What is the objective for synthesize aspirin experiment?

How do you calculate the reference doses for lead and naphthalene?

Laboratory Activity Frankenstein - Osmotic Pressure Objective: To determine the effects of concentration of solute on osmotic pressure of solutions Materials: raisins, tomato, salt, water, and containers Procedure: 1. Before you did this activity, make a prediction by drawing pictures of what will happen to the raisins before and after the activity. Before After 2. in a container, dissolve salt in water until no more salt dissolves. Another container will hold pure distilled water. 3. Submerged five raisins in each container. 4. Note the appearance of the raisins. From time to time, inspect how the raisins look, Record your observations. 5. Explain the reason behind why the raisins appear like that when you submerged the raisins in different container.

This pre-analytical variable can have an effect on chemistry tests which are read visually by spectrophotometry:   Question 8 options:   all answers are correct   icterus   lipemia   hemolysis