Copper Sulfate Experiment Procedures

This lab tutorial guides students through determining the mole ratio of water to copper sulfate. It covers the necessary materials, preparation steps, heating process, observations, and final cleanup. Students learn to handle lab equipment safely, make observations, and understand the chemical changes occurring during the experiment.

What is the primary objective of this lab experiment?

• To observe the color change in copper sulfate

• To find the melting point of copper sulfate

• To determine the mole ratio of water to copper sulfate

• To measure the density of copper sulfate

Why is it important to zero out the scale before measuring the mass of the evaporating dish?

• To avoid including the mass of the scale in the measurement

• To ensure the scale is calibrated

• To prevent the dish from sliding off

• To make sure the dish is clean

What is the purpose of adjusting the height of the Bunsen burner flame?

• To reduce the noise of the flame

• To change the color of the flame

• To ensure the flame heats the dish to a high degree

• To make the flame more visible

What should you observe as the copper sulfate is heated?

• The flame turning green

• The copper sulfate melting

• The color of the copper sulfate changing

• The evaporating dish cracking

Why should you not look directly into the flame during the experiment?

• Heat rises and can distort your view

• It can cause eye strain

• The light is too bright

• The heat can damage your eyes

What indicates that the copper sulfate is ready after heating?

• The copper sulfate starts to bubble

• The dish starts to cool

• The copper sulfate becomes completely void of water

• The flame turns blue

What is the significance of the term 'anhydrous' in this experiment?

• It means the compound is hydrated

• It indicates the presence of water

• It refers to the color change

• It signifies the absence of water

What should you do after rehydrating the copper sulfate?

• Rinse it out into the sink

• Dispose of it in the trash

• Store it for future use

• Leave it in the dish

Why is it important to let the dish cool before handling it?

• To allow the copper sulfate to solidify

• To prevent burns

• To ensure accurate mass measurement

• To avoid breaking the dish

What should you do with the evaporating dish after cleaning it?

• Store it in a drawer

• Leave it on the lab table

• Hang it up to dry

• Place it back on the scale