EK chem 721

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inaccensa

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Which of the following is not a way of defining an Arrhenius acid?
--A substance that increases the H+ concentration in aqueous sol
-- A substance that increases the pH of an aq solution
-- A substance that increases the pOH of an aq sol
-- A substance that decreases the OH- concentration in an aqueous solution

Ex- HCl --> H+ Cl-
Isnt the H+ concentration increasing to decrease the pH?

I chose A, but the answer is B- Arrhenius acid decrease the pH of the solution????

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Which of the following is NOT a way of defining an Arrhenius acid?
--A substance that increases the H+ concentration in aqueous sol
-- A substance that increases the pH of an aq solution
-- A substance that increases the pOH of an aq sol
-- A substance that decreases the OH- concentration in an aqueous solution

Ex- HCl --> H+ Cl-
Isnt the H+ concentration increasing to decrease the pH?

I chose A, but the answer is B- Arrhenius acid decrease the pH of the solution????

Which of the following is NOT a way of defining an Arrhenius acid?
 
Acids decrease the pH of a solution. Arrenhius acids are acids that donate a proton in water, so they always increase H+ concentration, thus lowering pH.

The question is asking which statement is false.
 
Which of the following is not a way of defining an Arrhenius acid?
--A substance that increases the H+ concentration in aqueous sol
-- A substance that increases the pH of an aq solution
-- A substance that increases the pOH of an aq sol
-- A substance that decreases the OH- concentration in an aqueous solution

Ex- HCl --> H+ Cl-
Isnt the H+ concentration increasing to decrease the pH?

I chose A, but the answer is B- Arrhenius acid decrease the pH of the solution????

I think you got confused. It asks which is not a way of defining an arrhenius acid. B is the only one that doesn't fit.
 
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