If 5.85 gms of NaCl are dissolved in 90 gms of water, the mole fraction of NaCl is (a) 0.1 (b) 0.2 (c) 0.3 (d) 0.01 (e) 0.0196
Solution : `5.85 g NaCl=(5.85)/(58.5)` mole = 0.1 mol <br> `90 g H_(2)O=(90)/(18)` moles = 5 moles <br> mole fraction of NaCl = `(0.1)/(5+0.1)~~0.0196`. Step by step solution by experts to help you in doubt clearance & scoring excellent marks in exams.
