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5 Percent Rule

Posted: Tue Feb 11, 2020 5:57 pm
by Labiba Sardar 2A
When you're doing the 5 percent rule, are you checking to see if the x value that you solved for is 5% of the initial concentration of your reactant? What if there's multiple reactants with initial concentrations?

Re: 5 Percent Rule

Posted: Tue Feb 11, 2020 6:00 pm
by jisulee1C
Yes, you use the five percent rule to check if the product concentration formed is less than five percent of the initial concentration which allows you to use the approximation. Use the reactant with the smallest concentration given. If it passes the five percent rule for the smaller concentration then that means it will most definitely pass the five percent rule for the other reactants and their concentrations.