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Answer to Question #23808 in Physical Chemistry for Brittany

Question #23808
True or False:

If the pH of a solution is 10, its pOH is 4.

NaOH is a strong base. The [OH-] of a 0.10M NaOH solution is 0.010M.

In a titration in which an acid-base indicator is used, the color of the indicator always changes at the equi alence point of the titration.

A solution of a salt of a strong acid and a weak base will be slightly acidic.

Buffers are solutions that resist changes in pH when limited amounts of acid or base are added.

Acetic acid, a weak acid, and sodium acetate, a salt, form an amphoteric solution when they are dissolved in water.

The process of the anions of the dissociated salt accepting hydrogen ions from water or the captions of the dissociated salt donating hydrodgen ions to water is called ion-product constant for water.

Expert's answer
If the pH of a solution is 10, its pOH is 4. True ( pOH = 14-pH )( pOH = -log[OH-] )

NaOH is a strong base. The [OH-] of a 0.10M NaOH solution is 0.010M& True (100 % dissociation)

In a titration in which an acid-base indicator is used, the color of the indicator always changes at the equivalence point of the titration. True (A drop of indicator solution is added to the titration at the start; when the color changes the endpoint has been reached, this is an approximation of the equivalence point.)

A solution of a salt of a strong acid and a weak base will be slightly acidic. True

Buffers are solutions that resist changes in pH when limited amounts of acid or base are added. True

Acetic acid, a weak acid, and sodium acetate, a salt, form an amphoteric solution when they are dissolved in water. True (can accept and donate electrons)

The process of the anions of the dissociated salt accepting hydrogen ions from water or the captions of the dissociated salt donating hydrodgen ions to water is called ion-product constant for water.& False ( The process of the anions of the dissociated salt accepting hydrogen ions from water or the captions of the dissociated salt donating hydrodgen ions to water is called hydrolysis)

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