Is 100mL Equal to 100g? Understanding Volume vs. Weight Conversion

Learn why 100mL and 100g are not always the same and how substance density affects volume-to-weight conversions.

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No, 100mL and 100g are not necessarily the same. The equivalency between milliliters (mL) and grams (g) depends on the density of the substance. For water, 100mL equals 100g because its density is 1g/mL. However, for substances with a density either greater or less than 1g/mL, the equivalence does not hold. It's crucial to consider the specific density of the substance when converting between these units.

FAQs & Answers

  1. Why are 100mL and 100g not always equal? Because the equivalence depends on the substance's density; only for substances with a density of 1g/mL, like water, do 100mL and 100g equal each other.
  2. How do I convert milliliters to grams correctly? To convert milliliters to grams, multiply the volume by the substance's density in grams per milliliter (g/mL).
  3. What substances have a density of 1g/mL? Pure water at standard temperature has a density of approximately 1g/mL, making volume and weight equal for it.