The freezing point of 3.75xx10^(-2)M aqueous solution of weak acid HA is 272.9K. The molality of the solution was found to be 0.0384 molal. Find the [H^(+)] of the solution on adding 3.75xx10^(-2) moles of NaA to one litre of the above solution. (K_(f) "of water" =1.86 "molal"^(-1))

The freezing point of 3.75xx10^(-2)M aqueous solution of weak acid HA

1.	The freezing point of 3.75xx10^(-2)M aqueous solution of weak acid HA is 272.9K. The molality of the solution was found to be 0.0384 molal. Find the [H^(+)] of the solution on adding 3.75xx10^(-2) moles of NaA to one litre of the above solution. (K_(f) "of water" =1.86 "molal"^(-1))
Answer» ANSWER :`6.89xx10^(-3)M;`