How many grams of hydrogen gas will be liberated when 6g of magnesium ribbon dissolves in 500cm³ of 6M HCl?


(Mg=24, H=1, Cl=35.5)

• A.1.2 g
• B.0.7 g
• C.0.5 g
• D.0.3 g
• E.0.12 g