08-08-2016
Chemistry

contestada

The density of platinum is 21.45 g/cm3 at 20 ∘C. Calculate the mass of 78.00 cm3 of platinum at this temperature.

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Willchemistry Willchemistry

08-08-2016

D = 21.45 g/cm³

V = 78.00 cm³

D = m / V

21.45 = m / 78.00

m = 21.45 x 78.00

m = 1673.1 g

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