Wich of the following is NOT true about the blank for the experiment, 'Analysis of a Complex Iron Salt'?

A. A blank is composed of the solvent used to dissolve the analyte. For this experiment, the solvent is a combination of sulfuric acid, phosphoric acid, and water.
B. The volume required to titrate the blank is subtracted from the volume used to titrate the analyte solution to give the "corrected volume".
C. A blank is titrated to correct for any reactive impurities in the solvent. For this experiment, the impurities would be reducing agents that would react with KMnO4 (mimicking the behavior of C2O42– ).
D. The blank for this experiment must have 100 % transmittance if placed in a spectrometer (Spec 20).
E. All of these are true.

guys the answer is NOT "The blank for this experiment must have 100 % transmittance if placed in a spectrometer (Spec 20)." Sapling marked me wrong :(

Apparently, the answer is A "A blank is composed of the solvent used to dissolve the analyte. For this experiment, the solvent is a combination of sulfuric acid, phosphoric acid, and water."

To determine which statement is NOT true about the blank for the experiment, 'Analysis of a Complex Iron Salt,' we can evaluate each statement individually.

A. A blank is composed of the solvent used to dissolve the analyte. For this experiment, the solvent is a combination of sulfuric acid, phosphoric acid, and water.

This statement is generally true. A blank is typically made up of the solvent used to dissolve the analyte, allowing us to account for any impurities or reactions specific to the solvent.

B. The volume required to titrate the blank is subtracted from the volume used to titrate the analyte solution to give the "corrected volume."

This statement is also typically true. By subtracting the volume required to titrate the blank, we can remove any contributions from the blank and focus on the reaction between the analyte solution and the titrant.

C. A blank is titrated to correct for any reactive impurities in the solvent. For this experiment, the impurities would be reducing agents that would react with KMnO4 (mimicking the behavior of C2O42– ).

This statement is generally true as well. The purpose of titrating the blank is to account for any reactive impurities that could interfere with the analysis. In this specific experiment, the impurities would mimic the behavior of the analyte, helping us correct for their impact.

D. The blank for this experiment must have 100% transmittance if placed in a spectrometer (Spec 20).

This statement is NOT true. The transmittance of the blank in a spectrometer is typically used to establish a baseline, but it does not have to be 100%. It only needs to be consistent so that any variations caused by the sample can be accurately measured.

Based on this analysis, the statement that is NOT true about the blank for the experiment, 'Analysis of a Complex Iron Salt,' is:

D. The blank for this experiment must have 100% transmittance if placed in a spectrometer (Spec 20).

YEA!!!!!!!! I GOT IT RIGHT

ANSWER IS The blank for this experiment must have 100 % transmittance if placed in a spectrometer (Spec 20).

I am from de futurez. Mr. anteater speaks the truth. trust hiiiiim......

no, the answer if F

The answer is definitely "The blank for this experiment must have 100 % transmittance if placed in a spectrometer (Spec 20)."

First off, yes they misspelled "wich"

second. the answer is NOT EEEEE!

third, the answer IS D!!!

if the date on this is old, and youre from a future webworks, make sure to read the answer and not just the letter because sometimes they mix up the choices to screw with your head.

goodluck!