POH=14-pH=14-2.5=11.5
pH=-log[H+]
2.5=-log [H+]
[H+]=10^-5/2
[OH-]=10^(14-5/2)=10^23/2
Speed of light is 3.0*10^8
frequency = wavelength / speed
= 1400 Hz
Answer: Because it's a combination of chemicals, vodka doesn't freeze at the same temperature as either water or alcohol. Of course, vodka will freeze, but not at the temperature of an ordinary freezer. This is because vodka contains enough alcohol to lower the freezing point of water below the -17°C of your typical freezer.
Explanation: .......
litmus paper
Because it will just tell if the solution is acidic or basic, it won't tell the pH
Mass is not conserved in chemical reactions. Mass is therefore never conserved because a little of it turns into energy in every reaction
