How do u graph (1.5,-2) on the coordinate grid

Step-by-step explanation:

As per the statement:

In chemistry,

n molecules of an ideal gas have pressure (P),

volume (V), and temperature (T) that stand in the following relation.

Given the equation:

           ......[1]             where R is a constant.

Solve for n;

Divide both sides by RT in [1] we have;

Simplify:

or

Therefore, the number of molecules, is: