rabbird2000
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 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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