Question

Which statement regarding the multiple solutions with constant volume standard addition method is FALSE?

a)	Analytical reagents are added to each volumetric flask and diluted to volume.

b) Detector response versus diluted standard is plotted.

c) Equal volumes of standard are pipetted into each volumetric flask.

d) The absolute value of the x-intercept for the best-fit line is the diluted unknown concentration.

e)	Equal volumes of unknown are pipetted into a set of volumetric flasks with identical volume.

Answer 1

For the standard addition method

We take a series of flasks

And pipet out equal volumes of unknown into each flask

Into this flasks series of increased standard solution is added

From this information we get to know that

Equal volumes of standard are not pipetted in each flask

So that the false statement is

c) Equal volumes of standard are pipetted into each volumetric flask

I hope this helps if you have any query or want more detailed explanation feel free to ask in the comments section below.