Stoichiometry word problems

timer Asked: Mar 16th, 2015

Question description

A chemist wants to know how much fluoride is in his toothpaste.  he filters the toothpaste to remove all solids and reacts the water solution, containing all fluoride ions, with Mn2+. The partial reaction is 

F-  + Mn2+ =

a) Complete the equation and balance it>

b) If he obtains 2.0 x 10^-3 grams of product, how many grams of F- was in the toothpaste sample?

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