pH (Grade 12 NSC Matric Physical Sciences): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What does a pH value of 5 indicate about a solution?
What does a pH value of 5 indicate about a solution?
The solution is acidic
Which formula is used to calculate pH from hydrogen ion concentration?
Which formula is used to calculate pH from hydrogen ion concentration?
How many times more acidic is a solution with pH 2 compared to pH 3?
How many times more acidic is a solution with pH 2 compared to pH 3?
10 times
What is the pH of a solution with mol.dm⁻³?
What is the pH of a solution with mol.dm⁻³?
7
What is auto-protolysis of water?
What is auto-protolysis of water?
Proton transfer between water molecules
What is the value of at 25°C?
What is the value of at 25°C?
What pH results from mixing a strong acid with a strong base?
What pH results from mixing a strong acid with a strong base?
pH ≈ 7 (neutral)
What pH results from mixing a weak acid with a strong base?
What pH results from mixing a weak acid with a strong base?
pH ≈ 9 (basic)
Which indicator is best for a weak acid and strong base titration?
Which indicator is best for a weak acid and strong base titration?
Phenolphthalein
What is the pH range for bromothymol blue indicator?
What is the pH range for bromothymol blue indicator?
6.0 - 7.6