Correction for the weight of a Grain of Salt
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How heavy is 0.000000000300 long tons?
It's about five times as heavy as a Grain of Salt
The weight of a Grain of Salt is about 0.00000000005760 long tons.
The mass of a grain of salt is approximately 0.00000000005760 long tons. Salt consumption varies widely by country; the people of the United States consume a combined total of about 56,100 long tons of salt each year.