4. The density of lead is 11.3 g/cm, Determine the mass of 4.25 cm of lead, (18.09)

48.03grams

Explanation:

Density of a substance is calculated as follows:

Density (g/cm³) = mass (g) / volume (cm³)

Based on the information given in this particular question:

Density of lead (Pb) = 11.3 g/cm³

Volume of lead (Pb) = 4.25 cm³

Density = m/V

11.3 = mass/4.25

Mass = 48.025

= 48.03grams.

answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error