When using the tare function on a balance, what should you do first?

• A. Calibrate the balance with a standard weight before using the tare function.
• B. Press the tare button before placing anything on the balance.
• C. Place the empty container on the balance and press the tare button.
• D. Add the sample to the container before pressing the tare button.

Answer: (C)

Verified step by step guidance

1. Understand that the tare function on a balance is used to subtract the weight of an empty container or vessel so that only the weight of the sample is measured.
2. First, place the empty container on the balance. This allows the balance to register the weight of the container separately.
3. Next, press the tare button. This action resets the displayed weight to zero, effectively ignoring the container's weight.
4. After taring, add the sample to the container. The balance will now show only the weight of the sample, excluding the container.
5. Remember that calibrating the balance with a standard weight is a separate step to ensure accuracy but is not part of the immediate process when using the tare function.