Sunday 29 January 2012

mOle to mole conversions

What is a Mole Ratio?  A mole ration is a ration between the amounts in moles of any two compounds found in a chemical reaction. Mole ratios are used as conversion factors between products and reactants in many chemistry problems.






Key things to remember when doing Mole to Mole conversions:
1. Write the chemical equation
2. Balance the chemical equation
3. Understand what the question is asking
4. Now place what you need over what you have. It may not be easy to grasp so here's an example..

If 0.15 mol of methane are consumed in a combustion reaction. How many moles of CO2 are produced?
CH4 + 02 ---> CO2 + H2O

(If you forgot..refer to the steps, for solving mole to mole conversions)


the answer is....
CH4  + 202---> CO2 + 2H2O



Want more problems??

How many moles of bauxite (Aluminum oxide) are required to produce 1.8 mol of pure Aluminum?


Al2O3 ----> Al + O2           




Answer:
2AlO3------> 4Al+3O2






When 1.5 mol of Copper react with Fe (II) chloride. How many moles of Iron should be produced?
2Cu + FeCl2------> 2CuCl+Fe


Answer: 
nothing is changed

Mole to Mole conversions


What is a Mole Ratio?  A mole ration is a ration between the amounts in moles of any two compounds found in a chemical reaction. Mole ratios are used as conversion factors betweenproducts and reactants in many chemistry problems.




Key things to remember when doing Mole to Mole conversions:
1. Write the chemical equation
2. Balance the chemical equation
3. Understand what the question is asking
4. Now place what you need over what you have. It may not be easy to grasp so here's an example..

If 0.15 mol of methane are consumed in a combustion reaction. How many moles of CO2 are produced?
CH4 + 02 ---> CO2 + H2O

(If you forgot..refer to the steps, for solving mole to mole conversions)


the answer is....
CH4  + 202---> CO2 + 2H2O