Problem: Directions: You must solve each of the following problems using dimensional analysis. EVERY number in you work should be followed by a unit and a formula. 1. For this reaction: ___ Al + ____O2 → _____ Al2O3a. How many moles of aluminum oxide will be formed from 17 moles of aluminum reacting? b. How many moles of oxygen are needed to react with 23.8 moles of aluminum? 

FREE Expert Solution

We're given the following reaction:

___ Al + ____O2 → _____ Al2O3


Recall that when balancing chemical equations, we have to make sure that the number of elements on both sides is equal with the lowest whole number coefficients.


Reaction 1:

___ Al + ___O2 → ___ Al2O3

Al      1

O      2

C      2

O      3


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Problem Details

Directions: You must solve each of the following problems using dimensional analysis. EVERY number in you work should be followed by a unit and a formula. 

1. For this reaction: ___ Al + ____O2 → _____ Al2O3

a. How many moles of aluminum oxide will be formed from 17 moles of aluminum reacting? 

b. How many moles of oxygen are needed to react with 23.8 moles of aluminum? 


Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Stoichiometry concept. You can view video lessons to learn Stoichiometry. Or if you need more Stoichiometry practice, you can also practice Stoichiometry practice problems.