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Accuracy and Precision LOC

Last updated over 2 years ago

4 questions

1

1

1

Question 3

3.

Make sure there is a comma between your two answers

1

Question 1

1.

A student was given 15.00 grams of iron pellets and had to experimentally find the volume of the pellets. The volume that the student reported was 2.02 mL. The teacher calculated (using the accepted density), that the volume should be 1.91 mL. What is the percent error for this student's volume measurement?

4.23

5.76

3.43

6.52

Question 2

2.

A new student reads the lab direction "Measure 100 mL of water" and uses a beaker to make the measurement. Luckily, the teacher is nearby and points out that beakers are not precise enough to measure to one decimal place and shows the student how to use a graduated cylinder instead. When the student pours the water from the beaker to the graduated cylinder, the water only measured 96.2 mL. Calculate the percent error for the volume measurement. Assume the graduated cylinder provided the accepted measurement.

7.32

3.95

4.73

3.50

Question 4

4.

5%

3%

6%

4%