Iwill give you 15 points
if 48.5 grams of aluminum metal (al) react with 62.8 grams of sulfur (s) in a synthesis reaction, how many grams of the excess reactant will be left over when the reaction is complete?

be sure to write out the balanced equation for this reaction and to show all of your work.

13.122 grams of Al will be left.

Explanation:

The balanced possible reaction between Al and S is:

Thus two moles of aluminium will react with three moles of sulfur

the moles of sulfur present =

Moles of Al present =

1.96 moles of sulfur will react with = moles of Al

The moles of Al left = The moles of excess reagent left = 1.796-1.31=0.486mol

the mass of Al left = moles X atomic mass =0.486X27=13.122 grams

the answer to this question is 3.