1.Calculate the density of a metal sample with a mass of 51.4 g and a volume of

Question

1.Calculate the density of a metal sample with a mass of 51.4 g and a volume of 14.7 mL. Be sure to include units and write an answer to one decimal place.

2.What will be the average density for a sample of metal with a mass of 12.6 g and volume calculations of 5 mL and 5.8 cm3 ? Omit units in the answer and report answer to one decimal place

. 3.What is the mass of a metal sample with a volume of 4 mL and a density of 4.5 g/mL? Include units and one decimal place in answer.

4.The density of a metal will vary depending on the size of the sample. True or False

Explanation / Answer

1.

density = mass / volume

= 51.4 g/14.7 mL = 3.5 g/mL upto one decimcal place

2.

similary as above

for 5 mL sample

density = 12.6 g / 5mL = 2.52 g/mL without units upto one decimcal place = 2.5

for 5.8 cm3

1 cm3 = 1 mL

density = 12.6 g / 5.8 cm3 = 2.17 g/cm3 , upto one decimcal place without units = 2.2 ( approximating .17 to .2)

3.

we already have:

density = mass / volume

mass = density x volume = 4.5g/mL x 4 mL = 18.0 g

4.

False , density does not depends upon size ,albeit it is ratio of mass to volume

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