15
AssignmentMultiple Select

Lab: Solubility

Question 15 • *26-27 CFISD TX-Chemistry A CR

Which help you ensure that temperature readings are accurate? Check all that apply.

Answer
A
shaking the thermometer before use
B
using the thermometer as a stirring rod
C
making sure that the liquid inside the thermometer is at eye level when taking the temperature
D
making sure that the bulb of the thermometer does not touch the bottom the beaker or the ice when taking the temperature
E
using the Celsius scale instead of the Fahrenheit scale when taking temperature readings

Explanation

Read the liquid level at eye level to avoid a parallax error, which can make the reading appear higher or lower than it is. Keep the thermometer’s bulb from touching the beaker’s bottom or the ice so it measures the temperature of the substance rather than the container or a local contact point. Shaking the thermometer, using it to stir, or choosing Celsius instead of Fahrenheit does not ensure a more accurate reading.

AI-written and checked against the verified answer.

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