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If 111.70 g of iron react with oxygen gas to produce iron (III) oxide, how many moles of oxygen gas will be needed?

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2 answers

  1. Here is a worked example.
    http://www.jiskha.com/science/chemistry/stoichiometry.html

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  2. determine the normality of 38g of HCI in 6.2 L of solution.
    my answer 0.17
    is that correct?

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