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Why is the density of water 1.0 g/cm3?

April 26, 2017Chemistry cm3 density Mathematics water

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Why is the density of water 1.0 g/cm3?

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This is because the original definition of one gram was the mass of 1cm³ of water at its temperature of maximum density (about 4°C). This definition was superceded in 1964 as the density of water is slightly dependent on the external pressure.