yeng

This page lists questions and answers that were posted by visitors named yeng.

Questions

The following questions were asked by visitors named yeng.

a solution of CH4N2O in water has a vapor pressure of 19.6 torr. at 25C. what is the mole fraction of CH4N2O in this solution? HELP ME WATER PURE PRESSURE (P0) IS 23.8 TORR VAPOR PRESSURE IS 19.6 TORR DON'T KNOW HOW TO SOLVE IT ? P(SOLUTION)= X (CH4N2O) W...

a solution is prepared by dissolving 4.9 g C12H22 O11 (nonelectrolyte) in 175 grams of water. calculate the freezing poitn and osmotic pressure (25C) of this solution.

how do you find melting point in colligative properites?

Answers

The following answers were posted by visitors named yeng.

i need help please

i need help now

how u find mole fraction please

mole fraction of water

i still don't get it sir

psoln = XH2OPoH2O Then XH2O + XCH4N2O = 1. Solve for XCH4N2O im confused still

i got 2.002 atm is that right

i have another question.

oles in 4.9g = grams/molar mass = ? m = molality = mols/kg solvent delta T = Kf*m. Solve for delta T and subtract from the normal freezing point of H2O (0C) to find the new freezing point. pi = MRT M is molarity but in dilute solutions M and m are almost...