D Question 4 1 pts The reaction shown is at equilibrium. If a student adds more...
1 pts D Question 4 The reaction shown is at equilibrium. If a student adds more X to the system, what happens Immediately (at that Instant) to Q and K? X+ YZ Both decrease Both increase OQ gets larger and K gets smaller. Ok gets larger and gets smaller. Kremains constant and increases Okremains constant and Q decreases.
Question 5 1 pts You have a saturated solution of Ca(OH), in a flask, meaning there is some solid Ca(OH), sitting at the bottom of the aqueous solution. Which of the following will increase the Ca2+ concentration in solution? Adding water to the solution. Adding HCl(aq) to the solution. Adding KOH(aq) to the solution Adding more Ca(OH)2(s) to the flask,
at must be the equilibrium concentration of Question 1 (5 pts). A. If the equilibrium concentration of Ce is 0.00010 M, what must be the oqu Cod in the solution? K (Ce (CO)) -59% 10%. (Answer: 3.9 x 10M] B. If the concentration of Ca?" of the solution in 1A is in will some CaCO, begin to precipitate? K (Caco) -1.3 x 10". (Hint: What is the the association of Caland Co, at these concentrations and how does that compare...
Question 53 9 pts The equilibrium constant (K) for the reaction below is best represented by: HNO3 (aq) + CaCo3 (s) 4 CO2 (g) + H20 (0) + Ca(NO3)2 (aq) O [H0] [Ca(NO3)2)/(HNO3] [Cacoal A K = [CO] (H2O) (Ca(NO3)2] / [HNO] [Caco] O K = (CO2) [Ca(NO3)2)/(HNO3] O K = [CO2] [H2O] (Ca(NO3)2)/(HNO3] OK - [CO] (Ca(NO3)2] / [HNO.) (Cocoa)
Write the equilibrium-constant expression for the reaction shown in terms of [NO], [0, 1, and [NO, J. 2 NO(g) + O2(g) = 2 NO, (g) Ke, which is sometimes symbolized as Kor Key, denotes that the equilibrium constant is expressed using molar concentrations. For this question, Kmeans the same thing as K and Ke. K. = [C] [D]2 [4][B] At 25 °C, only 0.0670 mol of the generic salt AB, is soluble in 1.00 L of water. What is the...
Question 13 1 pts A chemical system with a large equilibrium constant is usually associated with negative values of A Gº. Which description of this system is correct? The forward reaction is spontaneous and mostly products are present. The forward reaction is spontaneous and mostly reactants are present. The reverse reaction is spontaneous and mostly reactants are present The reverse reaction is spontaneous and mostly products are present. At equilibrium, equal amounts of reactants and products are present. At equilibrium...
B3438 QUESTION 24 What is the equilibrium constant (K) at 350 K for the following reaction? (R= 8.314 J/K.mol, F = 96,500 C-moll) Sn2+ (aq) + Fe(s) Sn(s) + Fe2+(aq) E cell = 0.35 V O 7.1 x 10-11 1.2 x 1010 1.2 x 105 8.6 x 10- 2.3 1023 QUESTION 30 A chemist adds substance A and B to a reaction flask and allows equilibrium to establish A+B=CKc= 1.5 x 10-25 Which of the following describe the contents of...
4. If more Br ions are added to a saturated PbBr solution, will the reaction shift? If so, which direction? Explain why or why not (4) PbBry(s) Pb2+ (aq) + 2 Brjag) 5. Write the expression for the solubility product, Kp. of PbBr2 (2) 3. Use the provided experimental data to calculate the equilibrium constant, K, for the reaction given below. Note the stoichiometry is not all 1 to 1. (7) Include the units for K Collaq) + 2SCN (aq)...
Question 5 6 pts A student has three test tubes containing a metal (M) nitrate solution M(NO3)2 (aq) (where "M" represents a generic transition metal). The student adds aqueous ammonia (NH3) to one test tube, aqueous hydrochloric acid (HCI) to the second tube, and nothing more to the third tube, but forgets to label the tubes. After this, one test tube contains a red solution, one an orange solution, and one a yellow solution. Note: This metal, M, would follow...
1. (2 pts) Write the formula for the conjugate acid of the following bases: a. NH3 b.CO - 2. (2 pts) Which substance could you add to each solution to make it a buffer solution? b. 0.050 M HF C. 0.050 M CH3COOH 3. (2 pts) Calculate the concentration of H30* and OH-in a 1.5 M HCl solution. + Page 1 of 2 129 words CTX English (United States) Focus 140% equilibrium constant (K) of the neutralization reaction using the...