Podcast
Questions and Answers
What is the purpose of decantation?
What is the purpose of decantation?
- To separate a liquid from a gas in a homogeneous mixture
- To separate a solid from a liquid in a homogeneous mixture
- To separate a solid from another solid in a heterogeneous mixture
- To separate a liquid from a dense, insoluble solid in a heterogeneous mixture (correct)
Which of the following would not be a suitable method for decantation?
Which of the following would not be a suitable method for decantation?
- Allowing the solid particles to settle to the bottom of the container
- Slowly pouring off the liquid, leaving the solid residue behind
- Using a glass rod to assist in the pouring of the liquid
- Stirring the mixture vigorously before pouring off the liquid (correct)
Why would decantation not be a useful method for separating fine silt particles from water?
Why would decantation not be a useful method for separating fine silt particles from water?
- The silt particles are too dense to settle to the bottom
- The silt particles remain suspended in the water and do not form a distinct layer (correct)
- The silt particles are too small to be separated by decantation
- The silt particles are too light to settle to the bottom
What is the purpose of using a stirring rod or glass rod during the decantation process?
What is the purpose of using a stirring rod or glass rod during the decantation process?
What is the name of the liquid that is poured off during the decantation process?
What is the name of the liquid that is poured off during the decantation process?
What is the name of the solid layer that remains at the bottom of the container after decantation?
What is the name of the solid layer that remains at the bottom of the container after decantation?
Which of the following is a key requirement for decantation to be an effective separation method?
Which of the following is a key requirement for decantation to be an effective separation method?
What is the purpose of tilting the container during the decantation process?
What is the purpose of tilting the container during the decantation process?
Which of the following is NOT a characteristic of a suitable mixture for decantation?
Which of the following is NOT a characteristic of a suitable mixture for decantation?
What is the main advantage of using a stirring rod or glass rod during the decantation process?
What is the main advantage of using a stirring rod or glass rod during the decantation process?
