Part (e) Sometimes the units in chemistry or biology look a little different from those in physics. In chemistry, sometimes F (measured in Coulombs per mole) is used instead of e (the charge un a single electron). A is used instead of kj, and the Coulomb constant is often written as the equation where , is called "the permittivity of free space" (never mind why). To get some practice checking units in this framework, check whether the following formula for the Debye length, lambda, can possibly be correct. KE RT 2FI In this formula, K is the gas constant, I the temperature, and x (the dielectric constant) is dimensionless. The ionic strength, f, is the product of the concentrations of the lons in solution weighted by the number of charges (NOT the charge) on each kind of inn: (Hint: It is easier to check dimensions than units.) No Part (f) If you said the formula given in part (e) was incorrect, can you suggest a modification that would have the correct dimensions? If you said the formula was correct, just note that the formula was correct