jayjeralm070805

19.03.2020 • 

Chemistry

1. Calculate the hydrogen ion concentration [H+] for the aqueous solution in which [OH-] is 1.0x10^-3. Is this solution acidic, basic, or neutral?
2. Calculate the acid dissociation constant of ethanoic acid if you start with a 0.10000M solution of ethanoic acid, and it gives a hydrogen-ion concentration of 1.34x10^-3M.
3. If 3.70 grams of a gas dissolves in 1.0L of water at 0.5 atm or pressure, how much of the gas will dissolve if the pressure is raised to 3.5 atm? Assume the temperature is held constant.
4. A gas solubility of 2.75g/L at a pressure of 5.0 atm. At what pressure would it’s solubility be 0.5g/L.

Ответ:

senituliii

20.05.2021

Chemistry

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2.28

Explanation:

HCl(l) ===> H+ + cl-

HCl is a very strong acid. Almost all of it will decompose to the right. That means the concentration of H+ is 0.00530

pH = - log [H+]

pH = - log[0.00530]

pH = - - 2.2757

pH = 2.2757

Rounded this 2.28

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