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How was a kilogram originally defined?

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When the metric system was originally devised, the kilogram was defined so that 1,000 cubic centimeters (1 cubic decimeter) of pure water has a mass of exactly 1 kilogram.

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Similar questions: How many cubic centimeters of water originally defined a kilogram? A kilogram was originally defined as the mass of how many cubic centimeters of water? [ Hide these questions ]

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