Answer : The mass of needed are, 131.8 grams
Solution : Given,
Mass of Al = 15 g
Molar mass of Al = 27 g/mole
Molar mass of = 159.8 g/mole
First we have to calculate the moles of Al.
Now we have to calculate the moles of
The given balanced reaction will be,
From the balanced reaction, we conclude that
As, 2 moles of Al react with 3 moles of
So, 0.55 mole of Al react with of
Now we have to calculate the mass of
Therefore, the mass of needed are, 131.8 grams