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The molecular formula for caffeine is cshion402. which of the following elements is not found in caffeine?
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The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false
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Calculate the ph at the equivalence point for the titration of a solution containing 150.0 mg of ethylamine (c2h5nh2) with 0.1000 m hcl solution. the volume of the solution at the equivalence point is 250.0 ml. kb forethylamine is 4.7 × 10−4 .
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