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 reactions to form a colored compound from the ion. The following data were collected. Nitrite Ion concentration (M) Absorbance of solution at 550 nm
2.00 x10^-6 M 0.065
6.00 x10^-6 M 0.205
10.00 x10^-6 0.338
14.00 x10^-6 0.474
18.00 x10^-6 0.598
Unknown 0.402

Required:
a. Construct a calibration plot, and determine the slope and intercept.
b. What is the nitrite ion concentration in the unknown solution?

Follows are the solution to the given points:

Explanation:

In point a:

Just the y-axis graph intensity as well as the "y" absorption. Find a path or intercept utilizing Excel or simple math.

In point b:

There are two different ways:

Graphically = Then add the unknown absorbance.

Its intensity of the unknown, if they consider the y axis to pull the straight line to the line marked but instead drop it off on the x-axis.

= resolve,  from of the line even for the x variable and also get on 

Plug and the un-concentration is also in place

mechanics (greek   is that area of science concerned with the behaviour of physical bodies when subjected to forces or displacements, and the subsequent effects of the bodies on their environment. the scientific discipline has its origins in ancient greece with the writings of aristotle and archimedes[1][2][3] (see history of classical mechanics and timeline of classical mechanics). during the early modern period, scientists such as galileo, kepler, and newton laid the foundation for what is now known as classical mechanics. it is a branch of classical physics that deals with particles that are either at rest or are moving with velocities significantly less than the speed of light. it can also be defined as a branch of science which deals with the motion of and forces on objects. the field is yet less widely understood in terms of quantum theory.

explanation: