Question

The volume of a metal rod wasdetermined to be 38.6 mL. Itsmass was found to be 400.3grams when measured withplatform balance. Wouldmeasuring the mass on ananalyticalbalance improve the accuracyof the density determination?Justify your answer on the basisof significant digits.

Answer 1

If the mass was found to be 400.3 grams when measured with platform balance, measuring the mass on an analytical balance will improve the accuracy of the density determination because an analytical balance measure with a high degree of accuracy (will weigh to an accuracy of ± 0.1 mg and must be used whenever you desire four or more significant figure accuracy).