a solution is made by dissolving 25 g NaCl in enough water to make 1.0 L solution. Assume that density of the solution is 1.0 g/mL. calculate the mass percent, molarity, molality, and mole fraction of NaCl.

Question

whats wrong

25 g NaCl 1.0 L solution
1.0 g/mL
25 g NaCl/58.44 g NaCl= .428 mol
25g/58.44g x100= 42.8% mass percent
1000g solvent (H20)
molarity- .428 mol/1.0 L= .428 M
molality- .428 mol/1 kg= .428 molal
whats wrong? idk

Answer 1

responded below.
mass % should be 2.5%. M and m are right.