Question

1- which Ph measurement method is quantitative- litmus paper or ph paper? 2- which ph measurement...

1- which Ph measurement method is quantitative- litmus paper or ph paper?

2- which ph measurement method is qualitative-litmus paper or the ph meter?

3- what is meant by the term "ph indicator solution"

4- which has the lowest H+ concentration, HCI, water, or NaOH?

5- is NaOH an acid or base ?

Which of the unknowns has the highest H+ concentration?
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Answer #1

1. Answer: pH paper is quantitative: The difference between pH Paper and litmus paper is that

pH Paper can give the pH value of the solution whereas litmus paper can determine whether a solution is acidic or basic.

2. Answer: pH meter is quantitative because it shows the exact pH of the solution.

3. Answer: changes colour according to the acidity or basicity of the solution

4 Answer: NaOH has lowest H+ concentration (though NaOH is basic in nature, so [H+] = 10-pH)

5. Answer: NaOH is basic though it produces OH- ion

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