General Chemistry 1 Midterm - Part 2 of 4
SAMPLE
Please be aware that you practice a sample exam set, which means that it’s mimicking a real exam. In order to have more accurate experience:
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2. Atoms & Elements / Mole Concept / Problem 2
Calculate the number of P atoms in 2.63 g of phosphorus pentabromide (PBr5)
Calculate the mass in grams of Br 3.28 x 1021 molecules of PBr5
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