[scogan]

Hi guys.

Not sure if this is the correct place to ask this question - I'm a complete novice at chemistry

I actually have two questions that I'm hoping you guys can help me out with...

1) What does the phrase "pH at X%" mean? I have two detergents that both say "pH at 1% is X.X", where X.X is the claimed pH level. But to what does the 1% refer?

2) I'd like to know if it is possible (where possible = simple) to calculate the pH of a solution of detergent and water knowing only the pH level of each and the volume ratio of the solution. Is there a simple way of doing this?

Cheers 

[Borek]

1) What does the phrase "pH at X%" mean? I have two detergents that both say "pH at 1% is X.X", where X.X is the claimed pH level. But to what does the 1% refer?

Most likely concentration.

2) I'd like to know if it is possible (where possible = simple) to calculate the pH of a solution of detergent and water knowing only the pH level of each and the volume ratio of the solution. Is there a simple way of doing this?

No. Especially as it is not clear if the detergent is a mixture or a single substance. In the latter case things get a little easier, but it is still not a simple plug and chug.

[scogan]

Thanks Borek.