which solution will have highest concentration at 25C
Answers
Explanation:
Base BOH is dissociated as follows
BOH⇌B
+
+OH
−
Both KOH and NaOH are pretty soluble in water:
A saturated solution of KOH in water at 25C and 1atm is about 22M (121g in 100ml)
A saturated solution of NaOH in water at 20C and 1atm is about 28M (111g in 100ml
Other compounds are infinitely soluble in water, but this is offset by higher molecular masses, such as sulphuric acid. If you 'dissolved' a large amount of which in one molecule of water the solution would be 19M, and the lower molecular mass nitric acid similarly 'dissolved' would sit at 24M
At the extreme end of the scale - a large volume of water (low molecular weight, high density) 'dissolved' in one molecule of ethanol would have a molarity very close to that of 'pure' water, fairly high at 55.5M (at room temperature, pressure, etc).
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