The forensic technician at a crime scene has just prepared a luminol stock solution by adding 15.0 g of luminol into a total volume of 75.0 mL of H3O. What is the molarity of the stock solution of luminol? Express your answer with the appropriate units. > View Available Hint(s) ? molarity of luminol solution = Value Units Submit Part B Before investigating the scene, the technician must dilute the luminol solution to a concentration of 6.00×10-2 M . The diluted solution is then placed in a spray bottle for application on the desired surfaces. How many moles of luminol are present in 2.00 L of the diluted spray? Express your answer with the appropriate units. View Availahle Hintie)
The forensic technician at a crime scene has just prepared a luminol stock solution by adding 15.0 g of luminol into a total volume of 75.0 mL of H3O. What is the molarity of the stock solution of luminol? Express your answer with the appropriate units. > View Available Hint(s) ? molarity of luminol solution = Value Units Submit Part B Before investigating the scene, the technician must dilute the luminol solution to a concentration of 6.00×10-2 M . The diluted solution is then placed in a spray bottle for application on the desired surfaces. How many moles of luminol are present in 2.00 L of the diluted spray? Express your answer with the appropriate units. View Availahle Hintie)
Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter11: Chemical Kinetics
Section: Chapter Questions
Problem 11.8PAE
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Question
![Part A
The chemical 5-amino-2,3-dihydro-1,4-phthalazinedione, better known
as luminol, is used by forensic scientists in analyzing crime scenes for
the presence of washed-away blood. Luminol is so sensitive that it can
detect blood that has been diluted 10,000 times. A basic solution of
luminol is often sprayed onto surfaces that are suspected of containing
minute amounts of blood.
The forensic technician at a crime scene has just prepared a luminol stock solution by adding 15.0 g of luminol into a total volume of 75.0 mL of H2O.
What is the molarity of the stock solution of luminol?
Express your answer with the appropriate units.
Luminol has a molecular weight of 177 g/mol.
• View Available Hint(s)
HẢ
molarity of luminol solution =
Value
Units
Submit
Part B
Before investigating the scene, the technician must dilute the luminol solution to a concentration of 6.00x10-2 M. The diluted solution is then placed in a spray bottle
for application on the desired surfaces.
How many moles of luminol are present in 2.00L of the diluted spray?
Express your answer with the appropriate units.
• View Available Hint(s)
µA
?
moles of luminol =
Value
Units
Submit](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6eaeb4cc-b7d6-4833-87bf-737413e96f22%2F6dcda7c0-0807-492f-bec3-da1342d7afb3%2Fk9qwy9o_processed.png&w=3840&q=75)
Transcribed Image Text:Part A
The chemical 5-amino-2,3-dihydro-1,4-phthalazinedione, better known
as luminol, is used by forensic scientists in analyzing crime scenes for
the presence of washed-away blood. Luminol is so sensitive that it can
detect blood that has been diluted 10,000 times. A basic solution of
luminol is often sprayed onto surfaces that are suspected of containing
minute amounts of blood.
The forensic technician at a crime scene has just prepared a luminol stock solution by adding 15.0 g of luminol into a total volume of 75.0 mL of H2O.
What is the molarity of the stock solution of luminol?
Express your answer with the appropriate units.
Luminol has a molecular weight of 177 g/mol.
• View Available Hint(s)
HẢ
molarity of luminol solution =
Value
Units
Submit
Part B
Before investigating the scene, the technician must dilute the luminol solution to a concentration of 6.00x10-2 M. The diluted solution is then placed in a spray bottle
for application on the desired surfaces.
How many moles of luminol are present in 2.00L of the diluted spray?
Express your answer with the appropriate units.
• View Available Hint(s)
µA
?
moles of luminol =
Value
Units
Submit
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