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Given 73.7200 g of caffeine and the following atomic weights, how many mmoles (millimoles) of caffeine...

Given 73.7200 g of caffeine and the following atomic weights, how many mmoles (millimoles) of caffeine do you have? Remember that a mmoles is 1/1000 of a mole. Round to a whole number answer with no decimal or units.

C = 12, H = 1, N =14, O = 16

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Assuming that the manufacturer claimed that your tea had 26 mg of caffeine per gram, that you weighted out 15.2090 g of tea, but you isolated only 27.7 mg of caffeine after sublimation. What is the percent recovery? Round to a whole number answer without any decimal point or units.

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kindly post different questions separately. please rate

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