a)
Interpretation:
The least squares slope and intercept and their standard deviation from the prepared calibration curve has to be calculated.
Concept Introduction:-
LINEST:
The LINEST is a Microsoft excel function which is uses the least squares method to measure the statistics for a straight line and array describing that line it is built-in function that can be categorized.
LINEARITY:
It is measure of how well a calibration curve follows a straight line and displaying that the response is proportional to the quantity of the analyte.
Where R means square of
Standard additions to one solution:
The graph can be drawn using the equation
Where X-intercept is
b)
Interpretation:
The value of
Concept Introduction:-
Response of ion-selective electrode:
The response of an ion-selective electrode to its primary ion (A) and to interfering ions of the same charge, when the response to every ion is Nernstian.
Where,
c)
Interpretation:
The concentration of
Concept Introduction:-
Propagation of uncertainty with a calibration curve:
The standard uncertainty for
Where,
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