Podcast
Questions and Answers
What is dissolution?
What is dissolution?
- Transfer of molecules or ions from a solid state into solution (correct)
- Transfer of gases into a liquid state
- Transfer of solvents from one state to another
- Transfer of molecules from solution to solid state
What characterizes a saturated solution?
What characterizes a saturated solution?
- Contains less solute than necessary for saturation
- Insoluble part in equilibrium with dissolved solute (correct)
- Low temperature and pressure
- Unlimited ability to dissolve solute
What defines an unsaturated or sub-saturated solution?
What defines an unsaturated or sub-saturated solution?
- In equilibrium with the insolute part
- Contains a lower concentration of dissolved solute than required for saturation (correct)
- Contains more solute than necessary for saturation
- Only exists at high temperatures
How are supersaturated solutions formed?
How are supersaturated solutions formed?
What can convert supersaturated solutions to stable saturated solutions?
What can convert supersaturated solutions to stable saturated solutions?
Which process results in additional amounts of solute appearing as a precipitate in a solution?
Which process results in additional amounts of solute appearing as a precipitate in a solution?
What are the main factors that influence the solubility of a compound?
What are the main factors that influence the solubility of a compound?
What does the dielectric constant measure?
What does the dielectric constant measure?
How is solubility expressed in the USP and National Formulary?
How is solubility expressed in the USP and National Formulary?
What is the latest version of the USP and National Formulary available?
What is the latest version of the USP and National Formulary available?
In what units is the dielectric constant expressed?
In what units is the dielectric constant expressed?
Which method is NOT used to quantitatively express solubility?
Which method is NOT used to quantitatively express solubility?
What is the formula for calculating milliequivalents?
What is the formula for calculating milliequivalents?
How many types of homogeneous mixtures of solute and solvent are possible based on their states of matter?
How many types of homogeneous mixtures of solute and solvent are possible based on their states of matter?
In the formula for normality, what does 'mol.wt.' represent?
In the formula for normality, what does 'mol.wt.' represent?
If the valency of an ion is 2 and its equivalent weight is 50, what is its milliequivalent value?
If the valency of an ion is 2 and its equivalent weight is 50, what is its milliequivalent value?
For a 1 N solution of a substance with a valency of 2, what mass of the substance would be required for 1 liter of the solution?
For a 1 N solution of a substance with a valency of 2, what mass of the substance would be required for 1 liter of the solution?
What does one milliequivalent represent?
What does one milliequivalent represent?
What is the phenomenon known as when gases are liberated from solutions by the introduction of an electrolyte or a non-electrolyte?
What is the phenomenon known as when gases are liberated from solutions by the introduction of an electrolyte or a non-electrolyte?
What causes the resultant escape of gas when salt is added to a 'carbonated' solution?
What causes the resultant escape of gas when salt is added to a 'carbonated' solution?
Which gases show deviations from Henry's law due to chemical reactions with the solvent, resulting in increased solubility?
Which gases show deviations from Henry's law due to chemical reactions with the solvent, resulting in increased solubility?
Why is hydrogen chloride significantly more soluble in water compared to oxygen?
Why is hydrogen chloride significantly more soluble in water compared to oxygen?
What effect does the attraction of salt ions or highly polar non-electrolytes have on the density of the aqueous environment adjacent to gas molecules?
What effect does the attraction of salt ions or highly polar non-electrolytes have on the density of the aqueous environment adjacent to gas molecules?
What is the unit of molarity?
What is the unit of molarity?
In the expression % w/v in chemistry, what does 'w' and 'v' stand for respectively?
In the expression % w/v in chemistry, what does 'w' and 'v' stand for respectively?
What does molality express?
What does molality express?
Which concentration term is based on the number of moles of solute divided by the total number of moles of solute and solvent?
Which concentration term is based on the number of moles of solute divided by the total number of moles of solute and solvent?
If you dissolve 40 grams of sodium hydroxide in 1000 grams (1 kg) of water, what is the molality?
If you dissolve 40 grams of sodium hydroxide in 1000 grams (1 kg) of water, what is the molality?
'Parts (p)' refers to the number of parts of solute dissolved in a stated number of parts of solution. Which parts by weight combination represents solid in a liquid?
'Parts (p)' refers to the number of parts of solute dissolved in a stated number of parts of solution. Which parts by weight combination represents solid in a liquid?
