The conversion of nitrogen to ammonia, an essential process in the nitrogen cycle, occurs only in the presence of an iron-molybdenum cofactor. The concentration of molybdenum in one such co-factor was determined by titration with an acidified permanganate solution. The titration reaction equation is 4H*(aq) + 3MnO (aq) + 5Mo³+ (aq) → 3Mn²+ (aq) + 5M002+ (aq) + 2H₂O(1) A 30 mL sample of Mo³(aq) required 21.8 mL of 0.10 mol/L permanganate solution to reach a light pink end point. From the titration data, the concentration of Mo³+ (aq) is determined to be Record your answer to 2 sig-digs; do not include units. mol/L.

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The conversion of nitrogen to ammonia, an essential process in the nitrogen cycle, occurs only in the
presence of an iron-molybdenum cofactor. The concentration of molybdenum in one such co-factor was
determined by titration with an acidified permanganate solution. The titration reaction equation is
4H* (aq) + 3MnO2 (aq) + 5Mo³+ (aq) → 3Mn²+ (aq) + 5M002+ (aq) + 2H₂O(1)
A 30 mL sample of Mo3+ (aq) required 21.8 mL of 0.10 mol/L permanganate solution to reach a light pink end
point.
From the titration data, the concentration of Mo3+ (aq) is determined to be
Record your answer to 2 sig-digs; do not include units.
mol/L.
Transcribed Image Text:formation to answer the next question. The conversion of nitrogen to ammonia, an essential process in the nitrogen cycle, occurs only in the presence of an iron-molybdenum cofactor. The concentration of molybdenum in one such co-factor was determined by titration with an acidified permanganate solution. The titration reaction equation is 4H* (aq) + 3MnO2 (aq) + 5Mo³+ (aq) → 3Mn²+ (aq) + 5M002+ (aq) + 2H₂O(1) A 30 mL sample of Mo3+ (aq) required 21.8 mL of 0.10 mol/L permanganate solution to reach a light pink end point. From the titration data, the concentration of Mo3+ (aq) is determined to be Record your answer to 2 sig-digs; do not include units. mol/L.
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