Question #efcee

1 Answer
Nov 3, 2015

Answer:

If it turns red litmus blue, then the solution is obviously basic.

Explanation:

Sorry, I don't understand the question. You said that when you dip a red litmus paper in ethanol, it turns blue. If this is true, then the ethanol solution is basic - not acidic, which explains why when you dip the blue litmus paper nothing happens.

That is normal.

I checked the pH of ethanol over the internet and it says that the pH of 100% ethanol is 7.33 which makes it slightly basic.

Remember with litmus paper:

#color (red) (red)# to #color (blue) (blue)# = basic
#color (blue) (blue)# to #color (red) (red)# = acidic

So if you dip #color (red) (red)# litmus in a solution and there is no color change, then the solution must be acidic.

The same goes if you dip #color (blue) (blue)# litmus in a solution and there is no color change, then the solution must be basic.