Hello, I have a question that I'm not sure how to answer.
The reaction of iron (III) oxide with powdered aluminum is known as the thermite reaction.
2Al + Fe2O3 --> A2O3 + 2Fe
(a) Calculate the mass of aluminum oxide, Al2O3, that is produced when 1.42 x 1024 atoms of Al react with Fe2O3.
My first insticts were to set up the ratio.
2 : 1 : 1 :2
Now I'm not sure how I go about the next part. Which of the compounds am I finding the molar mass for?
Al2O3 has a molar mass of 102 g/mol.
Al has a molar mass of 27 g/mol.
Fe2O3 has a molar mass of 160 g/mol.
Al2O3 ** Must convert this to moles.
= 1.42 x 1024 atoms
Could someone help me through this problem?
Thanks,
Stefan