MEDCHEM LAB 1

• 1. t/f synthesize is in pure form

  a= false, not in pure form
• 2. Catalyst used in reaction 

  a= impurity
• 3.  technique for separating the components, or solutes, of a mixture on the basis of the relative amounts of each solute distributed between a moving fluid stream, called the mobile phase, and a contiguous stationary phase

  a= chromatography
• 4. Technique used to separate soluble solid from solvent

  a= evaporation
• 5. Simplest separation technique,separate insoluble solid from solvent

  a= filtration
• 6. Other term for crystallization

  a= fractional crystallization
• 7. Procedure from purified and pre compound in a suitable solvent.

  a= crystallization
• 8. Method of purification that is based on principle that solubility of most solids increases with an increase of temperature

  a= recrystallization
• 9. 2 types of filtration

  a= gravitational filtration, vacuum filtration
• 10. A type of filtration which is most common and simplest way. Ex. filter paper , funnel

  a= gravitational filtration
• 11. A type of filtration with the used of buchner funnel

  a= vacuum filtration
• 12. t/f in dissolving emulsion is possible

  a= true
• 13. Tendency to make solidify solutes liquid again

  a= oiling out
• 14. Low melting point equals?

  a= low impurities
• 15. Less substance equal?

  a= greater depression
• 16. Exhibit polymorphism

  a= polymorphs
• 17. Polymorphism has the ability of its solid material to insist in ____ crystalline forms

  a= 2 or more
• 18. First step in recrystallization process

  a= carried solubility test
• 19. Last step of recrystallization process

  a= determine its purity( melting point)
• 20. Determine how pure the crystallize substance is?

  a= percentage yield
• 21. High percentage yield equals?

  a= low impurity