the consentration of Sr(OH)2 I

S 0.02 WHAT IS THE CONSENTRATION OF OH ASSUMING COMPLETE DISSOCIATION

1 answer

Concentration is the word you need.

if the molar concentration of Sr(OH)2 is .02M, then you have with complete dissociation .02M of Sr++, and .04M of OH-. Now why did the OH double? The reason is that in each molecule of Sr(OH)2 you had two OH ions.