of the equilibrium

An evacuated reaction vessel is filled with 0.800 atm of N₂ and 1.681 atm of Br2. When equilibrium is established according to the reaction below, there are 1.425 atm of Br2 remaining in the vessel. What is the equilibrium partial pressure of NBr3? 2 NBr3 (g) = N₂ (g) + 3 Br2 (g)

Phosphorus pentachloride decomposes at higher temperatures. PC15 (8) PCl3(g) + Cl₂(g) An equilibrium mixture at some temperature consists of 5.81 g PCI, 208.23 g/mol 4.86 g PC3, 137.33 g/mol 3.59 g Cl₂, 70.91 g/mol in a 1.00-L flask. If you add 1.31 g of Cl₂, how will the equilibrium be affected and what will the concentration of PCI, be when equilibrium is reestablished? O shift left O shift right Ono shift will occur [PCI5] = mol/L