LESSON 21
MOLE TO MOLE CONVERSIONS- Coefficients in a balanced equation tell us the # of moles reacted or produced
- They can also be used as a conversion factor
3X + Y = 2Z (WHAT YOU NEED OVER WHAT YOU HAVE!!!)
eg. Carbon will react with cadmium oxide to produce carbon dioxide. How many moles of carbon dioxide will be produced if 0.69 mol of CdO is completely reacted?
C + 2CdO --> 2Cd + CO2
0.69 mol x 1 / 2 = 0.35 mol of CO2
eg. How many moles of indium oxide are required to produce 2.5 mol of indium (pure)?
2In2O3 --> 4In + 3O2
2.5 mol (4In) x 2 / 4 = 1.3 mol of indium oxide
2.5 mol (4In) x 2 / 4 = 1.3 mol of indium oxide
eg. Nitrogen can react with hydrogen to produce ammonia. How many moles of nitrogen will be needed to produce 0.54 mol of NH3?
N2 + 3H2 --> 2NH3
0.54 mol (2NH3) x 1 / 2 = 0.27 mol of nitrogen
0.54 mol (2NH3) x 1 / 2 = 0.27 mol of nitrogen
-sherilyn
posted by chemistry11 @ 7:44 PM
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