Question

Record your hypothesis as an "if, then" statement for the rate of dissolving the compounds:

a) If the temperature increases, then the rate of dissolving will also increase.
b) If the temperature decreases, then the rate of dissolving will increase.
c) If the concentration decreases, then the rate of dissolving will decrease.
d) If the concentration increases, then the rate of dissolving will also increase.
Record your hypothesis as an "if, then" statement for the boiling point of the compounds.

a) If the molecular weight increases, then the boiling point will increase.
b) If the molecular weight decreases, then the boiling point will decrease.
c) If the pressure increases, then the boiling point will decrease.
d) If the pressure decreases, then the boiling point will also decrease.

Answer 1

The rate of dissolving compounds is influenced by temperature and concentration. The boiling point of compounds is influenced by molecular weight and pressure.

Step-by-step explanation:

For the rate of dissolving compounds:

1. If the temperature increases, then the rate of dissolving will also increase. This is because heating up a solvent gives the molecules more kinetic energy, resulting in more frequent and forceful collisions between the solvent and solute molecules.
2. If the concentration decreases, then the rate of dissolving will decrease. This is because a lower concentration means fewer solute particles available to dissolve in the solvent, leading to a slower dissolution process.

For the boiling point of compounds:

1. If the molecular weight increases, then the boiling point will increase. This is because heavier molecules have stronger intermolecular forces, requiring more energy to break those forces and reach the boiling point.
2. If the pressure decreases, then the boiling point will also decrease. This is because a lower pressure means fewer gas molecules above the liquid surface, reducing the need for high energy to overcome the vapor pressure and reach the boiling point.