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How many oxygen atoms are in 1.30g of quartz?

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Pure quartz has a molecular compostion of SiO2. The mol weight of SiO2 is2 * 16 + 28 = 60 g/molmols of SiO2 = 1.30 / 60 = 0.0217 mol. Number of O2 atoms = 2 * 0.0217 * 6.022 x 10^27 = 2.61 x 10^26... Show More
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Pure quartz consist of SiO2. The molecular weight of SiO2 is actuallySi= 28O2= 32combined this gives you a total of 60 g/mol so you would then take 1.30g / 60 g/mol = .02167so since there are 2 Oxygen atoms then you multiply= .02167 x 2= .04333Then you take .04333 x 6.022 x10^23 = 2.61 x10^22... Show More
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1.30gSiO2 x [32gO / 60gSiO2] x [6.02E23atoms O / 16gO] =... Show More
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