Here are step-by-step instructions for weighing the mass of the dried metal strips from test tubes 1 and 5 using an electronic balance and recording their masses in a table:
Step 1: Prepare the electronic balance:
- Ensure that the electronic balance is clean and calibrated according to the manufacturer's instructions.
- Place the balance on a stable and level surface.
Step 2: Prepare the metal strips:
- Carefully remove the dried metal strips from test tubes 1 and 5.
- Handle the metal strips with clean, dry hands or use clean forceps to avoid contamination.
Step 3: Zero the electronic balance:
- Turn on the electronic balance and allow it to stabilize.
- Make sure the balance reads zero with no objects placed on it. If not, use the tare or zero function to reset it to zero.
Step 4: Weigh the metal strip from test tube 1:
- Place the metal strip from test tube 1 onto the center of the balance pan. Ensure it is positioned carefully to avoid slipping or falling.
- Allow the balance to stabilize, and once the reading becomes constant, record the mass displayed on the balance. Use appropriate units (e.g., grams).
Step 5: Weigh the metal strip from test tube 5:
- Remove the metal strip from test tube 1 from the balance.
- Repeat the process by placing the metal strip from test tube 5 onto the center of the balance pan.
- Allow the balance to stabilize, and once the reading becomes constant, record the mass displayed on the balance. Again, use appropriate units (e.g., grams).
Step 6: Record the masses in a table:
- Create a table with two columns: one for test tube 1 and one for test tube 5.
- In the respective columns, record the masses you obtained for the metal strips from each test tube.
Step 7: Check and confirm the recorded masses for accuracy.
This step-wise process ensures that you accurately weigh the dried metal strips from test tubes 1 and 5 and record their masses in a table.