1.

Consider aqueous solutions containing 6 g each of (I) CH_(3)COOH, (II) C_(3)H_(7)OH and (III) urea in 100 mL of solution. Which of them has the maximum molarity of all the particles (molecules and ions)?

Answer»

I
II
III
All equal

Solution :Since molar mass in 60 g in each case, the MOLARITY in each case = `(6 xx 1000)/(100 xx 60)`=1 M
`CH_(3)COOH` is a weak ELECTROLYTE and ionizes to some EXTENT `(CH_3COOH iff CH_3COO^(-)+ H^(+))`
HENCE, total molarity = `1- alpha + alpha =1+ alpha` (other substances are non-electrolytes)


Discussion

No Comment Found

Related InterviewSolutions