The following measurements were made to determine the density of a material whose value was, according to the Handbook of Chemistry and Physics, 1.24 g/mL Trial #1 1.20 g/mL

Trial #2 1.22 g/mL

Trial #3 1.22 g/mL

a. make a general comment on the accuracy of these results

b. make a general comment on the precision of these results

c. use the average of the three trials as the “measured value” and determine the numerical value for the percent error.

Question 2 (10 points)

The following measurements were made to determine the density of a material whose value was, according to the handbook of Chemistry and Physics, 1.15 g/mL

Trial #1 0.95 g/mL

Trial #2 1.16 g/mL

Trial #3 1.26 g/mL

a. make a general comment on the accuracy of these results

b. make a general comment on the precision of these results

c. use the average of the three trials as the “measured value” and determine the numerical value for the percent error.