In Chapter, we show that quantitative molecular absorption spectrometry is based on Beer’s law, which can be written
−log T = εbcX
where T is the transmittance of a solution of an analyte X, b is the thickness of the absorbing solution, cX is the molar concentration of X, and e is an experimentally determined constant. By measuring a series of standard solutions of X, εb was found to have a value of 3312(±12) M−1, where the number in parentheses is the absolute standard deviation.
An unknown solution of × was measured in a cell identical to the one used to determine εb. The replicate results were T = 0.213, 0.216, 0.208, and 0.214. Calculate
(a) the molar concentration of the analyte cX,
(b) the absolute standard deviation of the cX, and
(c) the coefficient of variation of cX.
We need at least 10 more requests to produce the solution.
0 / 10 have requested this problem solution
The more requests, the faster the answer.