How to take the log to get the pH?

[tonyhu]

What does the math function mean?

[Sukanya Mohapatra 2G]

The formula for pH is pH = -log[H+]. This means pH is the negative base 10 logarithm of the hydrogen ion concentration of a solution. To calculate it, take the log of the hydrogen ion concentration and reverse the sign to get the answer.

[AngieGarcia_4F]

If you were given a Hydrogen concentration of [H+]=0.1M, for example, and asked to find the pH, you would plug the concentration into the formula pH=-log[H+]; pH=-log[0.1M], and just plug it into your calculator.

[Diana Chavez-Carrillo 2L]

If you were given a Hydrogen concentration of [H+]=0.1M, for example, and asked to find the pH, you would plug the concentration into the formula pH=-log[H+]; pH=-log[0.1M], and just plug it into your calculator.

So would our answer just be 1? Also, would this be interpreted as our pH being 1?

[Esha Chawla 2E]

If you were given a Hydrogen concentration of [H+]=0.1M, for example, and asked to find the pH, you would plug the concentration into the formula pH=-log[H+]; pH=-log[0.1M], and just plug it into your calculator.

So would our answer just be 1? Also, would this be interpreted as our pH being 1?

Yes - the pH would be 1.

On a related note, you can use the formula pOH = -log[OH-] to find the pOH. For example, if your [OH-] concentration were 0.1M, you would plug it into -log[0.1], resulting in a pOH of 1.

[Khushboo_3D]

If you were given a Hydrogen concentration of [H+]=0.1M, for example, and asked to find the pH, you would plug the concentration into the formula pH=-log[H+]; pH=-log[0.1M], and just plug it into your calculator.

So would our answer just be 1? Also, would this be interpreted as our pH being 1?

This would be interpreted as being a very strong acid.

[BeylemZ-1B]

would a really weak base be close to 7? or as far away from 7 as possible?

for example:
would a pH of 8 be more or less basic than a pH of 12?

[Eunice Nguyen 4I]

would a really weak base be close to 7? or as far away from 7 as possible?

for example:
would a pH of 8 be more or less basic than a pH of 12?

A pH of 8 would be less basic than a pH of 12. A really weak base would be as far away from 14.

[ahuang]

would a really weak base be close to 7? or as far away from 7 as possible?

for example:
would a pH of 8 be more or less basic than a pH of 12?

a pH of 8 would be less basic than a pH of 12.