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Density

Density. Physical Property. Density: mass divided by the volume of a substance. Density = mass / volume. ASS. M. OR. D. V. OLUME. Density of solids, liquids, and gases. Density Increase as you move from the gas to solid phases Gas Liquid Solid

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Density

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  1. Density Physical Property

  2. Density: mass divided by the volume of a substance • Density = mass / volume ASS M OR D V OLUME

  3. Density of solids, liquids, and gases Density Increase as you move from the gas to solid phases Gas Liquid Solid Density usually decreases as Temperature Increases

  4. SIZE does NOT Matter The Density of an object is the same regardless of size As long as it is made up of the same composition the density is always the same Block of Maple Density = .79 g/mL If I cut this block in half, what is the density? ? ?

  5. Units of Density Mass: grams (g ) Liquid: volume = milliliters (mL) Solid: Cubic meters (cm3) D = m/v Units : g/mL or g/ cm3

  6. How do I determine Volume for different objects? What do I use to determine the volume of a liquid? Graduated cylinder, beaker, flask What do I use to determine the volume of a solid? Ruler (metric) = l x w x h (cm x cm x cm = cm3) What do I do to determine the volume of an irregularly shaped object? Use a graduated cylinder Take the initial reading Place the object in the cylinder Take the final reading Final – Initial = Volume of object

  7. Using the Density Triangle How do you solve for Mass? M ∕ ∕ X D V • 2. How do you solve for Volume? M = D x V V = M / D • 3. How do you solve for Density? D = M / V

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