Editing Precipitation Lab
ChemistryWiki
|
RecentChanges
|
Preferences
Double Replacement reaction where solids are formed are called Precipitation Reactions. These reactions are often used to determine if a specific ion (either cation or anion) are present in a solution of an unknown substance. <br> <br> The objective of this lab is to produce precipitate from two known solutions. From these reactions, you can determine which cations combining with anions to form a solid product (precipitate).<br> <u>Procedures</u><br> 1. You will be given 2 sets of 3 solutions.<br> 2. Using a well plate (see below), one set with be the rows and the other set will be the columns. (3X3 grid)<br> 3. Add about 1/4 of the well with one solution (from row) and then add 1/4 of the well with the solution (from the column).<br> 4. Make observation of both solution before reaction and if a precipitate formed and what it looked like.<br> 5. Go to the next reaction. <br> <br> <u>Calculation</u><br> 1. Give the balanced chemical reactions (including phases) and then a net ionic reaction.<br> 2. If the reaction does not occur, give the potential product including phase and complete a net ionic reaction (to prove no reaction).<br> <br> [[Questions for Precipitate Reaction Lab]] <br> http://www.tmcleod.org/Level1/Chem328ChemicalReaction/Wellplate.jpg <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <table bgcolor=beige border=3> <tr> <th colspan=8 align=center>Precipitation Lab Matrix</th> <tr> <tr> <th><u>Solution</u></th> <th><u>1</u></th> <th><u>2</u></th> <th><u>3</u></th> <tr> <tr> <th>A</th> <th>____</th> <th>____</th> <th>____</th> <tr> <tr> <th>B</th> <th>____</th> <th>____</th> <th>____</th> <tr> <tr> <th>C</th> <th>____</th> <th>____</th> <th>____</th> <tr> </table> <tr> Notes:<br> Solution A : Silver nitrate<br> Solution B : Potassium sulfate<br> Solution C : Potassium carbonate<br> Solution 1 : Lead (II) nitrate<br> Solution 2 : Calcium chloride<br> Solution 3 : Barium acetate<br>
View other revisions
ChemistryWiki
|
RecentChanges
|
Preferences