2Al + 3H2SO4→Al2(SO4)3 + 3H2
mols Al = grams/atomic mass Al.
Using the coefficients in the balanced equation, convert mols Al to mols H2SO4. That will be mols Al x 3/2 = mols H2SO4.
Now convert mols H2SO4 to grams. grams = mols x molar mass = ?
2.
mols Al from above.
Convert mols Al to mols H2 gas as above.
Convert mols H2 to grams as above.
Sulfuric acid can dissolve 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 26.8 g .
1.What minimum amount of H2SO4 in grams would you need?
2.How many grams of H2 gas would be produced by the complete reaction of the aluminum block?
1 answer
1 answer