Chapter 1, Problem 1.130E

An unknown object is placed on a balance, which then reads 6.122 g. Its volume is measured to be 3.39 cm³. Find the density of this object by dividing mass by volume. Express your answer in grams per cubic centimeter to the appropriate number of significant figures. g/cm³

A graduated cylinder was filled with water to the 12.7 mL mark and weighed on a balance. Its mass was 31.69 g. An object made of silver was placed in the cylinder and completely submerged in the water. The water level rose to 15.1 mL. When reweighed, the cylinder, water, and silver object had a total mass of 56.89 g. Calculate the density of silver in g/cm3. Express your answer to two significant figures. i ! g/cm3 eTextbook and Media Hint Assistance Used Save for Later Last saved 1 hour ago. Attempts: 5 of 15 used Submit Answer Saved work will be auto-submitted on the due date. Auto- submission can take up to 10 minutes. 回TA S SEP 19 MacBook Air DII DD 吕0 888 F6 E7 F8 F9 F10 F4 F5 F2 F3 F1 ! @ $ % 2 3 4 6. 7 8

When adding or dividing measured numbers, we don’t count significant figures. Instead, we look at the precision of the measured numbers. The answer can only be as precise as the least precise measurement.