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Questions and Answers
Who introduced the concept of pH at the Carlsberg Laboratory?
Who introduced the concept of pH at the Carlsberg Laboratory?
- Alice Catherine Evans
- Arnold Orville Beckman
- Søren Peter Lauritz Sørensen (correct)
- William Mansfield Clark
What does the letter 'p' stand for in pH?
What does the letter 'p' stand for in pH?
- puissance
- potens
- potential (correct)
- potenz
What is the mathematical expression for pH?
What is the mathematical expression for pH?
- pH = -log(aH+) (correct)
- pH = log(aH+)
- pH = -log(1/aH+)
- pH = log(1/aH+)
Who invented the first electronic method for measuring pH?
Who invented the first electronic method for measuring pH?
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Which of the following correctly defines pH?
Which of the following correctly defines pH?
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Which of the following is true about the pH scale?
Which of the following is true about the pH scale?
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At 25 °C, which of the following pH values indicates a neutral solution?
At 25 °C, which of the following pH values indicates a neutral solution?
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According to the text, the electrode potential is proportional to pH when pH is defined in terms of activity. Which of the following equations represents this relationship correctly?
According to the text, the electrode potential is proportional to pH when pH is defined in terms of activity. Which of the following equations represents this relationship correctly?
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According to the International Standard ISO 31-8, how is pH precisely measured using a galvanic cell?
According to the International Standard ISO 31-8, how is pH precisely measured using a galvanic cell?
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According to the equation $pH(X) = pH(S) + \frac{E_S - E_X}{z}$, what does 'z' represent?
According to the equation $pH(X) = pH(S) + \frac{E_S - E_X}{z}$, what does 'z' represent?
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