Editing Mole Concept - Counting/Numbers
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The Mole Concept allows chemist to be able to keep track of base units (basic particles) that are have such a small mass and a significant number of them that you can not count or mass them individually. So, instead we group them into large number sets, specifically 6.02E23 number sets or more commonly called a mole. So, the counting/number relationship (conversion factor) is<br> <br> 6.02E23 atom = 1.0 moles of the atom<Br> <br> So, this is the relationship that we will use to go from Mole -> numbers (base units) or numbers (base units) --> moles<br> <br> The method of calculating these problems are same as any other problem you have done to date in the chemistry class, either Dimensional Analysis (DA) or by Equation.<br> <Br> Since we have several base units, we create a general name, called particle so we can create one <nowiki>conversion factor/Equation</nowiki> and have a reference table to make it specific for each type of substance.<br> <br> The conversion factor is:<br> <u> 6.02E23 particle</u><br> 1mole <br> or by Equation<br> <u>#particle</u> = #mole<br> <u>6.023E23 particle</u><br> 1mole <br> where when you know the substance you are dealing with, you replace the word "particle" with the appropriate base unit name from the table below.<br> Example, if you are dealing with a MC (molecular compound), you will replace particle with molecules<br> <table bgcolor=beige border=5 bordercolor=black> <tr> <th colspan=8 align=center><h2>Particle Name Table</h2></th> <tr> <tr> <th>Substance</th> <th>Particle Name</th> </tr> <tr> <th>Element</th> <th>atom</th> </tr> <tr> <th>MC</th> <th> molecule</th> </tr> <tr> <th>IC</th> <th>Formula unit</th> </tr> <th> </table> *MC - Molecular compound, IC - Ionic compound<br> <br> <br> <br> *[http://tmcleod.org/Level1/ExampleOneStepNumberMoleProblem.pdf Example of Actual Calculations of One Step Mole Problem Number], this will provide an example of the work needed for these problems (also will provide a better view of the Mole Counting/number Equation.<br> *[[Example of One Step Mole Problems - Numbers]] (this is a blank copy of the example problem just in case you want to do the math yourself.<br> *This is the homework for this section. Answer to the homework are on the bottom of this webpage, [[One Step Mole Problems for Elements - Numbers]].<br> <br> <br>
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