(Solved): Lab6  Part 2: Density of an Irregular Solid The shape of some solids does not permit the use of ...

Part 2: Density of an Irregular Solid The shape of some solids does not permit the use of formulas to calculate their volume. Other techniques must be used in these cases. If the sample is heavier than water and does not dissolve in water, the volume of the sample can be determined "by displacement," i.e., the volume of the sample is equal to the volume of the water it displaces when it sinks. This is the concept behind the following procedure to determine the density of lead shot. 1. Obtain a \( 10.00 \mathrm{~mL} \) graduated cylinder. Phace approximately \( 5 \mathrm{~mL} \) of water in the cylinder. Record the exart wot.n. of the water in the cylinder. (Estimate the last mumber, report two 2. Weigh the graduated cylinder, with the water in it, on a Cent-o-gram balance. Record the weight as accurately as possible. (Estimate the last number, three digits affer the decimal.) 3. Obtain sonic lead shot. Carefully pour the shot into the cylinder so that the water level rises between 3 to \( 4 \mathrm{~mL} \) Record the exact volume occupied by both the water and the lead. (Estrmate the last number, to report a reading with thoo digits after the decimat point.) 4. Weigh the graduated cylinder, with the water and the lead in it, on a Cent-o-gram bahance. Record the weight as accurately as possible. (Estimate the last number, three digits after the decimal.) 5. Calculate the volume occupied by the lead. 6. Calculate the weight of the lead. 7 Calculate the density of the lead. Report the density to two digits after the decimal. - Enter measured and calculated values in the table below. - Be sure that proper units are recorded for each value. - When you record data, be sure the last digit recorded is an estimated number. TABLEI Sample: lead shot \( \begin{array}{ll}\text { Sample: lead shot } & \text { Room temperature } 24{ }^{\circ} \mathrm{C} \\ \text { Weight of cylinder + water } & \\ \text { Weight of cylinder + water + lead } & \\ \text { Weight of lead" } & \\ \text { Volume of water } \\ \text { Volume of water + lead } & \\ \text { Volume of lead" } \\ \text { Density of lead" }\end{array} \) Calculations "Show calculations for the weight of the lead, the volume of the lead, and the density of the lead. Conclusions According to the data in this experiment: Your density of the metal cylinder was determined to be: Your density of the lead shot was determined to be: \( \mathrm{g} / \mathrm{mL} \) \( -\mathrm{g} / \mathrm{mL} \)