The nitrite ion is involved in the biochemical nitrogen cycle. You can determine the nitrite ion content of a sample using spectrophotometry by first using several organic compounds to form a colored compound from the ion. The following data were collected.

(a) Construct a calibration plot, and determine the slope and intercept.

(b) What is the nitrite ion concentration in the unknown solution?

Transcribed Image Text:

NO Ion Concentration 2.00 10-6 M 6.00 x 10-6 M 10.00 x 10-6 M 14.00 x 10-6 M 18.00 10-6 M Unknown solution Absorbance of Solution at 550 nm 0.065 0.205 0.338 0.474 0.598 0.402