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Chemistry, 10.11.2019 17:31 Alexislol7908
How many oxygen atoms are in 3.00 grams of sodium dichromate, na2cr2o7?
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Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.
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