Pls answer the question
2 answers:
Answer:
1. Fractional distillation
2. Evaporation
3. Centrifuge
4. Fractional distillation
5. Electrophoresis
Explanation:
Two miscible (easily mixing fluids) are separated according to the difference in the boiling points. Thus, fractional distillation is used. This uses the phase equilibria between the liquid entering the plate and the vapor leaving the distillation plate.
Sometimes a reflux is needed to separate the substances and produce a pure substance and preserve heat.
Evaporation will work for a salt and water solution. The water is simply boiled off. What remains is the
Lastly, proteins in blood are separated by gravity in a centrifuge.
Electrophoresis separates amino acids according to their charges.
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Answer:
The molar solubility of lead bromide at 298K is 0.010 mol/L.
Explanation:
In order to solve this problem, we need to use the Nernst Equaiton:
E is the cell potential at a certain instant, E⁰ is the cell potential, n is the number of electrons involved in the redox reaction, [ox] is the concentration of the oxidated specie and [red] is the concentration of the reduced specie.
At equilibrium, E = 0, therefore:
[red] = 0.010 M
The reduction will happen in the anode, therefore, the concentration of the reduced specie is equivalent to the molar solubility of lead bromide.