| Term | Definition |
|---|
| 1st step of stoichiometry | 1) Balance equation |
| 2nd step of stoichiomety | 2) Convert units given to moles |
| 3rd step of stoichiometry | 3) multiply by (coefficient of needed / coefficient of given) |
| 4th step of stoichiometry | 4) Convert to needed units |
| Molarity | Unit used to describe how much of a solute is in a solution. Found by dividing moles of solute by liters of solution |
| Liters of solution | Unit based off of molarity that tells how much solution you have if you are given a specific molarity and moles of solute. Determined by dividing moles of solute by molarity |
| Percent Yield | Percent that tell you how off your reaction (compares how much of a product you produced to amount you should have gotten. Calclated by (amount you got / amount you shoulda got) x 100 |
| Limited Reaction/Reagent | Use when you are given a reaction and the amount of both of your reactants. One reactant will run out (limiting reactant) and therefor stop the reaction. You are finding out when the limited reactant runs out and how much of the other reactat (excess) will be left. You can also determine how much of your product you will have |
| 1st step of Limited Reactant | Convert amount given of both reactants to moles |
| 2nd step of Limited Reactant | Divide each # of moles by coefficient (To get # of rxns.) |
| 3rd step of Limited Reaction | Divide each '# of rxns' by the least '# of rxns' to get Used/produced |
| 4th step of Limited Reaction | For the excess reactant find how much excess you actually have by subtracting the U/P # from the initial # of moles you were given |
| Limited Reaction- determine how much product is produced | 1) Multiply the coefficient of the product by the lowest' # of rxns' # (moles). 2) Convert to units needed |
| REMEBER SIG FIGS | 1) When x or / have answer be in sig figs of the lowest number of sig figs of any previos number . 2) When + or - count to lowest number of placeholders (#'s after the decimal). Remember: Leading zeros NEVER significant, traling zeros are ONLY significant if there is a decimal, captive zeros are ALWAYS significant |
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