Aluminium reacts with sulfuric acid to form aluminium sulfate and hydrogen. What is the volume of hydrogen gas in liters ( L ) produced at 300   K and 1 . 0 atm pressure, when 5 . 4   g of aluminium and 50 . 0   mL of 5 . 0   M sulfuric a

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Aluminium reacts with sulfuric acid to form aluminium sulfate and hydrogen. What is the volume of hydrogen gas in liters ( L )  produced at  300 &#160; K and 1 . 0 atm pressure, when  5 . 4 &#160; g of aluminium and  50 . 0 &#160; mL  of  5 . 0 &#160; M  sulfuric acid are combined for the reaction? (Use molar mass of aluminium as  27 . 0 &#160; g &#160; mol - 1 ,  R = 0 . 082 &#160; atm &#160; L &#160; mol - 1 K - 1 )

Quantrex Academy · Accepted Answer

Correct answer: A. A

2 AI + &#160; 3 H 2 SO 4 &#10230; AI 2 SO 4 3 + 3 H 2 5 . 7 27   50 &#215; 5 1000 = 0 . 2 &#160; mole   = 0 .25 &#8201; mole ( Limiting &#8201; reagent ) &#8756;   0 .25 &#8201; mole &#8201;H 2 is formed PV = nRT V = nRT P = 0 . 25 &#215; 0 . 082 &#215; 300 1 &#160; atm = 6 . 15  litre

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