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Calculate the concentration of potassium ions in the solution, in mol L^-1.Each 200 mL...
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High School Teacher
You have 0.30 g of KCl in 200 mL, so you have 5 times as much in one liter.
0.3 * 5 = 1.5 g/liter.
To determine # of moles, divide actual mass by formula mass of KCl.
formula mass of KCl = atomic mass of K + atomic mass of Cl.
You now know the # of moles of KCl in solution. The # of moles of K ion and the number of moles of Cl ion is the same as the number of moles of KCl.
Posted by ndnordic on January 20, 2012 at 12:05 PM (Answer #1)
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