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What is the concentration of a HBr solution in 12.0 mL of the solution is neutralized by 15.0 mL of a 0.25 M KOH solution?
Wiki User
∙ 13y ago
Balanced equation.
KOH + HBr -> KBr + H2O
everything is one to one, so...
Molarity = moles of solute/liters of solution ( change ml to liters )
0.25 M KOH = moles KOH/0.015 liters
= 0.00375 moles of KOH
this is as many moles that you have of HBr, so...
Molarity of HBr = 0.00375 moles/0.012 liters
= a concentration of HBr that is 0.31 M
Wiki User
∙ 13y ago
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