In the spring of 1984, concern arose over the presence of ethylene dibromide, or EDB, in grains and cereals. EDB has the molecular formulaC2 H4 Br2 and until 1984 was commonly used as a plant fumigant. The federal limit for EDB in finished cereal products is 30.0 parts per billion (ppb), where 1.0 ppb=1.0 x 109 g of EDB for every 1.0 g of sample. How many molecules of EDB are in 1.0 lb of flour if 30.0 ppb of EDB is present?

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Asked Sep 18, 2019
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In the spring of 1984, concern arose over the presence of ethylene dibromide, or EDB, in grains and cereals. EDB has the molecular formula

C2 H4 Br2 and until 1984 was commonly used as a plant fumigant. The federal limit for EDB in finished cereal products is 30.0 parts per billion (ppb), where 1.0 ppb=1.0 x 109 g of EDB for every 1.0 g of sample. How many molecules of EDB are in 1.0 lb of flour if 30.0 ppb of EDB is present?

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The mass and moles of EDB in one...

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1]hx 453.59 g, 1lb 30g 1.0 x10 36x1013g Molar mass EDB= 187.86 g / mol 1.36x10g7.24x101°mol 13, Moles of EDB 187.86 g/mol

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