Part A The forensic technician at a crime scene has just prepared a luminol stock solution...

Question

Question

Part A The forensic technician at a crime scene has just prepared a luminol stock solution...

Part A

The forensic technician at a crime scene has just prepared a luminol stock solution by adding 14.0g 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.

Part B

Before investigating the scene, the technician must dilute the luminol solution to a concentration of 5.00�10^?2M . 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.

Part C

What volume of the stock solution (Part A) would contain the number of moles present in the diluted solution (Part B)?

Express your answer with the appropriate units. (mL)

science chemistry

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Answer 1

molarity of luminol solution =

1.05 M

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Correct

Answer 2

moles of luminol =

0.100 mol

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Correct

Answer 3

Answer #1

Given the substanceis luminal Weight of luminal is 14 g and volume of solution is 75 mL Molecular weight of luminal =177 g/mo

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Answer 4

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Part A The forensic technician at a crime scene has just prepared a luminol stock solution...

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