The initial volume of a sample is 100 L. It is diluted with ...

[neverstopbelieb]

The initial volume of a sample is 100 L. It is diluted with saline by a factor of 4. The final volume is 400 L. Testing the diluted sample finds an analyte concentration of 25 g/mL.
 
  Which of the following expressions can be used to calculate the initial analyte concentration of this sample?
  A)
  B)
  C)
  D)

Question 2

Which of the following expressions defines the dilution ratio of a sample?
 
  A) = Cfinal
  B) =
  C) =
  D) = Vfinal

[JYan]

Answer to Question 1

A

Answer to Question 2

B