Calculate mole solute in solution?

Question

I added 0.2968g of an unknown to a solution. I found that the molality of the solution is 0.085m and there is 0.0156kg of solvent. Calculate the moles of solute present in solution?

Thanks!

Answer 1

http://www.jiskha.com/display.cgi?id=1347138502

Answer 2

How did you convert 0.2968 g to mols without the molar mass.