The molality of an aqueous NaBr solution is 250 m What is th

The molality of an aqueous NaBr solution is 2.50 m. What is the mass percent of NaBr?

(NaBr molar mass = 102.9 g/mol)

Solution

mass percent / molarmass = 2.50

mass percent of NaBr = 2.50*102.9= 257.25