rabbird2000 rabbird2000

25-01-2017
Chemistry

contestada

How many grams of chromium (Cr) are present in 4.20 moles of the metal?

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Tomathon101 Tomathon101

25-01-2017

420 eyyyyyyyy Only joking, the Mr of Cr ≈ 52 mass = molar mass*moles mass of Cr = 4.2* 52 = 218.4g If given 4.20, 3 significant figures is appropriate, so it would be 218g

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