]If 85 g of NaCl are dissolved in 1.4 kg of water, what would be the expected change in boiling point? The boiling point constant for water (Kb) is 0.51 °C/m.

0.53°C
1.1°C
1.5°C
2.1°C

Question

]If 85 g of NaCl are dissolved in 1.4 kg of water, what would be the expected change in boiling point? The boiling point constant for water (Kb) is 0.51 °C/m.

 0.53°C
 1.1°C
 1.5°C
 2.1°C

anonymous · Answer

@Ash90

anonymous · Answer

sorry about that my computer is lagging and i got shut off.
but here is how you do this one but this can be tricky:

Delta T = mKb , Kb, m = molality = moles solute/kg solvent = 
 85/58.5/1.4=1.03
1.03*0.51=0.53 c

anonymous · Answer

No you seriously rock and are like the most helpful person ever!! @Ash90

anonymous · Answer

Omg I'm so sorry but is there any way you could help me with one more?? @Ash90 I'll tag you in it!! <3

anonymous · Answer

let me know if i've answered them all :)