Asked Mar 12, 2019

Iron reacts with excess aqueous hydrochloric acid to produce hydrogen.

(a) Write a balanced chemical equation for the reaction, using the smallest integer coefficients possible. Write states in brackets. (Hint: FeCl2 is the second product.)

(b) Calculate the mass of pure Fe that will furnish 13.1 L of hydrogen at a pressure of 0.702 atm and a temperature of 33.2°C.


Expert Answer

Step 1

a) Iron reacts with aqueous hydrochloric acid to form hydrogen gas and ferric chloride as the major product. The balanced chemical equation for the reaction is :

Step 2

b) The number of moles of hydrogen produced may be determined from the given conditions using the ideal gas equation as:

Step 3

From the stoichiometry of the balanced chemical equation in part (a), it is see...


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