The drug Librium gives a polarographic wave with E 1 2 0 265 V (versus S C E ) in 0 05 M H 2 SO 4 A 50 0 mL sample containing Librium gave a wave height of 0 37 A When 2 00 mL of 3 00 mM Librium in 0 05 M H 2 SO 4 were added to the sample, the wave height increased to 0 80 A Find the molarity of Librium in the unknown

Question: The drug Librium gives a polarographic wave with E 1/2 = - 0.265 V (versus S.C.E.) in 0.05 M H 2 SO 4 . A

The drug Librium gives a polarographic wave with E_1/2 = - 0.265 V (versus S.C.E.) in 0.05 M H₂SO₄. A 50.0-mL sample containing Librium gave a wave height of 0.37 μA. When 2.00 mL of 3.00 mM Librium in 0.05 M H₂SO₄ were added to the sample, the wave height increased to 0.80 μA. Find the molarity of Librium in the unknown.

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