wolfep97ovbk2b wolfep97ovbk2b
  • 08-10-2018
  • Chemistry
contestada

how many grams of oxygen is needed to completelt react with of 9.30 of aluminum

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ilzinhootigee ilzinhootigee
  • 08-10-2018

Hey there!

Given the reaction:

4 AI + 3O2 ------>  2 AI2O3

4 moles Al --------- 3 moles O2

9.30 moles Al  --------- ?? moles  O2

9.30 * 3 / 4  =>  6.975 moles of O2

Molar mass O2 => 32.0 g

Therefore:

6.975 * 32.0 =>  223.3 g of Oxygen

Hope that helps!

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