DAT BOOSTER GEN CHEM PRACTICE
TEST 3 QUESTIONS AND ANSWERS
WITH SOLUTIONS 2024
Name the ideal gas assumptions - ANSWER 1. All collisions are elastic and that no energy is lost.
2. Gas particles are in continuous, rapid, and random motion.
3. There are no attractive or repulsive forces between the gas particles.
4. The gas particles themselves have no volume.
5. The gas particles are spread far apart from each other relative to their size.
You want to pick which substance will be soluble in a particular solvent. How would you determine this?
- ANSWER Remember like-dissolves-like
How to calculate mole fraction? - ANSWER -calculate the total moles and divide them over the total
pressure
- think of trying to find the percentage of a specific gas in a compound
specific heat - ANSWER The amount of energy required to raise the temperature of 1 gram of a
substance by 1 degree Celcius
What contributes to the high boiling point of water? - ANSWER Hydrogen bonds
dissociation constant - ANSWER tendency of the acid to dissociate into ions, releasing a hydrogen
When comparing the strength of an acid, what feature is dependent on? - ANSWER Dissociation constant
NOT concentration
colligative properties - ANSWER properties that depend on the concentration of solute particles but not
on their identity
i.e. boiling point, freezing point, osmotic pressure, vapor pressure
TEST 3 QUESTIONS AND ANSWERS
WITH SOLUTIONS 2024
Name the ideal gas assumptions - ANSWER 1. All collisions are elastic and that no energy is lost.
2. Gas particles are in continuous, rapid, and random motion.
3. There are no attractive or repulsive forces between the gas particles.
4. The gas particles themselves have no volume.
5. The gas particles are spread far apart from each other relative to their size.
You want to pick which substance will be soluble in a particular solvent. How would you determine this?
- ANSWER Remember like-dissolves-like
How to calculate mole fraction? - ANSWER -calculate the total moles and divide them over the total
pressure
- think of trying to find the percentage of a specific gas in a compound
specific heat - ANSWER The amount of energy required to raise the temperature of 1 gram of a
substance by 1 degree Celcius
What contributes to the high boiling point of water? - ANSWER Hydrogen bonds
dissociation constant - ANSWER tendency of the acid to dissociate into ions, releasing a hydrogen
When comparing the strength of an acid, what feature is dependent on? - ANSWER Dissociation constant
NOT concentration
colligative properties - ANSWER properties that depend on the concentration of solute particles but not
on their identity
i.e. boiling point, freezing point, osmotic pressure, vapor pressure
