In: Chemistry
Sulfuric acid dissolves aluminum metal according to the following reaction: 2Al(s)+3H2SO4(aq)?Al2(SO4)3(aq)+3H2(g) Suppose you wanted to dissolve an aluminum block with a mass of 14.7g .
Part A
What minimum mass of H2SO4 would you need?
Express your answer in grams.
Part B
What mass of H2 gas would be produced by the complete reaction of the aluminum block?
Express your answer in grams.
2Al(s)+3H2SO4(aq)?Al2(SO4)3(aq)+3H2(g)
2x27g 3x 98g 3x2g
14.7g ? ?
a)
54g Al ----------------> 294g H2SO4
14.7g Al --------------------> ?
x = 294x14.7/54= 80.03
80.03g H2SO4 is needed
b)
54g Al --------------> 6g H2
14.7g-------------------?
x= 1.63g
1.63g H2 is produced