Select all the statements that are TRUE in regards to Parallel Dilutions :( you

Question

Select all the statements that are TRUE in regards to Parallel Dilutions:( you can sellect more than one)

a.Original stock serves as the sole source for all the dilutions.
b.Major drawback is error propagation: errors at the beginning affect the entire set, and repeated small inaccuracies amplify, potentially resulting in significant drift
c.Stepwise preparation in which each dilution serves as the source for the next dilution
d.Performed when dilution sets with high accuracy but limited span are desired.
e.Performed when dilution sets that span wide ranges and terminate on highly diluted solutions are desired

Explanation / Answer

A parallel dilution is useful to make a desired dilution, when the desired concentrations are unrelated to each other by a common dilution factor.

Formula for parallel dilution is:

concentration of stock x voluem of stock = concentration of desired x volume of desired

a. Original stock only serve as source. True

b. Not true, for every desired solution, we start with stock solution

c. Not True,

D. True

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