Finding SG from volume and weight

2. Density & Specific Gravity 2.1) Specific Gravity 2.1.1) SG - General SG from volume and weight Easy 1

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If 355.83 mL of an oil weighs 290 g, what is the specific gravity of the oil?

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lb equals 0.815 kg

    Answer: 0.815 (no unit).
    • We know that, Specific Gravity (SG) of a substance is the ratio of the weight of the substance and the weight of water that occupies the volume of the substance. In order to keep it simpler, we can just divide the numbers of 'weight in gram' by the 'volume in ml'.
    • We can write: SG of the substance = 290/355.83 = 0.815

    SG = Weight in grams → 290
    Volume in mL → 355.83
    Therefore, SG = 0.815;