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Desk 2. Refractive index of acetone-chloroform mixtures as a function of the mass percent chloroform within the mixture.

If 93.Three kg of PbO is heated with excess charcoal and 77.3 kg of pure lead is obtained, what's the p.c yield? The resulting PbO is then transformed to the pure metallic by reaction with charcoal. This process serves two purposes: 1) it permits us to seek out any systematic error (and determine any correction issue to use), and 2) the instrument will then be set close to to the index of refraction to be measured, premium vape devices thus minimizing the time needed to make every subsequent measurement.

1, you will then have an equation that relates the stress at which boiling happens (which you measured) with the composition of the liquid (which you measured), the azeotropic composition and the temperature.