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April 19, 2015

Homework Help: chemistry

Posted by David on Monday, November 2, 2009 at 9:42pm.

Q1) 5 liters of Butane gas (C4H10) is reacted with plenty of oxygen at 27 oC and 1 atm to produce carbon dioxide and water vapor. Calculate the following:
1- The volume of CO2 produced at 1 atm and 400 oC.
2- The mass of H2O vapor produced.
3- The mol % of the products.
Given:
C4H10 + O2 = CO2 + H2O (Unbalanced equation)

Q2) 10 M of hydrochloric acid (HCl) is reacted with zinc. If 2 liters of HCl is reacted with the stoichiometric amount of Zn. Calculate the mass of zinc required and the volume of hydrogen evolved during this reaction if it was measured at 1 atm and 27 oC. What is the mass of zinc chloride produced?
Zn + HCl = ZnCl2 + H2 (g) (Unbalanced equation)

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