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The weakest acid known is going to be placed right before neutral (7) on the pH scale. This question is difficult to answer, because there are so many acids in nature, including organic acids. Most acids are weak acids. If you had a list to choose from, you could have a better answer.

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10y ago
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11y ago

Silver Nitrate Sodium Carbonate, which is harmless.

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13y ago

Stomach acid.

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15y ago

6

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Q: Which is weakest acid on the pH scale?
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Related questions

What is the pH scae?

The PH scale is a scale that determines where a liquid is a acid,alkeli or netrual.1-7 being acid.7 being neutral and 7-14 being alkali. 1 is the strongest acid,6 is the weakest.8 is the weakest alkali and 14 is the strongest


Weakest pH of acid?

The highest pH an acid can have is just below 7.


Can a pH meter be used to distinguish between a strong acid and a weak acid?

Yes, the Ph scale determines an acid/base's concentration. 0-7 on the scale refers to an Acid, and 7-14 Basic. 7=Neutral, neutral being the weakest. The closer to 7 the weaker the acid would be.


What is acid measured on the pH scale?

An acid would be on the left side of a pH scale


What is the weakest acid?

Sodium Hydroxide pH is 13.0


What colour is acid on a PH scale?

The Ph scale does not have colours.


What solutions is the weakest acid pH of 2.4 pH of 5.2 pH of 6.4 pH of 8.6 or pH of 10.1?

pH=6,4


The scale used to classify the strength of acid and basic solutions?

The pH scale.


What is the scale used to indicate the strength of an acid or base called?

pH Scale


The pH of citric acid?

Citric Acid is a weak acid. It is round about 6 on the pH scale.


Is a scale that measures the acidity or basicity of a solution along a range of zero to 14?

A P.H Scale is most commonly used to measure this stuff. 0-6 are the acids, where zero is the most acidic and 6 is the weakest acids. 7 is neutral and 8-14 are the bases. 14 is the most basic and 8 is the weakest base.


What is the weakest acid on a pH solution from 2.4 through 10.1?

2,4 is a lower pH than 10,1.