Determine each of the following for a 0.061 M KOH solution: Part A: Determine [

Question

Determine each of the following for a 0.061 M KOH solution:
Part A: Determine [ H3O+] for solution using 2 significant figures and appropriate units
Part B: Determine pH for this solution
Part C: Write the balanced equation for the reaction with H2SO4 ( express as a chemical equation, and identify all phases)
Part D: Calculate the volume in milliliters of KOH solution required to neutralize 45.0mL of a 0.36M H2SO4 solution. ( using 2 significant figures) Determine each of the following for a 0.061 M KOH solution:
Part A: Determine [ H3O+] for solution using 2 significant figures and appropriate units
Part B: Determine pH for this solution
Part C: Write the balanced equation for the reaction with H2SO4 ( express as a chemical equation, and identify all phases)
Part D: Calculate the volume in milliliters of KOH solution required to neutralize 45.0mL of a 0.36M H2SO4 solution. ( using 2 significant figures)
Part A: Determine [ H3O+] for solution using 2 significant figures and appropriate units
Part B: Determine pH for this solution
Part C: Write the balanced equation for the reaction with H2SO4 ( express as a chemical equation, and identify all phases)
Part D: Calculate the volume in milliliters of KOH solution required to neutralize 45.0mL of a 0.36M H2SO4 solution. ( using 2 significant figures)

Explanation / Answer

Part A)

concentration of KOH = 0.061 M

[OH-] = 0.061 M

[OH-] [H3O+] = 1.0 x 10^-14

[H3O+] = 1.6 x 10^-13 M

Part B)

pH = -log [H3O+] = -log (1.6 x 10^-13)

pH = 12.78

part C)

2 KOH (aq) + H2SO4 (aq)   -------------------> K2SO4 (aq) + 2 H2O (l)

Part D)

2 KOH (aq) + H2SO4 (aq)   -------------------> K2SO4 (aq) + 2 H2O (l)

M1 V1 / n1 = M2 V2 / n1

0.061 x V1 / 2 = 0.36 x 45 / 1

V1 = 531 mL

volume of KOH = 5.3 x 10^2 mL

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