Figuring Out Patent Blue Solution Concentration

In summary, The conversation discusses using a food coloring, patent blue V, in a candy shop. The goal is to determine the molar concentration of patent blue in a solution used for coloring candy. The formula used is concentration x volume = moles. The molar mass of patent blue is 1160 g.mol-1 and it is a solid that does not react to water. The question is how much patent blue needs to be dissolved in order to make the mother solution, and the formula to solve this is concentration x volume = moles.
  • #1
orangeSLICE
8
0
Hello :blushing:

I need help trying to figure this out:

Patent blue V is a food coloring designed under the code E 131. Using a scales of blue tints, we hope to determine the molar concentration of patent blue in a solution used to color candy in a candy shop. We make a range of tints starting from the volume V = 1,00 l of the "mother solution" So, of the concentration C in patent blue equal to 1,00*10^-3 mol.L-1.

Here's the information given before the question:

Molar mass od patent blue : M = 1160 g.mol-1
Patent blue is a solid that does not react to water.

Question:

How much patent blue needs to be dissolved in order to make the mother solution?

I don't know which formula to use in order to solve this. Any suggestions?

P.S. Sorry if this is extremely hard to understand, the exercise was originally given to me in french. :shy:
 
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  • #2
How many moles of patent blue are in 1 L of your desired mother solution w/ your desired concentration?


Concentration (in molarity) x volume= moles
 
  • #3
thank you... simply put :shy:
 

1. What is Patent Blue Solution?

Patent Blue Solution is a blue dye commonly used in medical and scientific research. It is also known as Patent Blue V or E131, and its chemical name is disodium 4,4'-[4-(ethylimino)disulfonato]diphenyl-3,3'-[4-(ethylimino)disulfonyl]dianiline disodium salt.

2. How is the concentration of Patent Blue Solution determined?

The concentration of Patent Blue Solution is typically determined by measuring its absorbance using a spectrophotometer. This method relies on the fact that the more concentrated a solution is, the more light it will absorb at a particular wavelength. By comparing the absorbance of the solution to a standard curve, the concentration can be calculated.

3. What is the purpose of figuring out Patent Blue Solution concentration?

Knowing the concentration of Patent Blue Solution is important for accurate and reproducible results in experiments. It is also necessary for proper dosing in medical procedures where the solution is used as a dye, such as lymph node mapping or sentinel lymph node biopsy.

4. How is the concentration of Patent Blue Solution adjusted?

The concentration of Patent Blue Solution can be adjusted by dilution with a solvent, such as water or saline. The amount of solvent added will depend on the desired concentration and the initial concentration of the solution. For example, if a 1% solution is needed and the initial concentration is 10%, the solution can be diluted by a factor of 10 by adding 9 parts of solvent for every 1 part of solution.

5. Are there any safety concerns when working with Patent Blue Solution?

Yes, there are safety concerns when working with Patent Blue Solution. It is a skin and eye irritant and can cause allergic reactions in some individuals. It is important to wear gloves and protective eyewear when handling the solution. In addition, proper disposal methods should be followed to prevent environmental contamination. It is always recommended to consult the safety data sheet for specific handling and disposal instructions.

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