A student measured the mass of a solid sample and recorded the mass on his data sheet as 20.587 grams. He recorded his initial volume as 7.9 mL and his final volume as 11.1 mL. Calculate the density of the sample.
My guess is that this is a problem to test your ability to report ONLY the right number of significant figures.
density = mass/volume.
Calculate the answer then round to two s.f.
To calculate the density of the sample, you need to use the formula:
Density = Mass / Volume
First, let's find the mass of the sample: 20.587 grams.
Next, let's calculate the volume of the sample by subtracting the initial volume from the final volume: 11.1 mL - 7.9 mL = 3.2 mL.
Now plug these values into the formula:
Density = 20.587 grams / 3.2 mL
Calculating this, the density of the sample is approximately 6.45 grams per milliliter (g/mL).