Which of these is true about a pH meter?
2 answers:
The pH meter measure the concentration of the hydrogen(+) ion, and the concentration of Hydroxide(-). Hydrogen is acidic, Hydroxide is basic.
The answer is D.
Answer: Option (D) is the correct answer.
Explanation:
An electronic device which is used to measure hydrogen ion activity is known as a pH meter.
That is, a pH meter is useful in detecting or knowing the acidity (due to 
ions) or alkalinity (due to 
ions) of a solution.
Thus, we can conclude that out of the given options it is true about a pH meter that it can be used in any acid-base titration.
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The answer is C: the more polar the molecules, the stronger the force. Hope this helps!
Because these characteristics do not depend on the amount of sample, nor do they change according to conditions.
Percentage Yield = (Actual Yield ÷ Theoretical Yield) × 100
∴ if theoretical yield is 26 g, but only 22.0 is recovered from the reaction,
then Percentage Yield = (22 g ÷ 26 g) × 100
= 84.6 %
Answer: D:wavelenght
Explanation: Students will understand that shorter wavelengths have higher frequency and energy.
