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52. In ionic solids such as NaCl (salt), the potential energy of a pair CH of ions takes the form U of the ions. For NaCl, a and b have the SI values 4.04×10-28 and 5.52X10-98, respectively, and n = separation in NaCI. = blr" – alr, where r is the separation 8.22. Find the equilibrium

2 Zn*2 (aq) +Fe*2 (ag) + 6 CN (ag) = Zn2Fe(CN)6 (5) [znz Fe (CN),] A certain equilibrium reaction has K = 2.8 x 10-13 at 25 °C. What is the change in Gibbs Free Energy (kJ/mole) under these conditions?

Complete the balanced chemical reaction for the following weak base with a strong acid. In this case, write the resulting acid and base as its own species in the reaction. CH:NH2(aq) + HCIO:(aq)- |3- 2- 4- 2+ |3+ 4+ 1 2 3 4 5 6 7 8 O2 O3 D4 Os |1 6. 10 (s) (1) (g) (aq) + H2O H3O+ H CI OH- C Reset x H2O Delete

Write the equilibrium constant expression, K, for the following reaction taking place in dilute aqueous solution. HCN (aq) + OH" (aq) CN" (aq) + H,0 (1) K =

Write an expression for the equilibrium constant  for this reaction: N2O4(g)+ O3(g)=N2O5(s)+O2(g)

2:25 1 Question 17 of 25 Submit Consider the equilibrium system described by the chemical reaction below. A 1.00 L reaction vessel was filled 0.0560 mol O, and 0.200 mol N20 and allowed to react at 298 K. At equilibrium, there were 0.0200 mol of NO2 present. Determine the concentrations of all species and then calculate the value of Kc for this reaction. 2 N20(g) + 3 O2(g) =4 NO2(g) 1 2 Based on the given values, fill in the ICE table to determine concentrations of all reactants and products. 2 N20(g) + 3 O2(g) = 4 NO2(g) Initial (M) Change (M) Equilibrium (M) 5 RESET 0.0560 0.200 -1.00 -0.0560 0.0200 -0.0200 0.0100 -0.0100 -0.0050 0.0050 0.0150 -0.0150 0.210 0.190 0.0410 0.0710 0.0360 0.180

Given: 2N2(g)+ O2(g) = 2N20(g); Ke(1) = 5.8 x 10-36 and N2(g) + O2(g) = 2NO(g); K(2) = 4.1 x 10-31 What is the equilibrium constant for the reaction? 2N20(g) + O2(g) = 4NO(g)

Jj.95.

Consider the reaction: HCI(aq) + NH, (ag) – NH,Cl(aq) Where 20.00 mL of 0.100 M NH, (aq) is added to 10.00 mL of 0.200 M HCl(aq). Order the solution components (excluding water) from highest to lowest concentration. O [OH¯] > [NH3] > [Na*] > [Cl¯] > [H,O*] O (CI ] = [NH†] > [NH,] = [H,O*]> [OH¯] O [H,0*)> [Cl¯] > [NH,] > [NH†]> [OH) O [NH]= [OH"] > [H,O*] = [CI¯] > [NH,] O [H,0*] = [CI¯] > [NH,] > [NH ] = [OH] O [NH,CI] = [NH,] = [HCl] O [CI] > [NH†]> [H,O+] > [NH,] > [OH ] O INH,CI] > [NH3] > [HCl] O None of these

Use your knowledge about solubility rules and reactions to write (1) a balanced chemical  equation (molecular equation), (2) a total ionic equation, and (3) a net ionic equation for the  reactions below. Include the appropriate phase for each species. Do your experimental  observations match your predictions? (k) NaOH(aq) + SrCl2(aq) →

Copper(I) ions in aqueous solution react with NH3(aq) according toCu+(aq) + 2NH3(aq) → Cu(NH3)2+(aq) Kf = 6.3 × 1010Calculate the solubility (in g·L-1) of CuBr(s) (Ksp = 6.3 × 10-9) in 0.62 M NH3(aq).62.3solubility of CuBr(s):

Suppose the reaction system UO2 (s) + 4 HF (g) ↔ UF4 (g) + 2H2O (g) has already reached equilibrium.  Predict the effect that each of the following changes will have on the equilibrium position.  Tell whether the equilibrium will shift to the right, shift to the left, or will not be affected. Additional UO2 (s) is added to the system. The reaction is performed in a glass reaction vessel; HF (g) attacks and reacts with glass. Water vapor (H2O (g)) is removed.

A solution of 0.1 M CH3CH₂OH (ethanol) in water has a pH of 7. Draw and upload a Lewis structure for CH3CH₂OH (aq). Use one ethanol molecule and 4 water molecules. Explain why the pH is 7, using your drawing for reference. Use the editor to format your answer

Copper(I) ions in aqueous solution react with NH3 (aq) according to Cu+ (aq) + 2 NH3 (aq) · → Cu(NH3)2(aq) K₁ = 6.3 × 1010 Calculate the solubility (in g·L-¹) of CuBr(s) (Ksp = : 6.3 × 109) in 0.74 M NH3(aq). solubility of CuBr(s): g/L