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    Understanding and using the ideal gas law

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    Calculate the work done when 50 g of iron dissolves in hydrochloric acid in (a) a closed vessel and (b) an open beaker.

    Hint: Use the ideal gas law and equations to determine amount of work done when a gas expands.

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    Solution Preview

    Step 1: Write a balanced chemical equation to describe the reaction

    Fe (s) + 2HCl (aq) --> FeCl2 (aq) + H2 (g)

    From the above equation, we know that one mole of gas is generated for each mole of ...

    Solution Summary

    This solution provides a step by step explanation of how to use the ideal gas law to calculate the amount of work done as a result of a chemical reaction that generates gas.