Question

question 11 of 18
points possible: 1.00
when using a properly stabilized balance, how should you ensure that you get the most accurate mass reading possible?
select one or more:
place the sample on the edge of the balance pan.
lean on the table to steady the balance during reading.
measure the mass of the sample at room temperature.
close the side shields on the balance during reading.

Explanation:

• Placing the sample on the edge of the balance pan is incorrect as it can lead to inaccurate readings due to uneven distribution of mass.
• Leaning on the table can cause vibrations or movement of the balance, affecting accuracy.
• Measuring at room temperature is correct because temperature changes can cause expansion or contraction of the sample or balance components, affecting mass readings.
• Closing the side shields is correct as it prevents air currents from disturbing the balance, ensuring a more accurate reading.

Answer:

C. Measure the mass of the sample at room temperature, D. Close the side shields on the balance during reading.