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0.0000003 kilograms is about five times as as a Grain of Salt.
In other words, it's 5.13 times the of a Grain of Salt, and the of a Grain of Salt is 0.195 times that amount.
The mass of a grain of salt is approximately 0.0000000585 kilograms. Salt consumption varies widely by country; the people of the United States consume a combined total of about 2,730,000 kilograms of salt each year.
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