Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices. (1) A solution of concentration 7.6 %(m/m) contains 7.6 grams of solute per 1 liter of solution.
(2) The use of antifreeze in car radiators in the winter and the use of rock salt in making homemade ice cream are based on the same chemical principle.
(3) One mole of any molecular solute raises the boiling point of one kilogram of water by 1.86^oC..

Question

Quizplus · Accepted Answer

Statement (1) is FALSE because a 7.6% (m/m) solution means 7.6 grams of solute per 100 grams of solution, not per liter. Statement (2) is TRUE as both processes involve colligative properties, specifically freezing point depression. Statement (3) is FALSE because the boiling point elevation constant for water is 0.512°C/m, not 1.86°C/m, which is the freezing point depression constant.

Characterize EACH of the Three Given Statements as Being TRUE