Does "science" say to salt pasta water? #shorts #throwbackthursday #science #SciShow

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Source: https://www.chem.fsu.edu/chemlab/chm1046course/colligative.html

Calculations:
Package directions call for 2 tsp salt in 4 qt water
4 qt water ≅ 3.79 L = 3.79 kg
2 tsp salt ≅ 11.84 g ≅ 0.2 mol

Boiling point elevation: ΔT = iKbm
ΔT = change in temperature (℃)
i = dissociation constant = 2
Kb = boiling point elevation constant = 0.512 ℃/m
m = molality of solute (mol solute / kg solvent)
0.2 mol NaCl / 3.79 kg H2O = 0.05

ΔT = 2 * 0.512 * 0.05 = 0.05 ℃
Category
Science School
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