4. You transfer what you believe to be 40 mL of water from the graduated beaker

Question

4. You transfer what you believe to be 40 mL of water from the graduated beaker to the 100 mL graduated cylinder and record the volume as "40 mL" in your report. A point was deducted from your answer. Why? Actually, f a degree with changes in atmospheric pressure, but we will assume 100.0°C in this problem). Is the alcohol thermometer you used to 5. The temperature of ice water is 0.0°C. Boiling water has a temperature of 100.0C accurate? How many degrees difference was there between the "true" temperatures and the temperatures you recorded?

Explanation / Answer

4. Since there was no conformation regarding the volume to be exactly 40ml there was deduction of one marks.

Here the person is not sure whether the measured volume is exactly 40 ml. It can be 0.5ml more or less. In such cases the answer should contain the uncertainty value.

So the answer should have been 40 +/- 0.5 ml.

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