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Chemistry, 30.05.2020 16:57 dan20012001

Suppose you have a bucket of sand containing 7.5 billion grains of sand ( 7.5×109 grains). Most of the grains of sand are white, but there are some brown grains mixed evenly throughout. If the concentration of brown sand is 6.0% , how many grains of brown sand are in the bucket?

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