Solubility Investigation

What is the process of dissolving salt in water called?

• evaporation

• condensation

• dissolution

• melting

What factors can affect the rate at which salt dissolves in water?

• Humidity, pH level, volume

• Temperature, surface area, stirring/agitation, concentration

• Density, shape, smell

• Pressure, time, color

How does stirring the solution affect the rate of dissolving salt in water?

• Stirring the solution has no effect on the rate of dissolving salt in water.

• Stirring the solution decreases the rate of dissolving salt in water.

• Stirring the solution causes the salt to evaporate from the water.

• Stirring the solution increases the rate of dissolving salt in water.

Explain why adding more salt to a fixed amount of water may reach a point where no more salt can dissolve.

• Adding more salt to a fixed amount of water may reach a point where no more salt can dissolve because the water becomes saturated at its solubility limit.

• Adding more salt to water will make it evaporate faster

• The salt will disappear if more is added

• The water will turn into a solid if more salt is added

What is the term used to describe a solution that has dissolved all the solute it can hold at a given temperature?

• saturated solution

• overloaded solution

• maximized solution

• unsaturated solution

How does increasing the temperature of the water affect the solubility of salt?

• Increasing the temperature of water has no effect on the solubility of salt.

• Increasing the temperature of water decreases the solubility of salt.

• Increasing the temperature of water causes salt to evaporate.

• Increasing the temperature of water increases the solubility of salt.

Describe an experiment you could conduct to determine the solubility of salt in water at different temperatures.

• Mixing salt with oil instead of water

• Using different types of salt for each temperature

• Conduct a series of experiments by preparing saturated salt solutions at different temperatures and recording the temperature at which no more salt can dissolve.

• Measuring the solubility of sugar instead of salt

What role does surface area play in the dissolving process of salt in water?

• Surface area increases the rate of dissolution by allowing more salt particles to come into contact with the water.

• Surface area has no impact on the dissolving process of salt in water.

• Surface area decreases the rate of dissolution by limiting the contact between salt particles and water.

• Increasing surface area causes the salt to dissolve slower due to reduced exposure to water.

How does the concentration of the salt solution change as more salt is added to the water?

• The concentration of the salt solution decreases.

• The concentration of the salt solution remains the same.

• The concentration of the salt solution becomes solid.

• The concentration of the salt solution increases.

Explain why it is important to control variables such as temperature and stirring speed in a solubility investigation.

• Consistency in variables can introduce bias and skew the findings

• Varying temperature and stirring speed leads to more accurate outcomes

• Controlling variables is unnecessary and does not impact the results

• It is important to control variables such as temperature and stirring speed in a solubility investigation to ensure consistency and accuracy of results.