physics

posted by Anonymous

AN EMPTY DENSITY BOTTLE WEIGHS 25GRAMS. IT WEIGHS 65GRAMS WHEN FILL WITH WATER. CALCULATE THE DENSITY OF THE LIQUID.

  1. MathMate

    Please type your post in "proper case", i.e. use lower case except for the first letter of a paragraph, sentence, or proper nouns.
    In posts, we use all uppercase only when we mean to SHOUT at someone.

    "Density bottle" is also called a specific gravity bottle, or pycnometer, which has a known capacity.
    They come in different capacities. Common capacities are 2, 5, 10, 25, 50 ml.

    The question does not specify the capacity, so an assumption is required. Assuming a 25 ml. capacity, then
    net volume = 25 ml
    net mass = 65-25 g = 40 g
    Density = 40/25 g/ml = 1.6 g/ml
    Note that the calculated density might change when the real capacity of the bottle is known.

  2. Rithwik

    75 g - 30 g
    = 45
    Mass of water= 45 g

    65 g - 30 g
    = 35

    Mass of liquid x = 35

    Density = mass/volume
    = 35/45
    = 0.77 cm cube

  3. erustus

    yes

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