Answer to Question #170391 in General Chemistry for jack

Question #170391

What is the mass in grams of H2 gas produced when 4 moles of HCl is added to an excess of magnesium?

1
Expert's answer
2021-03-10T06:53:48-0500

2HCl+Mg --> MgCl2+H2;

m(H2)= n(HCl)*Mr(H2)/2= 4*2/2=4 g;

Answer: 4 grams of H2 are produced


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