Organic Chemistry Calculation Question! Help me please!?

Question

Hi Guys,

Having a little difficulty with this organic chemistry lab calculations and I have no idea how to approach it or solve it! It's an oxidation problme but I don't understand the stoichiometry or the units involved the calculation, can someone please help me as my teacher is not available for assistance this week.

Calculate the volume of 5.25% (wt./vol.) NaOCl solution (commercial bleach)

required to oxidize 100 mg of 9-fluorenol to 9-fluorenone. Whenever

appropriate, use balanced chemical equations as a part of your calculation.

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I understand how to get the moles of 9-fluorenol, but after that do I just use a 1:1 molar ratio or how does it work with the 5.25%NaOCl wt./vol? Do i just flip it?

Thank you in advance so much to anyone who can help me! :)

Answer 1

Balanced eq is:

2C13H8OH + NaOCl ---> 2C13H8=O + H2O + NaCl, so you need 1/2 mol NaOCl for each mol fluorenol

Fluorenol start is 0.100g / 182.2 g/mol = XX mols, so you need XX/ 2 mols NaOCl

MW of NaOCl is 74.45, so each ml of bleach contains 0.0525g / 74.45 g/mol = YY mols

You do the math, remembering you need only half as many mols NaOCl as fluorenol