Question

H-3."
(1) If you are given a 2M NaOH solution having density 1 g/mL, then find the molality of solution,
(11) Find the molarity of 5m (molal) NaOH solution having density 1.5 g/ml.
(iii) Find the mole fraction of solute in problem (0)
(iv) Find the mole fraction of solute in problem (1)
(v) Find the % (WW) of NaOH in solution in problem (1)
(vi) Find the % (w/w) of NaOH in solution in problem (11)
(vii) Find the % (W/V) of NaOH in solution in problem (11)​

Answer 1

Answer:

Explanation:

2m moles 2 moles  / llt

and convert density into g/lt

density = 1000 g/lt

2 moles of naoh = 80 gm

weight of solvent = 920 gm

molality = 2/0.92=2.173

molality which is mole/weight of solvent