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Posted by on Monday, March 29, 2010 at 2:26pm.

4. Write the balanced equation for CH4+Cl2„_CH2Cl2+HCl6. For the reaction in problem 4, Heat of Reaction = -118.3 kcal/mol. Identify whether this is an exothermic or endothermic reaction. Calculate the Heat of Reaction when 6.00 g of Cl2 are used in the reaction.

  • College Chem - , Monday, March 29, 2010 at 5:36pm

    CH4+ 2Cl2 --> CH2Cl2 + 2HCl + heat

    The - sign for delta H tells you it is an exothermic reaction. Delta H is -118.3 kcal/mol which tell you that 137.8g(4 x35.45) of Cl2 gives 118.3 kcal. So how much will 6 g give you?

  • College Chem - , Tuesday, March 30, 2010 at 9:32am

    10kcal?

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