Asked by Chemgam

(a) What is the pH of 50 mL of a 0.2M glycolic acid aqueous solution after adding 5 mL of 0.25 M KOH? The pKa of glycolic acis is 3.83 at 25 Celsius.


(b) Classify each of the following compounds as either "acidic", "basic", or "amphoteric" (able to act as either an acid or a base).

i)K2O =



ii) Al(OH)3 =



iii) Si(OH)4 =



iv) CaO =
Answered by Anonymous
K2O - basic
Al(OH)3 - amphoteric
Si(OH)4 - acidic
CaO - basic
Answered by lena
what about a?
Answered by Anonymous
a) 2.9844
Answered by Odesa
a) 2.9844
b)K2O = basic
Al(OH)3 = amphoteric
Si(OH)4 = acidic
CaO = basic
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