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Chemistry, 22.06.2019 04:00
Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?
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Chemistry, 22.06.2019 14:00
What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?
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How many grams of O2 are in a 8.3x10^21 molecules sample?
(Two significant figures in your answer...
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