5. (2 points) Write the a) mass balance expression(s) and b) charge balance expression for barium sulfate, BaSO4, i...
1. Finish the mass-balance expressions for a 0.0100 M solution of HCl that is in equilibrium with an excess of solid BaSO4? The three pertinent equilibria in the solution are: BaSO4(s) = Ba2+ + 502- S02- + H20+ = HSOZ + H2O 2H20 = H30+ + OH- [Ba2+] =
11 The reaction, BaCl(aq) + H2SO4(aq) → BaSO4(s) + 2 HCl(aq), is an example of a a. precipitation reaction b. decomposition reaction c. single replacement reaction d. combustion reaction e. combination reaction 12. In the reaction, K2SO4(aq) + Ba(NO3)2(aq) + BaSO4(s) + 2 KNO3(aq), which ions are the spectator ions? a. Ba?- and SO42 b. Ba2+ and K+ c. Bat and NO3 d. K and SO2- e. K and NO3 13 Which is the net ionic equation for the reaction...
When ammonium sulfate dissolves, both the anion and cation have acid-base reactions: (NH4)2SO4(s) ⇄ 2NH4+ + SO42- Ksp = 276 NH4+ ⇄ NH3(aq) + H+ Ka = 5.7x10-10 SO42- + H2O ⇄ HSO4- + OH- Kb = 9.8x10-13 a. Write charge balance and mass balances b. Compute the concentration of NH3(aq) if pH is 9.25
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12. In the reaction, K2SO4(99) + Ba(NO3)2(aq) + BaSO4(s) + 2 KNO3(aq), which ions are the spectator ions? a. Ba2+ and SO42- b. Ba2+ and K+ c. Ba2+ and NO3 d. K+ and SO42- e. K+ and NO3 13 Which is the net ionic equation for the reaction which takes place when HCl(ag) is added to KOH(aq)? a. HCl(aq) + KOH(99) KCl(aq) + H2O(1) b. H(aq) + OH(aq) + H2O(1) c. HCl(aq) + OH(aq) + Cl(aq) +...
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2. (4) Given: PbSO4(e)Pb2 (aq) + SO42 (aq) Calculate the equilibrium constant, if AGt for PbSO4(s) is-811 Kj/mole; for Pb2+ (aq) is 24.3 Kj/mole and for SO42 (ag) is -742 Kj/mole. Calculate the solubility of PbSO4, if the pH of the solution is 4.32 and the [NaHSO4] is 0.10 M. Ka for HSO4 1.02 x 10-2 1. (6) From this week's experiment, what would you expect the signs on ΔΗΡ and So for the observed reaction, Na2B O(OH)8 H2o...
Write the charge and mass balance equations based on
the systematic treatment of equilibria approach.
Can someone please check if my equations are
correct?
Fe(OH)3 (s) = Fe3+ (aq) + 3OH (aq) Fe3+ (aq) + OH(aq) = FeOH²+(aq) FeOH2+ (aq) + OH+ (aq) = Fe(OH)2+ (aq) H2O 1) = H+ (aq) + OH+ (aq) Charge Balance Equation 2[Fe3+] + 2[Fe042+] + [Fe(OH)2 +] + [H*] = 6[OH 1 Mass Balance Equation Fe(OH)3 = [Fe(OH)3] + [Fe(OH)2+] + [Fe0H2+]
Based on #6 what is rhe answer to #7
Ba(OH)2 Bi 6. Barium hydroxide powder is stirred in water. Then the excess barn is stirred in water. Then the excess barium hydroxide is removed by centrifugation. The Ksp of barium hydroxide is 5X10 A. What is the equilibrium barium ion concentration in the solution? Kap - [Ba *2] [OH-]2 Rat2 + 20H- 5x10-3 = [Bat2] [OH-]2 5x10-3= (s) (25) [ Bg+2 = 0. 108 m B. What is the equilibrium...
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1. Identify each of the following reactions as a precipitation reaction, an acid-base reaction or as a redox reaction Pb(NO), (aq) + 2 HCl(aq) - PbCl(s) + 2 HNO(aq) b. 2 H2 + Oxel - 2 H2O CHNO, (aq) + KOH(aq) - KNO, (aq) + H2O (1) d. Zn + 2HCl - ZnCl + H e. Ba"(aq) + 2 Br(aq) + 2 Na' (aq) +SO. (aq) BaSO. (s) + 2 Na'(aq) + 2 Br"...
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1. Identify each of the following reactions as a precipitation reaction, an acid-base reaction, or as a redox reaction + a. Pb(NO3)2 (aq) + 2 HCl(aq) PbCl (s) + 2 HNO, (aq) b. 2 Hxe + O2 + 2 H2O c. HNO, (aq) + KOH(aq) KNO, (aq) + H20 (1) d. Zna + 2HCl(a) - ZnClaraq) + Halle e. Ba?'(aq) + 2 Br(aq) + 2 Na(aq) + SO/"(aq) BaSO. (s) + 2 Na'(aq) + 2 Br" (aq)...
4. The charge most commonly found on Ca is (insert number). Answer 1: 2 (INCORRECT) 6. One reagent bottle on the shelf in a laboratory is labeled 12M H2SO4 and another is labeled 12M HCl, which statement is true? a. There are more grams of H2SO4 in 100 mL of 12 M H2SO4 compared to the grams of HCl in 100 mL of 12 M HCl. b. (WRONG) There are fewer grams of H2SO4 in 100 mL of 12 M...