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- 2. Calculate AH° and ASº for the following reaction, and AG° at 959 K. (-- otal) 3 Fes 5 O2 1 Fe3О4 3 SO2 + A¢H°(kJ/mol) = -100 -1118 -297 S°(kJ/mol·K) = 0.0603 0.205 0.146 0.248 ΔΗ- AS° = AG° =7) what is the pH at the equivatent point in the titration of 5 mmol Potassium acid phthalate dissolved in 100 mel of water and titrat ed with 0.tM NaoH 9 k,= 4 tr56 %3D Ans.: 8.16Q7) what is the pH at the equivatent point in the titration of 5 mmol Potassium acid ph thalate dissolved in 100 mel of water and titrat ed with 0.1M NaoH 9 K, = 4 +r56 %3D Ans. : 8.46
- Express the equilibrium constant for the following reaction: 2Na(s) + 2H,0() = 2N2OH(ag) + H,(g) O Ke- [H2INOH]-2 O Ke O Ke- O K= [H2[N»OH2The coloriesS supe atanliquid was so 11. How does the addition of H3O* affect the following reaction equilibrium? 2CrO42- (aq, yellow) + 2H3O* (aq) -> Cr2O7²- (aq, orange) + 3H2O (1) a. The reaction shifts to the right and the concentration of CrO42- increases. b. The reaction shifts to the right causing the concentration of Cr2072 to decreases and the solution to turns yellow. c. The reaction shifts to the right resulting in a reduction in the concentration of H3O* and an increase in the concentration of Cr2O,2. d. The reaction shifts to the left and the concentration of CrO42 increases. e. The reaction shifts to the left and the concentration of CrO42 decreases.A 4.912-g sample of a petroleum product was burnedin a tube furnace, and the SO2produced was collectedin 3% H2O2.Reaction:SO2(g)+H2O2→H2SO4A 25.00-mL portion of 0.00873 M NaOH was introducedinto the solution of H2SO4, following whichthe excess base was back-titrated with 15.17 mL of0.01102 M HCl. Calculate the sulfur concentrationin the sample in parts per million.
- What is Kc for the reaction: N22CO3 (s) + CO2 (g) + H2O (g) =2 NaHCO3 (s)? [NAHCO3]^2 / [Na2CO3] x [CO2] x [H2O] O [co2] x [H20] O 1/ [CO2] x [H2O] 2 x [NAHCO3] / [Na2CO3] x [CO2] x [H20]Which species dissociates most completely in water solution? C) H2CO; A) NH,+ B) HNO3 D) HSO,1- 5.5) Which of the following would you use to convert CI to Cl2? Clatg) + 2 e > 2 CH(ag) E° = 1.36 V a. Bra() b. H:O:(ag) c. Cu'(ag) d. Au(s) Br2() + 2 e > 2 Br(ag) E°- 1.09 V H:O:(aq) + 2 H+ +2 e > 2 H;O() E° = 1.78 V Cu'(aq) + 2 e > Cu(s) E° - 0.52 V Au"(ag) + 3 e → Au(s) E°- 1.50 V
- One method of de ter minin) the concentration of hydrosen peroxide CH 202) ina slution s thraush ttration FEtea with The net ibnic equatich for this i odine jon. reaction 1 H 202 +21- t 2H t-712+2H20 A 50.00mL sample ofa hy oogen peroxide solution is found to react completely with 37. 12mL ok a 0. 1500 M Fl solotion.whetis the concentration? C) 0- 22 2フ d.J 0.404)M b)SS68 x10- 2M )カ-i114M C) 0.1010MWhich of these expressions correctly expresses the solubilityproductconstant for Ag3PO4 in water?(a) [Ag][PO4] (b) [Ag+][PO43 - ] (c) [Ag+]3[PO43 - ](d) [Ag+[[PO43 - ]3 (e) [Ag+]3[PO43 - ]3+ H (a) CuCN (b) CaCO3 (c) Ag₂CO3 (d) PbBr₂ (e) Y(OH)3 Periodic Table B W Chapter... Supporting Materials Additional Materiala [Ca²+] = 5.2 x 104 M, [CO32- ] = 6.5x 10-6 M * G Please use the values in the resources listed below instead of the textbook values. The following concentrations are found in mixtures of ions in equilibrium with slightly soluble solids. From the concentrations given, calculate Ksp for each of the slightly soluble solids indicated. [Cu] = 1.9x10-10 M, [CN] = 1.9x10-¹0 M [Ag+] = 1.8x10-5 M, [CO32] = 2.7x10-² M [Pb²+] = 1.2x 10-2 M, [Br] = 2.4x10-2 M [Y³+] = 3.5x 10-16 M, [OH-] = 6.6x 10-³ M Constants and Factors №. webassign.net ● F 893 Supplemental Data L C C a Ⓒ + D r