# Density Exam Review. If you placed a 15 cm 3 sized object into 20 mL of water, how much water will be displaced? 15 mL of water.

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Density Exam Review

If you placed a 15 cm 3 sized object into 20 mL of water, how much water will be displaced? 15 mL of water

A cube of clay has a density of 1.20 g/cm 3, if a 25 gram cube of clay was cut in half, what would be the density of each of the pieces? 1.20 g/cm 3 = Density DN change!!

If you see the SI units of grams, what parameter does this represent? MASS

If you see the SI units of mL, what parameter does this represent? Volume of a Liquid

If you see the SI units of cm 3, what parameter does this represent? Volume of a Solid

If you see the SI units of g/cm 3, what parameter does this represent? Density of a Solid If you see the SI units of g/mL, what parameter does this represent? Density of a Liquid

Maple Wood (D = 0.669 g/cm 3 ) Granite (D = 2.163 g/cm 3 ) Tungsten (D = 18.80 g/cm 3 ) All three were thrown into water, which would float? Maple Wood Which would sink? Granite & Tungsten

Your swan ice sculpture is approximately 250 cm 3 in size. If the density of ice is 0.9167 g/cm 3 then what is it’s mass? M = Dv = (0.9167 g/cm 3 )(250 cm 3 ) = 229.18 g

A piece of copper was found to have a mass of 117 g - what is it’s volume? D = 8.96 g/cm 3 V = m/D = 117 g / 8.96 g/cm 3 = 13.06 cm 3

A object has a mass of 25.00 g and a volume of 10 cm 3 - what is the object made out of? D = m/v = 25 g / 10 cm 3 = 2.5 g/cm 3 = GLASS

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