The following Absorbance vs concentration of nitrite graph is obtained for a set of data: Absorbance Vs Concentration Y=1.6628x+0.0373 R = 0.9893 18 1.6 14

The following Absorbance vs concentration of nitrite graph is obtained for a set of data:

Absorbance Vs Concentration Y=1.6628x+0.0373 R² = 0.9893

18

1.6

14

12

1

Absorbance

08

0.4

0.2

00

0

0.2

0.4 0.6

0.8

Concentration of nitrite (mg/L)

1

Determine the concentration of unknown solution for which the absorbance is determined as 0.69