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“The Density Equation”

“The Density Equation”. D= m 1 V. Density (g/ mL or g/cm 3 ). Mass (g). Volume (mL or cm 3 ). Liquid - graduated cylinder Read at the meniscus. Irregular Solid - displacement. Measuring Volume. Regular Solid - L x W x H = cm 3. Let’s Practice….

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“The Density Equation”

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  1. “The Density Equation” D= m 1 V Density (g/mL or g/cm3) Mass (g) Volume (mL or cm3)

  2. Liquid-graduated cylinder • Read at the meniscus Irregular Solid -displacement Measuring Volume Regular Solid -L x W x H = cm3

  3. Let’s Practice… If the mass of an object is 6 grams and the volume is 3 mL, what is the density of the object? Step 1 Step 2 Step 3 Step 4 6g m = V = D = D = 2 g/mL D = m 1 V D = 6g 3mL 3mL ?

  4. Let’s Practice… If the density of an object is 2 g/mL and the volume is 4 mL, what is the mass of the object? Step 1 Step 2 Step 3 Step 4 ? m = V = D = m = 8 g/mL 4mL 2 g/mL

  5. Let’s Practice… If the density of an object is 5 g/mL and the mass is 15 g, what is the volume of the object? Step 1 Step 2 Step 3 Step 4 15g m = V = D = V = 1 mL ? 15 g/mL

  6. Warmup # ___ Calculating Density • If the mass of an object is 20 g and the volume of the object is 50 cm3, what is the density? Will it sink or float in H2O? • If the mass of an object is 12 g and the dimensions are 2cm x 2cm x 3cm, what is the density of the object? • What is the mass of an object with a volume of 2 cm3 and a density of 6 g/cm3? • What is the volume of a object with a mass of 24 g and a density of 8 g/mL?

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