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24-03-2016
Chemistry

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How many grams of water are produced when 2.50 mol oxygen reacts with hydrogen

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Respuesta :

27-03-2016

Given:

2.5 mol O2

Required:

Grams of water

Solution:

2H2 + O2 -> 2H2O

Moles of H2O = (2.5 mol O2)(2 moles H2O/1 mole O2) = 5 moles H2O

Molar mass of H2O = 18.02 g/mol

Mass of H2O = (5 moles H2O)( 18.02 g/mol)

Mass of H2O =90.1g H2O

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