chemistry

Polycarbonate plastic has a density of 12 g/cm3. A photo frame is contructed feom two 3 I n sheets of polycarbonate. Each sheet measures 28 cm by 22 cm. What is the mass of the photo frame

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asked by Monica
  1. What 3 l n sheets? Is that the thickness.If that is 3" (inch) thickness, convert to cm (2.54 cm to the inch).

    volume = length x width x thickness
    Then mass = volume x density. Substitute and solve for mass.

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    posted by DrBob222

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