Use the following equation to answer the following questions: Al + H2SO4 ==> Al2

Question

Use the following equation to answer the following questions: Al + H2SO4 ==> Al2(SO4)3 + H2 A. If 4.89 moles of aluminum are reacted, how many moles of hydrogen will be produced? B. If 52.6 g of hydrogen sulfate is reacted, what mass of aluminum sulfate is produced? C. If 30.5 g of hydrogen sulfate is reacted, how many moles of aluminum is also reacted? D. What mass of aluminum is needed to produce 0.863 moles of hydrogen?

Explanation / Answer

balanced equation is 2Al + 3H2(SO4)--------->Al2(SO4)3 + 3H2 ,A)2 moles of Al gives 3 moles of H2 , 4.89 moles of Al gives 7.335moles of H2 B)2 moles(98*3) of H2SO4 gives 1 mole(342g) of Al2(SO4)3, hence 52.6g gives 45.21g , C)294g of H2SO4 requires 2 moles of Al,hence 30.5g requires 0.20748moles , D)54 g of Al produces 3 moles of H2 , hence 0.863moles requires 15.534g

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