If boiling point of water is 1000C. How much gram of NaCl is added in 500 g of water to increase its boiling point by approx o b H O 1 C K 0.52K kg / mole. x (AllMS 2019)

For the solute, which can undergo association or dissociation in a given solvent, Elevation in boiling point b b T iK m, x Where, Kb = molal elevation constant m = molality, i = van’t Hoff factor SOLUTIONS 64 o b 1 b 2 solvent Given, T 1 Cand M NaCl 58.5 K H O 0.52K kg mol for NaCl n 2 and w 500g Thus solvent b b Solvent Solvent w 1000 T i K M w w 1000 1 2 0.52 58.5 500 58.5 500 w 28.125g 2 0.52 1000 x x x x x x x x x Hence, option (b) is the correct.