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Equal volumes of solutions containing 1 mole of an acid and 1 mole of a base respectively are mixed. Which of these mixtures will give pH more than 7?
- a)Sodium hydroxide + Acetic acid
- b)Potassium hydroxide + Sulphuric acid
- c)Ammonium hydroxide + Sulphuric acid
- d)Sodium hydroxide + Hydrochloric acid
Correct answer is option 'A'. Can you explain this answer?
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Equal volumes of solutions containing 1 mole of an acid and 1 mole of ...
Understanding pH of Acid-Base Mixtures
When equal volumes of solutions containing 1 mole of an acid and 1 mole of a base are mixed, the resultant pH depends on the strength and nature of the acid and base involved. Here's a breakdown of the options provided:
Sodium Hydroxide + Acetic Acid
- Nature of Reactants: Sodium hydroxide (NaOH) is a strong base, while acetic acid (CH3COOH) is a weak acid.
- Reaction Outcome: When mixed, sodium hydroxide will completely neutralize acetic acid, but there will be an excess of hydroxide ions (OH-) because acetic acid doesn't dissociate completely.
- Resulting pH: The excess hydroxide ions will lead to a pH greater than 7, making the solution basic.
Potassium Hydroxide + Sulphuric Acid
- Nature of Reactants: Potassium hydroxide (KOH) is a strong base, and sulfuric acid (H2SO4) is a strong acid.
- Reaction Outcome: This mixture will completely neutralize each other, resulting in a neutral solution if stoichiometrically balanced.
- Resulting pH: The resulting pH will be around 7.
Ammonium Hydroxide + Sulphuric Acid
- Nature of Reactants: Ammonium hydroxide (NH4OH) is a weak base, and sulfuric acid is a strong acid.
- Reaction Outcome: The strong acid will dominate, leading to a solution that is acidic.
- Resulting pH: The pH will be less than 7.
Sodium Hydroxide + Hydrochloric Acid
- Nature of Reactants: Both sodium hydroxide and hydrochloric acid (HCl) are strong.
- Reaction Outcome: They will completely neutralize each other.
- Resulting pH: The resulting pH will be 7, indicating neutrality.
Conclusion
Among the options, only the mixture of sodium hydroxide and acetic acid results in a pH greater than 7 due to the presence of excess hydroxide ions after the weak acid is neutralized.
When equal volumes of solutions containing 1 mole of an acid and 1 mole of a base are mixed, the resultant pH depends on the strength and nature of the acid and base involved. Here's a breakdown of the options provided:
Sodium Hydroxide + Acetic Acid
- Nature of Reactants: Sodium hydroxide (NaOH) is a strong base, while acetic acid (CH3COOH) is a weak acid.
- Reaction Outcome: When mixed, sodium hydroxide will completely neutralize acetic acid, but there will be an excess of hydroxide ions (OH-) because acetic acid doesn't dissociate completely.
- Resulting pH: The excess hydroxide ions will lead to a pH greater than 7, making the solution basic.
Potassium Hydroxide + Sulphuric Acid
- Nature of Reactants: Potassium hydroxide (KOH) is a strong base, and sulfuric acid (H2SO4) is a strong acid.
- Reaction Outcome: This mixture will completely neutralize each other, resulting in a neutral solution if stoichiometrically balanced.
- Resulting pH: The resulting pH will be around 7.
Ammonium Hydroxide + Sulphuric Acid
- Nature of Reactants: Ammonium hydroxide (NH4OH) is a weak base, and sulfuric acid is a strong acid.
- Reaction Outcome: The strong acid will dominate, leading to a solution that is acidic.
- Resulting pH: The pH will be less than 7.
Sodium Hydroxide + Hydrochloric Acid
- Nature of Reactants: Both sodium hydroxide and hydrochloric acid (HCl) are strong.
- Reaction Outcome: They will completely neutralize each other.
- Resulting pH: The resulting pH will be 7, indicating neutrality.
Conclusion
Among the options, only the mixture of sodium hydroxide and acetic acid results in a pH greater than 7 due to the presence of excess hydroxide ions after the weak acid is neutralized.
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Equal volumes of solutions containing 1 mole of an acid and 1 mole of ...
Acetic acid (Weak Acid) + Sodium Hydroxide (Strong Base) → Sodium Acetate (Basic)
Sulphuric acid (Strong Acid) + Potassium Hydroxide (Strong Base) → Potassium Sulphate (Neutral)
Sulphuric Acid (Strong Acid) + Ammonium hydroxide (Weak base) → Ammonium sulphate (Acidic)
Hydrochloric Acid (Strong Acid) + Sodium hydroxide (Strong Base) → Sodium Chloride (Neutral)
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Equal volumes of solutions containing 1 mole of an acid and 1 mole of a base respectively are mixed. Which of these mixtures will give pH more than 7?a)Sodium hydroxide + Acetic acidb)Potassium hydroxide + Sulphuric acidc)Ammonium hydroxide + Sulphuric acidd)Sodium hydroxide + Hydrochloric acidCorrect answer is option 'A'. Can you explain this answer?
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Equal volumes of solutions containing 1 mole of an acid and 1 mole of a base respectively are mixed. Which of these mixtures will give pH more than 7?a)Sodium hydroxide + Acetic acidb)Potassium hydroxide + Sulphuric acidc)Ammonium hydroxide + Sulphuric acidd)Sodium hydroxide + Hydrochloric acidCorrect answer is option 'A'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about Equal volumes of solutions containing 1 mole of an acid and 1 mole of a base respectively are mixed. Which of these mixtures will give pH more than 7?a)Sodium hydroxide + Acetic acidb)Potassium hydroxide + Sulphuric acidc)Ammonium hydroxide + Sulphuric acidd)Sodium hydroxide + Hydrochloric acidCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Equal volumes of solutions containing 1 mole of an acid and 1 mole of a base respectively are mixed. Which of these mixtures will give pH more than 7?a)Sodium hydroxide + Acetic acidb)Potassium hydroxide + Sulphuric acidc)Ammonium hydroxide + Sulphuric acidd)Sodium hydroxide + Hydrochloric acidCorrect answer is option 'A'. Can you explain this answer?.
Equal volumes of solutions containing 1 mole of an acid and 1 mole of a base respectively are mixed. Which of these mixtures will give pH more than 7?a)Sodium hydroxide + Acetic acidb)Potassium hydroxide + Sulphuric acidc)Ammonium hydroxide + Sulphuric acidd)Sodium hydroxide + Hydrochloric acidCorrect answer is option 'A'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about Equal volumes of solutions containing 1 mole of an acid and 1 mole of a base respectively are mixed. Which of these mixtures will give pH more than 7?a)Sodium hydroxide + Acetic acidb)Potassium hydroxide + Sulphuric acidc)Ammonium hydroxide + Sulphuric acidd)Sodium hydroxide + Hydrochloric acidCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Equal volumes of solutions containing 1 mole of an acid and 1 mole of a base respectively are mixed. Which of these mixtures will give pH more than 7?a)Sodium hydroxide + Acetic acidb)Potassium hydroxide + Sulphuric acidc)Ammonium hydroxide + Sulphuric acidd)Sodium hydroxide + Hydrochloric acidCorrect answer is option 'A'. Can you explain this answer?.
Solutions for Equal volumes of solutions containing 1 mole of an acid and 1 mole of a base respectively are mixed. Which of these mixtures will give pH more than 7?a)Sodium hydroxide + Acetic acidb)Potassium hydroxide + Sulphuric acidc)Ammonium hydroxide + Sulphuric acidd)Sodium hydroxide + Hydrochloric acidCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 10.
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