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20 ml of 0.1 M H2SO4 solution is added to 30 mL of 0.2 M NH4OH solution. PKb of NH4OH is 4.7. The pH of the resultant mixture is ?? The Pka of acetic acid and PKb of NH4OH are 4.76 and 4.75 respectively. Calculate the pH of ammonium acetate solution?? One is solved by buffer mixture method and another is by hydrolysis mixture method. How to distinguish and find out how to solve?? Please help?
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20 ml of 0.1 M H2SO4 solution is added to 30 mL of 0.2 M NH4OH solutio...
Solution:
pH of mixture of H2SO4 and NH4OH solution
Step 1: Write the balanced chemical equation for the reaction between H2SO4 and NH4OH.
H2SO4 + 2NH4OH → (NH4)2SO4 + 2H2O
Step 2: Calculate the moles of H2SO4 and NH4OH in the given volumes.
n(H2SO4) = M × V = 0.1 × 20/1000 = 0.002 mol
n(NH4OH) = M × V = 0.2 × 30/1000 = 0.006 mol
Step 3: Determine the limiting reactant. NH4OH is the limiting reactant as it is present in lesser amount.
Step 4: Calculate the amount of NH4OH that reacts with H2SO4.
n(NH4OH) reacted = n(H2SO4)/2 = 0.002/2 = 0.001 mol
Step 5: Calculate the moles of NH4+ and OH- ions produced by the reaction.
n(NH4+) = n(NH4OH) - n(NH4OH) reacted = 0.006 - 0.001 = 0.005 mol
n(OH-) = 2 × n(NH4OH) reacted = 2 × 0.001 = 0.002 mol
Step 6: Calculate the concentration of NH4+ and OH- ions in the final solution.
[ NH4+ ] = n(NH4+) / Vtotal = 0.005 / (20 + 30)/1000 = 0.0833 M
[ OH- ] = n(OH-) / Vtotal = 0.002 / (20 + 30)/1000 = 0.0333 M
Step 7: Calculate the pOH of the solution.
pOH = -log[ OH- ] = -log(0.0333) = 1.48
Step 8: Calculate the pH of the solution.
pH = 14 - pOH = 14 - 1.48 = 12.52
pH of ammonium acetate solution by buffer mixture method
Step 1: Write the balanced chemical equation for the reaction between NH4OH and CH3COOH.
NH4OH + CH3COOH → NH4CH3COO + H2O
Step 2: Calculate the moles of NH4OH and CH3COOH in the given volumes.
n(NH4OH) = M × V = 0.2 × 100/1000 = 0.02 mol
n(CH3COOH) = M × V = 0.1 × 100/1000 = 0.01 mol
Step 3: Determine the limiting reactant. CH3COOH is the limiting reactant as it is present in lesser amount.
Step 4: Calculate the amount of CH3COOH that reacts with NH4OH.
n(CH3COOH) reacted = n(NH4OH) = 0.02 mol
Step 5: Calculate the amount of NH4+ and CH3COO- ions produced by the reaction.
n(NH4+) = n(NH4OH) - n
pH of mixture of H2SO4 and NH4OH solution
Step 1: Write the balanced chemical equation for the reaction between H2SO4 and NH4OH.
H2SO4 + 2NH4OH → (NH4)2SO4 + 2H2O
Step 2: Calculate the moles of H2SO4 and NH4OH in the given volumes.
n(H2SO4) = M × V = 0.1 × 20/1000 = 0.002 mol
n(NH4OH) = M × V = 0.2 × 30/1000 = 0.006 mol
Step 3: Determine the limiting reactant. NH4OH is the limiting reactant as it is present in lesser amount.
Step 4: Calculate the amount of NH4OH that reacts with H2SO4.
n(NH4OH) reacted = n(H2SO4)/2 = 0.002/2 = 0.001 mol
Step 5: Calculate the moles of NH4+ and OH- ions produced by the reaction.
n(NH4+) = n(NH4OH) - n(NH4OH) reacted = 0.006 - 0.001 = 0.005 mol
n(OH-) = 2 × n(NH4OH) reacted = 2 × 0.001 = 0.002 mol
Step 6: Calculate the concentration of NH4+ and OH- ions in the final solution.
[ NH4+ ] = n(NH4+) / Vtotal = 0.005 / (20 + 30)/1000 = 0.0833 M
[ OH- ] = n(OH-) / Vtotal = 0.002 / (20 + 30)/1000 = 0.0333 M
Step 7: Calculate the pOH of the solution.
pOH = -log[ OH- ] = -log(0.0333) = 1.48
Step 8: Calculate the pH of the solution.
pH = 14 - pOH = 14 - 1.48 = 12.52
pH of ammonium acetate solution by buffer mixture method
Step 1: Write the balanced chemical equation for the reaction between NH4OH and CH3COOH.
NH4OH + CH3COOH → NH4CH3COO + H2O
Step 2: Calculate the moles of NH4OH and CH3COOH in the given volumes.
n(NH4OH) = M × V = 0.2 × 100/1000 = 0.02 mol
n(CH3COOH) = M × V = 0.1 × 100/1000 = 0.01 mol
Step 3: Determine the limiting reactant. CH3COOH is the limiting reactant as it is present in lesser amount.
Step 4: Calculate the amount of CH3COOH that reacts with NH4OH.
n(CH3COOH) reacted = n(NH4OH) = 0.02 mol
Step 5: Calculate the amount of NH4+ and CH3COO- ions produced by the reaction.
n(NH4+) = n(NH4OH) - n
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20 ml of 0.1 M H2SO4 solution is added to 30 mL of 0.2 M NH4OH solution. PKb of NH4OH is 4.7. The pH of the resultant mixture is ?? The Pka of acetic acid and PKb of NH4OH are 4.76 and 4.75 respectively. Calculate the pH of ammonium acetate solution?? One is solved by buffer mixture method and another is by hydrolysis mixture method. How to distinguish and find out how to solve?? Please help?
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20 ml of 0.1 M H2SO4 solution is added to 30 mL of 0.2 M NH4OH solution. PKb of NH4OH is 4.7. The pH of the resultant mixture is ?? The Pka of acetic acid and PKb of NH4OH are 4.76 and 4.75 respectively. Calculate the pH of ammonium acetate solution?? One is solved by buffer mixture method and another is by hydrolysis mixture method. How to distinguish and find out how to solve?? Please help? for Chemistry 2024 is part of Chemistry preparation. The Question and answers have been prepared according to the Chemistry exam syllabus. Information about 20 ml of 0.1 M H2SO4 solution is added to 30 mL of 0.2 M NH4OH solution. PKb of NH4OH is 4.7. The pH of the resultant mixture is ?? The Pka of acetic acid and PKb of NH4OH are 4.76 and 4.75 respectively. Calculate the pH of ammonium acetate solution?? One is solved by buffer mixture method and another is by hydrolysis mixture method. How to distinguish and find out how to solve?? Please help? covers all topics & solutions for Chemistry 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 20 ml of 0.1 M H2SO4 solution is added to 30 mL of 0.2 M NH4OH solution. PKb of NH4OH is 4.7. The pH of the resultant mixture is ?? The Pka of acetic acid and PKb of NH4OH are 4.76 and 4.75 respectively. Calculate the pH of ammonium acetate solution?? One is solved by buffer mixture method and another is by hydrolysis mixture method. How to distinguish and find out how to solve?? Please help?.
20 ml of 0.1 M H2SO4 solution is added to 30 mL of 0.2 M NH4OH solution. PKb of NH4OH is 4.7. The pH of the resultant mixture is ?? The Pka of acetic acid and PKb of NH4OH are 4.76 and 4.75 respectively. Calculate the pH of ammonium acetate solution?? One is solved by buffer mixture method and another is by hydrolysis mixture method. How to distinguish and find out how to solve?? Please help? for Chemistry 2024 is part of Chemistry preparation. The Question and answers have been prepared according to the Chemistry exam syllabus. Information about 20 ml of 0.1 M H2SO4 solution is added to 30 mL of 0.2 M NH4OH solution. PKb of NH4OH is 4.7. The pH of the resultant mixture is ?? The Pka of acetic acid and PKb of NH4OH are 4.76 and 4.75 respectively. Calculate the pH of ammonium acetate solution?? One is solved by buffer mixture method and another is by hydrolysis mixture method. How to distinguish and find out how to solve?? Please help? covers all topics & solutions for Chemistry 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 20 ml of 0.1 M H2SO4 solution is added to 30 mL of 0.2 M NH4OH solution. PKb of NH4OH is 4.7. The pH of the resultant mixture is ?? The Pka of acetic acid and PKb of NH4OH are 4.76 and 4.75 respectively. Calculate the pH of ammonium acetate solution?? One is solved by buffer mixture method and another is by hydrolysis mixture method. How to distinguish and find out how to solve?? Please help?.
Solutions for 20 ml of 0.1 M H2SO4 solution is added to 30 mL of 0.2 M NH4OH solution. PKb of NH4OH is 4.7. The pH of the resultant mixture is ?? The Pka of acetic acid and PKb of NH4OH are 4.76 and 4.75 respectively. Calculate the pH of ammonium acetate solution?? One is solved by buffer mixture method and another is by hydrolysis mixture method. How to distinguish and find out how to solve?? Please help? in English & in Hindi are available as part of our courses for Chemistry.
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20 ml of 0.1 M H2SO4 solution is added to 30 mL of 0.2 M NH4OH solution. PKb of NH4OH is 4.7. The pH of the resultant mixture is ?? The Pka of acetic acid and PKb of NH4OH are 4.76 and 4.75 respectively. Calculate the pH of ammonium acetate solution?? One is solved by buffer mixture method and another is by hydrolysis mixture method. How to distinguish and find out how to solve?? Please help?, a detailed solution for 20 ml of 0.1 M H2SO4 solution is added to 30 mL of 0.2 M NH4OH solution. PKb of NH4OH is 4.7. The pH of the resultant mixture is ?? The Pka of acetic acid and PKb of NH4OH are 4.76 and 4.75 respectively. Calculate the pH of ammonium acetate solution?? One is solved by buffer mixture method and another is by hydrolysis mixture method. How to distinguish and find out how to solve?? Please help? has been provided alongside types of 20 ml of 0.1 M H2SO4 solution is added to 30 mL of 0.2 M NH4OH solution. PKb of NH4OH is 4.7. The pH of the resultant mixture is ?? The Pka of acetic acid and PKb of NH4OH are 4.76 and 4.75 respectively. Calculate the pH of ammonium acetate solution?? One is solved by buffer mixture method and another is by hydrolysis mixture method. How to distinguish and find out how to solve?? Please help? theory, EduRev gives you an
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