1. Demo: IMF 1. What is 250+ 250 = __________
mL H2O mL C2H5OH = __________ mL soln
(yellow) (blue)
mL NaOH mL HCl = ____________ mL soln
(blue) (red)
250 mL volumetric flask-hand blown, accurate to the mL

2. Volume is not additive, but the mass is conserved.

3. Volume is not additive, but the mass is conserved.
Because you have created water and spreads out and ions of Na+ and Cl-, you will be needing more volume.

5. Solubility of polar molecules
Properties are due to intermolecular forces
Like dissolves like
Polar substances will dissolve polar molecules
Non polar substances will dissolve non- polar molecules