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12 Questions

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Physical Pharmacy: Solubility Concepts

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Questions and Answers

What is the equivalent weight of H2SO4?

98 g/mol

49 g/mol (correct)

24.5 g/mol

196 g/mol

What is the number of mole equivalents of solute in 500 ml of a 0.17 M H2SO4 solution?

0.17 (correct)

0.085

0.34

0.425

What is the relationship between normality and molarity?

Normality is always twice molarity

Normality is always equal to molarity

Normality is never less than molarity (correct)

Normality is always less than molarity

What is the percentage strength (W/W) of a solution containing 5 g of boric acid in 100 g of water?

4.76% Signup and view all the answers

What is the normality of a 0.01 M H2SO4 solution?

0.02 Signup and view all the answers

What is the formula to calculate the normality (N) of a solution?

N = n × M Signup and view all the answers

What is the quantitative definition of solubility?

Maximum amount of solute that the solvent can contain without separation Signup and view all the answers

What is the importance of solubility in pharmacy?

To choose the best solvent medium for a drug or combination of drugs Signup and view all the answers

What is an example of a solubility expression?

1 gm of boric acid dissolves in 18 ml of water Signup and view all the answers

What is the term used to describe the number of moles of solute in one liter of solution?

Molarity Signup and view all the answers

How do you calculate the equivalent weight of a compound?

m.wt / valency Signup and view all the answers

What is the normality of a solution made up of dissolving 8.5 g of H2SO4 in enough water to make 500 ml solution?

2 N Signup and view all the answers