For the reaction which takes place when HC,H, O(aq) is added to Ba(OH) (ag)? Wha

Question

For the reaction which takes place when HC,H, O(aq) is added to Ba(OH) (ag)? What is the molecular equation? (4pts) 3. What are the ionic (2pts) and net ionic equations (2pts)? Of the two reactants, which is a strong electrolyte, which is a weak electrolyte? (2pts) For a 0.2500M solution of Ba(OH), what is the molarity of OH-? (2pts) What is the molarity of a HC,H,o, solution if 15.00 mL of this solution is titrated by 25.00 mL of a 0.2500M solution of Ba(OH),? (4pts) 4. Balance the equation for the reaction in basic media, (6pts) I(aq) + MnO,(ag)-L(ag)+Mn0,(s) What are the oxidation states for Mn in both reactant and product? (2pts) Of the reactants, which substance is being oxidized, which is being reduced? Which reactant is the oxidizing agent, which is the reducing agent? (4pts)

Explanation / Answer

Ans 3

Part a

Molecular equation

Ba(OH)2(aq) + 2CH3COOH (aq) = Ba(CH3COO)2 (aq) + 2H2O(l)

Part b

Molecular ionic equation

Ba2+(aq) + 2OH-(aq) + 2CH3COO- + 2H+ (aq) = Ba2+ + 2CH3COO- (aq) + 2H2O(l)

Net ionic equation

2OH-(aq) + 2H+ (aq) = 2H2O(l)

Part C

Ba(OH)2 = strong electrolyte

CH3COOH = weak electrolyte

Part d

Ba(OH)2 Completely dissociates in ionic form

Ba(OH)2 = Ba2+ + 2OH-

Molarity of Ba(OH)2 = 0.2500 M

Molarity of OH- = 2*0.2500 = 0.500 M

Part e

Molarity of CH3COOH, M1 =?

Volume of solution V1 = 15 mL

Molarity of Ba(OH)2, M2 = 0.2500 M

V2 = 25 mL

M1 x V1 = M2 x V2

M1 = 0.2500 x 25 / 15

M1 = 0.416 M

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