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Chemistry help neutralizing

Chemistry
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A. A beaker contains 400. mL of 0.160 M HNO3. What volume of 0.295 M KOH solution is needed to exactly neutralize the acid

B.A beaker contains 35.0 mL of 0.200 M HCl solution. A few drops of phenolphthalein is added to the solution, How many milliliters of 0.700 M NaOH should be added to exactly neutralize the HCl solution in the beaker?

Apr 27th, 2015

A) M1V1 = M2V2 

    400 x 0.160 = 0.295 x V(KOH) 

       64 = 0.295 x V(KOH) 

V(KOH) = 216.94 mL

B)    M1V1= M2V2 

          35.0 x 0.20 = 0.7 x V(HCl)

                 7 = 0.7 x V(HCl)

               V(HCl)= 7/0.7= 10 mL  

Apr 27th, 2015

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