Answer to Question #160646 in Chemistry for Dexther Villanueva

Question

Which of the following will lead to errors in an analysis? 

A. In the gravimetric determination of SO4-2, the BaSO4 precipitate is filtered off right after it is precipitated.

B. all of the given answers.

C. phenolphthalein indicator was used in an NH3 vs. H2SO4 titration

D. the equivalent weight of sodium carbonate used in the calculation of a titration with HCl to the PP endpoint is 106 grams

E. The standard KMnO4 solution was stored in a clear glass bottle after standardization.

Answer 1

B. all of the given answers.