PHA 327 - Exam 2 - Solutions 1
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A solution can be prepared from components in what states?
Liquid solids and gases
What is a solution in physiochemical terms?
A mixture of solid liquids and gases
What is a solution in pharmaceutical terms?
Liquid preparations containing drugs or chemical substances dissolved in solvents or ina mixture of miscible solvents
Solutions are what type of system?
How many phases are in a solution?
1 = monophasic
Genarlly, solutions are:
Solid dosage forms dissolved in liquid media
Why are liquid oral dosage forms advantageous?
- Ease of administration
- Better tasting
- Good for poorly soluble drugs
What are various types of liquid oral dosage forms?
- Aromatic eaters
What are Elixirs?
Sweetened hydroalcoholic solutions
What is the term for a Sweetened hydroalcoholic solution?
What is a spirit?
Solutions of aromatic materials in alcohols
What is the term for a solution of aromatic materials in alcohols?
What is an aromatic water?
Aromatic materials in water
What are tinctures?
Alcoholic solutions prepared by extracting active constituents from crude drugs
What is the term for an alcoholic solution prepared by extracting active constituents from crude drugs?
How many phases does a true solution have?
What is the maximum particle size of a true solution?
What are the components of a binary solution?
Solute and solvent
The component of a solution in the larger quantity is the:
When we dissolve solid in liquid, which is usually the solvent?
When we use water as a component of a solution is it considered the solute or solvent?
What is an example of Solid-solid solution?
What is an example of a Solid-liquid, liquid-liquid or gas-liquid solution?
What is an example of a solid-gas and gas-gas solution?
What is Molarity?
Moles solute/ Liter solutions
What species should not be in a solution when using Molarity?
What is normality?
Grams of equivalent/liter of solution
What type of species is normality used for?
What is Molality?
Moles of solute/Kg of solvent
What is the advantage of Molality?
It does not change with temperature
What is the mole fraction?
The ratio of moles of solute to the total moles present in solution
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