Asked by Toffy
a student needed to standardize a solution of barium hydroxide.he prepared a standard solution with 0.200M of potassium hydrogen phlelete acid KHC8H4O4.this titration indicated equivalence of 27.80cm3 of Ba(OH)2 solution. what's the molar concentration of the base?
Answers
Answered by
DrBob222
potassium hydrogen phthalate, KHP
2KHP + Ba(OH)2 ==> BaP + 2H2O
How much of 0.200 M KHP did the student use?
mol KHP = 0.200 M x L of KHP used.
mols Ba(OH)2 from the coefficient = 1/2 mols KHP from above.
Then M Ba(OH)2 = mols Ba(OH)2/0.02780 = ?
2KHP + Ba(OH)2 ==> BaP + 2H2O
How much of 0.200 M KHP did the student use?
mol KHP = 0.200 M x L of KHP used.
mols Ba(OH)2 from the coefficient = 1/2 mols KHP from above.
Then M Ba(OH)2 = mols Ba(OH)2/0.02780 = ?
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