Consider the following reactions: SO32- (aq) + H2O(l) = HSO3_(aq) + OH-(aq) Kb1 = 8.3 x...
Consider the following reactions: Koi = 8.3 x 10-8 SO32-(aq) + H2O(1) = HSO:_(aq) + OH(aq) HSO3- (aq) + H2O(1) = HSO3(aq) + OH-(aq) K12 = 7.6 x 10-13 What is the pH of 1.0 x 10-3 M Na2SO3? Select one: O a. 7.0 b. 9.0 C. 5.0 d. 13.0 o e. 10.5
Part A. Which of the following is not a redox reaction? H2O(l) + NH3(g) NH4+(aq) + OH–(aq) 2H2(g) + O2(g) 2H2O(l) Zn(s) + H2SO4(aq) ZnSO4(aq) + H2(g) FeSO4(aq) + K2Cr2O7(aq) + 7H2SO4(aq) Cr2(SO4)3(aq) + 3Fe2(SO4)3(aq) + K2SO4(aq) + 7H2O(l) Cl2(g) + 2KBr(aq) Br2(l) + 2KCl(aq) Part B. A 43.46 mL sample of Na2SO3 was titrated with 68.99 mL of 0.128 M K2Cr2O7 solution in the presence of H2SO4. Calculate the molarity of the Na2SO3 solution. Enter to 3 decimal...
Consider the following reaction. What is/are the spectator ion(s)? H2SO3(aq) + KOH(aq)-K2SO3(aq) + H2O(1) O K*(aq), SO32- (aq) O H+(aq). SO,2- (aq) K*(aq) only OH(aq), OH- (aq) SO42- (aq) only O H*aq). K*(aq) « Previous
Important Info: Ka reaction: HC2H3O2(aq) + H2O(l) <-->C2H3O2 (aq) +H3O+(aq) HC2H3O(aq) +OH-(aq) -> C2H3O2-(aq) + H2O (l) A 1.0 L buffer solution is 0.280 M in HC2H302 (acetic acid) and 0.320 M in NaC2H302 (sodium acetate). Calculate the pH of the budder and he Ka for HC2H3O2 IS 1.8 X 10-5 Calculate the pH of te solution above after the addition of 0.0400 moles of solid NaOH. Assume no volume change upon the addition of base.
Which of the following chemical reactions represents the ionization of water? 0 H2O(l) H2O+(aq) + e- O H+(aq) + OH-(aq)= H2O(l) O H2O(l)-H2O-(aq) 2H20 2H2(g)+ 02(8) O H2O(l)-H'(aq) + OH-(aq)
Part A - Combining Equilibrium Expressions Given the equilibrium constants for the following two reactions in aqueous solution at 25°C HNO2 (aq) = H+(aq) + NO2 (aq) Kc = 4.5 x 10-4 H2SO3(aq) = 2H+(aq) + SO32- (aq) Kc = 1.1 x 10-9 what is the value of K, for the reaction 2HNO2 (aq) + SO32- (aq) = H2SO3(aq) + 2NO2 (aq) O 4.9 10-13 O 5.4 x 10-3 O 1.8 x 102 O O 4.1 x 105 8.2 x...
Phenol (C,H,OH), commonly called carbolic acid, is a weak organic acid. C, H, OH(aq) + H2O(l) = C, H50- (aq) + H2O + (aq) K. -1.3 x 10-10 If you dissolve 0.157 g of the acid in enough water to make 253 mL of solution, what is the equilibrium hydronium ion concentration [Bot]- What is the pH of the solution? pH-
C6H4(OH)2(aq) + H2O2(aq) ----> C6H4O2(aq) + 2 H2O(l) Given the entropies of the reactions below, calculate the entropy of the chemical explosion at 37 C. 2 H2O2 (aq) ------> 2H2O(l) +O2(g) = +0.4501 kj/mole*k C6H4((OH)2(aq) ------> C6H4O2(aq) + H2(g) = + 0.5033 kj/mole*k 2 H2(g) + O2(g) -----> 2 H2O (l) = -0.327.2 kj/mole*k
Which of the following reactions has a net lonic equation of H^+ (aq)+OH^- (aq)-> H20(l) a) 2NaOH(s)+CO2(g)-> Na2CO3 (s)+ H2O (l) b) NH3 (aq)+H2O(l)-> NH4OH(aq) c) KOH(aq)+ HClO4 (aq)-> H2O (l) +KClO4 (aq) d) MgH2 (s)+ 2H2O (l)->2H2(g)+Mg(OH)2 (aq) e) none of the above
Identify conjugate acid-base pairs in each of the following reactions. NH3(aq) + H2O(l) = NH4+ (aq) + OH- (aq) Check all that apply. H2O/NH3 NH4+/NH3 H2O/OH NH4+/OH- Submit Request Answer Part B OH(aq) + HF(aq) = H20(1)+F- (aq) Check all that apply. H2O/F- H20/OH HF/F- HF/OH