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Chemistry, 24.12.2019 20:31 eliseeimbody
Astudent is asked to determine the molarity of a strong base by titrating it with 0.250 m solution of h2so4.
the students is instructed to pipet a 20.0 ml portion of the strong base solution into a conical flask, to add two drops of an indicator that changes at ph = 7, and to dispense the standard h2so4 solution from a buret until the solution undergoes a permanent color change.
the initial buret reading is 5.00 ml and the final reading is 30.00 ml at the equivalence point.
which procedural error will result in a strong base molarity that is too high?
using 4 drops of indicator rather than the recommended 2 drops
using a buret with a tip filled with air rather than the h2so4 solution
using an indicator that changes at ph = 5 rather than at ph = 7
using a conical flask that contains several drops of h2o
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Astudent is asked to determine the molarity of a strong base by titrating it with 0.250 m solution o...
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