It would have been an act of kindness to include the boiling point elevation constant as well as the normal boiling point of CS2. I looked them up on the web. Make sure that the numbers I'm using are the same as you are using for Kb and b.p.
The boiling point elevation constant, kb, for CS2 is 2.3 o^C (degrees Celsius) and its boiling point is 46.3 o^C (degrees Celsius).Aug 28, 2018
delta T = Kb*molality
delta T = 49.48 - 46.3 = 3.18
Kb = 2.3
molality = mols/kg solvent = mols/0.1 kg CS2
mols = grams/molar mass = 35.5 g/molar mass.
molar mass CS2 = ???. Solve for this.
Substitute those values into the above and solve for molar mass. molar mass is the only unknown. Post your work if you get stuck.
Calculate the molecular mass of sulphur if 35.5 g of sulphure dissolves in 100 g of CS2 to produce a solution that has a boiling point of 49.48 c.
2 answers
i asked for the molar mass for the Sulphur ......However you give me the given for calculating the molar mass for it and it is 257.2g/mol