Asolution has a ph of 10.20 at 25°c. what is the hydroxide-ion concentration at 25°c?

Using equation:

pH+pOH=14

We are given pH=10.20 at 25°c.

So putting this value in the equation,

We have pOH=14-10.20

= 3.8

pOH=-log(OH)

-log(OH)=3.8

OH=0.00015M

So hydroxide concentration will be 0.00015 M.

altitude, density, pressure

air gets less dense the higher the altitude and also the air pressure is less as altitude rises.

the cold front replaces the warmer air at the ground level changing the wind to be breezy and denser.there is also an immediate drop in the temperature.