Podcast
Questions and Answers
What is the primary purpose of replacing the balance cover after placing the container on the balance pan?
What is the primary purpose of replacing the balance cover after placing the container on the balance pan?
- To reduce fluctuations in the balance reading (correct)
- To prevent contamination of the chemical
- To prevent the chemical from reacting with air
- To protect the balance from corrosion
Why should you never hold down the TARE button or bar on the balance?
Why should you never hold down the TARE button or bar on the balance?
- It will damage the balance cover
- It will erase the balance's memory
- It will cause the balance to malfunction
- It will switch the balance to a different unit of measurement (correct)
What should you use to clean the balance pan if a chemical is spilled on it?
What should you use to clean the balance pan if a chemical is spilled on it?
- A wet cloth
- The attached brush (correct)
- A paper towel
- A dry spatula
Why should you never return excess chemical to its original container?
Why should you never return excess chemical to its original container?
What should you do if you weigh out too much chemical?
What should you do if you weigh out too much chemical?
What type of equipment is suitable for weighing chemicals?
What type of equipment is suitable for weighing chemicals?
What is the primary purpose of rinsing a buret with a small amount of solution before filling it?
What is the primary purpose of rinsing a buret with a small amount of solution before filling it?
What is the function of the stopcock in a buret?
What is the function of the stopcock in a buret?
What is the correct procedure for removing a container from a balance pan?
What is the correct procedure for removing a container from a balance pan?
What is the purpose of using an indicator in a titration reaction?
What is the purpose of using an indicator in a titration reaction?
Why is it important to replace the appropriate lids on all reagent bottles when finished?
Why is it important to replace the appropriate lids on all reagent bottles when finished?
What is the significance of the zero mark on a buret?
What is the significance of the zero mark on a buret?
When using a buret, how is the volume typically found?
When using a buret, how is the volume typically found?
What is the purpose of keeping reagents on the plastic on the center bench?
What is the purpose of keeping reagents on the plastic on the center bench?
Why should you never put anything back into the reagent bottle?
Why should you never put anything back into the reagent bottle?
What is the approximate cost of the balances you will be using?
What is the approximate cost of the balances you will be using?
Why should you use an appropriately labeled spatula for each reagent bottle?
Why should you use an appropriately labeled spatula for each reagent bottle?
What should you do with excess solid reagent after use?
What should you do with excess solid reagent after use?
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