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1 Litre (liter) of water will always weigh 1 kg (this is at sealevel as weight is ruled by the earths gravitational pull (9.82 m/s2 in Europe) which changes as you get further away from the core i.e. Mexico City (aprox 9.80 m/s2)). So if 1L or 1000 ml weighs 1kg then 500 ml weighs 0.5 kg or 500 g.

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14y ago
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Q: How much kg is 500 ml water?
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