Question

An empty container with an unknown volume is weighed and found to have a mass of 95.2 g. The container is then filled with a liquid with a density of 1.005 g/cm3 and reweighed. The mass of the container and the liquid is 168.4 g. Determine the volume of the container to the appropriate number of significant figures.

Answer 1

step 1) Mass of the container + liquid = 168.4g
Mass of the container only = 95.2

Therefore, mass of liquid by itself = 168.4g - 95.2g (for subtraction - sig figs are determined by the least # of decimal places. in this case, since both numbers have 1 decimal place, your liquid mass should also have 1 decimal place)

step 2) Density of the liquid = mass/volume = 1.005 g/cm3

set mass as the mass from step 2 and solve for the volume. since this is a division/multiplication step, determine your sig fig based on the number w/ the least # of significant figures.

Answer 2

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