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(a) If the average molecular mass of compounds in food is 50.0 g, how many molecules are there in 1.00 kg of food?

(b) How many ion pairs are created in 1.00 kg of food, if it is exposed to 1000 Sv and it takes 32.0 eV to create an ion pair?

(d) If these ion pairs recombine into a distribution of 2000 new compounds, how many parts per billion is each?

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