Author Question: The initial volume of a sample is 100 L. It is diluted with saline by a factor of 4. The final ... (Read 84 times)

neverstopbelieb

  • Hero Member
  • *****
  • Posts: 534
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

  • Sr. Member
  • ****
  • Posts: 331
Answer to Question 1

A

Answer to Question 2

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

The average adult has about 21 square feet of skin.

For a complete list of videos, visit our video library