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Stoichiometry and Molarity for a metal and acid

Submitted by TIAA on Sat, 10/20/2012 - 18:07

If you were to combine 120.0 mL of .100 M HCL with 3.25 grams of calcium metal, how many grams of hydrogen gas would you make?


 i think the reaction should look similar to this one

 

Sr(s) + 2HCl(aq) → Sr2+(aq) + 2Cl-(aq) + H2(g)

here you can replace the Sr with Cl , and then from the balanced eqaution you can grab the info that  2 mole of HCl producing  1 mole of H2 , so  find moles of HCl by the given molarity and volume make sure you convert volume to liters now find the moles of Cl using its molar mass 

now it is a limiting reactant problem, follow the tutorial to solve further to get your answer

http://www.mychemistrytutor.com/tutorials/limiting-reactant-procedure