ebiondillo7893 ebiondillo7893

13-10-2017
Chemistry

contestada

What is the mass of 5.40×1021 platinum atoms?

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Kalahira Kalahira

23-10-2017

Moles = 4.81 x 10^21 / 6.02 x 10^23 =0.00799 Mass = 0.00897009966 mol x 195.08 g/mol = 1.74988704 grams = ~ 1.75 grams

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