Calculating pH (Leaving Cert Chemistry): Quizzes
📚Quizzes
Practise the questions
14 questions from this quiz
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Practise the questions
14 questions from this quiz
What does pH measure in a solution?
What does pH measure in a solution?
Concentration of ions
At 25°C, what is the relationship between pH and pOH?
At 25°C, what is the relationship between pH and pOH?
How do strong acids behave in water?
How do strong acids behave in water?
They completely dissociate
How many ions does one molecule release?
How many ions does one molecule release?
2
What is the first step in calculating pH of a strong base?
What is the first step in calculating pH of a strong base?
Calculate pOH
If a strong acid's concentration decreases by a factor of 10, how does pH change?
If a strong acid's concentration decreases by a factor of 10, how does pH change?
pH increases by 1 unit
How do weak acids dissociate in water?
How do weak acids dissociate in water?
Only partially
What is the simplified formula for in weak acid solutions?
What is the simplified formula for in weak acid solutions?
At the same concentration, how do weak acid pH values compare to strong acids?
At the same concentration, how do weak acid pH values compare to strong acids?
Weak acids have higher pH
How can electrical conductivity distinguish between strong and weak acids?
How can electrical conductivity distinguish between strong and weak acids?
Strong acids have higher conductivity
What happens to pH when acid concentration increases?
What happens to pH when acid concentration increases?
pH decreases (more acidic)
How does temperature affect the relationship ?
How does temperature affect the relationship ?
The value changes at other temperatures
What type of solutions do pH calculations apply to?
What type of solutions do pH calculations apply to?
Aqueous solutions only
For what concentration range do pH calculations work best?
For what concentration range do pH calculations work best?
Dilute solutions (< 1 M)