1. The density of copper is listed as 8.94 g/cm3. Two students each make three density determinations of samples of the substance. Student A’s results are 7.3 g/mL, 9.4 g/mL, and 8.3 g/mL. Student B’s results are 8.4 g/cm3, 8.8 g/cm3, and 8.0 g/cm3. Compare the two sets of results in terms of precision and accuracy.
2. Carry out the following calculations.
52.13 g + 1.7502 g
12m x 6.41 m
16.25 g
C.__________________
5.1442 mL
3. Perform the following operations. Express each answer in Scientific Notation.
(1.54 x 10-2 g) + (2.86 x 10-1 g)
(7.023 x 109 g) - (6.62 x 107 g)
(8.99 x 10-4 m) x (3.57 x 104 m)
2.17 x 10 -3 g
_________________
5.022 x 104 mL
2. Carry out the following calculations.
52.13 g + 1.7502 g
12m x 6.41 m
16.25 g
C.__________________
5.1442 mL
3. Perform the following operations. Express each answer in Scientific Notation.
(1.54 x 10-2 g) + (2.86 x 10-1 g)
(7.023 x 109 g) - (6.62 x 107 g)
(8.99 x 10-4 m) x (3.57 x 104 m)
2.17 x 10 -3 g
_________________
5.022 x 104 mL