I AM GIVING 15 + 8 POINTS AND THE BRAINLIEST TO THE PERSON WHO CAN HELP ME WITH THESE QUESTIONS PLS!!!!!!

1). what is the new boiling point if 25 g of NaCI is dissolved in 1.0 Kg of water?


2). what is the freezing point of the solution in problem 1?


3). what are the new freezing and boiling points of water if 50. g of ethylene glycol (molecular mass = 62 g/mol) is added to 50. g of water?


4). when 5.0 g of a nonelectrolyte is added to 25 g of water, the new freezing point is -2.5 C. what is the molecular mass of the unknown compound?