Write reaction quotients for the following reactions:
(a)
(b)
(c)
(d)
(e)
(f)
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Chapter 15 Solutions
Chemistry: Atoms First
- Write an equation for an equilibrium system that would lead to the following expressions (ac) for K. (a) K=(Pco)2 (PH2)5(PC2H6)(PH2O)2 (b) K=(PNH3)4 (PO2)5(PNO)4 (PH2O)6 (c) K=[ ClO3 ]2 [ Mn2+ ]2(Pcl2)[ MNO4 ]2 [ H+ ]4 ; liquid water is a productarrow_forwardCalculate the value of the equilibrium constant for the reaction N2(g)+2O2(g)2NO2(g) if the concentrations of the species at equilibrium are [N2] = 0.0013, [O2] = 0.0024, and [NO2] = 0.00065.arrow_forwardShow that the complete chemical equation, the total ionic equation, and the net ionic equation for the reaction represented by the equation KI(aq)+I2(aq)KI3(aq) give the same expression for the reaction quotient. KI3 is composed of the ions K+ and I3-.arrow_forward
- Write the expression for the equilibrium constant and calculate the partial pressure of CO2(g), given that Kp is 0.25 (at 427 C) for NaHCO3(s) NaOH(s) + CO2(g)arrow_forwardDescribe a nonchemical system that is not in equilibrium, and explain why equilibrium has not been achieved.arrow_forwardWhat is the equilibrium constant expression for the reaction NO2(g) ⇄ N2O4(g)?arrow_forward
- Identify the equilibrium constant expression for the following reaction: CH4(g) + 2H2S(g) ⇌ CS2(g) + 4H2(g)arrow_forwardUsing the law of mass action, write the equilibrium expression for each of the following reactions. (a) 8 H2(g) + Sg(s) 2 8 H,S(g) (b) C(s) + H,O(€) + Cl2(g) = COCl,(g) + H,(g) (c) CaCO3(s) 2 CaO(s) + CO2(g) (d) 3 C,H2(g) = CH(t) Actiarrow_forwardWrite the equilibrium-constant expression, Kc, for the following reaction. 3O2(g) ↔ 2O3(g)arrow_forward
- 3. Write the reaction quotient, Qc, for each of the following reactions: (a) CH4(g) + CO2(g) ↔ CO(g) + H2(g) (b) H2S(g) + SO2(g) ↔ S(s) + H2O(g) (c) HCN(aq) +NaOH(aq) ↔ NaCN(aq) + H2O(l)arrow_forwardWrite the equilibrium constant expression for each of the following reactions and classify the reactions as homogeneous or heterogeneous. (a) H2S (g) + O2 (g) ↔ H2O (g) + SO2 (g) (b) CO2 (g) + H2 (g) ↔ CO (g) + H2O (l) (c) HCl (g) + O2 (g) + C2H4 (g) ↔ C2H4Cl2 (g) + H2O (g)arrow_forwardWrite the equilibrium-constant expression for the following reaction: 2NO (g) + 2H2 (g) ↔↔ N2 (g) + 2H2O (g)arrow_forward
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