Question

1. recall from the introduction that to tare (or zero) a balance means to set the digital reading to zero before placing a sample on the balance. what would be the benefit of taring (or zeroing) the balance with the weighing boat already on top of the balance?

a. there is no benefit.
b. no calculation is needed to determine the mass of the sample added to the weighing boat.
c. the mass of the weighing boat can easily be determined.

Explanation:

Taring (zeroing) the balance with the weighing boat on it allows the balance to subtract the boat's mass automatically. So when you add the sample, the balance will show only the sample's mass, eliminating the need to calculate the sample mass by subtracting the boat's mass from the total (boat + sample) mass. Option A is wrong because there is a benefit, and Option C is not the main benefit of taring (taring is about avoiding the need for that calculation, not about how easy it is to determine the boat's mass). So the correct answer is B.

Answer:

B. No calculation is needed to determine the mass of the sample added to the weighing boat.