Calculate mole solute in solution?

Question

I added an amount of an unknown sample 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

molality = moles of solute/kilograms of solvent

notice how the units cancel out to moles of solute:

(moles of solute/kg of solvent)*(kg)= moles of solute

Answer 2

So for the example above would the moles be 0.18 mol?

Answer 3

molality x kg solvent is not your answer.