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Determine the mixture in equimolar quantities, if the PH is equal to, less than or greater than 7.A) A weak base and a strong acidB) a strong Base and a strong acidC) A strong base and an acid

Sagot :

We need to determine how is the PH in the given mixtures:

A) A weak base and a strong acid:

Acid and base react to form an acidic solution and, being acidic, this results in a solution with a pH lower than 7

B) A strong base and a strong acid:

When mixing a strong base and a strong acid, neutralization occurs, that is, a neutral pH or equal to 7 is obtained

C) A strong base and acid:

If we have a weak acid, when adding a strong base the pH approaches neutrality without sudden changes, but once the acid has been neutralized, just add a few drops of excess soda to obtain a sudden increase in pH as if there were only base. free. In this case, at the equivalence point the pH> 7

ANSWER:

A) Less than 7

B) Equal to 7

C) Greater than 7

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