Practice Problem BUILD
Consider a weak acid, HA, that ionizes according to the equation:
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Chemistry
- Which of the following statements is (are) true? (Select all that apply.) If equilibrium constants for the chemical reaction N2(g) + O2(g) : = 2 NO(g) are K, = 1.1 x 103 and 3.6 x 103 at 2,200 K and 2,500 K, respectively, then the reaction is exothermic. If Q < K then the reactant concentrations will be decrease as the reaction proceeds to equilibrium. Concentration of the products equals the concentrations of the reactants. If the reaction, C(s) + 2H2(g) = CH4(g) is at equilibrium, adding solid carbon will cause the reaction to shift in the forward direction. None of these statements are true. O At equilibrium, the rate of the forward reaction is equal to the rate of the reverse reaction.arrow_forwardK=4.9x10-3 for the reaction CO2(g)+H2(g)⇄ CO(g)+H2O(g). If [CO2]=0.00025 M, [H2]=0.0010 M, & [CO]=0.000015 M, what is the concentration at equilibrium of H2O? Answer 8.2x10-5M I got 1.84x10^-14? Can someone explain this to me please.arrow_forward9. The equilibrium constant for the reaction 2 BrCl (g) → Br2 (g) + Cl2 (g) at 25°C is Keq = 0.0172. What is the equilibrium constant for the reaction Br2 (g) + Cl2 (g) →2 BrCl (g)? (а) -0.0172 (b) 0.131 (c) 7.62 (d) 58.1 (e) none of thesearrow_forward
- Please correct answer and don't use hand raitingarrow_forwardGiven a K value of 4.6 X 10-12, would you expect a nearly complete reaction at equilibrium? yes no insufficient informationarrow_forward(Incorrect) For the reaction 2A(g) + B(s) C() + 2D(g) at 700 °C, Kc = 0.00577. Calculate the number of moles of D present at equilibrium if a mixture of 6.03 moles of C and 6.03 moles of D is heated to 700 °C in a 7.61-L container. 0.0074 mol (Your answer) 0.430 mol (Correct answer) 5.60 mol 0.056 molarrow_forward
- The equilibrium constant for the equilibrium, 3A+ 2B ↔ 2D + E, is 4.22 x 10-3 . What is the equilibrium constant for the equilibrium: D + (1/2)E ↔ (3/2)A + B? (a)237 (b)2.11×10-3 (c)15.4 (d)-2.11×10-3arrow_forwardTUTOR Calculate K from Equilibrium Concentrations Some SO, is placed in a sealed flask and heated to 1350 K. When equilibrium is reached, the flask is found to contain SO3 (6.00×10 M), SO, (3.47x102 M), and O2 (1.59×10-² M). What is the value of the equilibrium constant for this reaction at 1350 K? 2S03(g) 2SO2(g) + O2(g) K=arrow_forwardPractice chemistry questionarrow_forward
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