Given:
pH is 5.27
Concentration of sol'n 0.013m (weak monoprotic)
Determine H+ concentration:
[H+] = 10^-pH
= 10^-5.27
= 5.37x10^-6
Ka = [H+] [A-] / [HA]
= (5.37x10^-6) * (5.37x10^-6) / (0.013 - 5.37x10^-6)
= 2.22x10^-9
Answer:
when all the ice has melted!! :)
Explanation:
This statement is true in fact to mount Everest atmospheric pressure sit at about one third of that at sea level.
<span>The glass is half full is an example of volume.
The glass is half empty is an example of non-volume.
A blank page is a non-example of everything including volume.</span>
Hello!
The change in enthalpy for a given chemical reaction is equal to <span>∆hf0 of products minus ∆hf0 of reactants
The change in enthalpy allows chemists to know the energy that is consumed or produced in a chemical reaction.
If the change in enthalpy is negative (i.e. < 0) the reaction is exothermic, meaning that the reaction gives heat to the surroundings.
If the change in enthalpy is positive (i.e > 0) the reaction is endothermic, meaning that the reaction consumes heat from the surroundings.
Have a nice day!
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