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In a titration experiment with your product, it took 1.33 ml of phenylmagnesium bromide to reach the endpoint (bright golden orange). what is the concentration of the phenylmagnesium bromide solution if you started with 75.1 mg of indicator? report you answer to 3 decimal places.

Respuesta :

The concentration of the phenylmagnesium bromide solution is 0.271M.

How we calculate the concentration?

We can calculate the concentration in the terms of molarity as:

M = W / M.V, where

W = given mass

M = molar mass

V = volume

Molar ratio of indicator and phenylmagnesium bromide is 1:1. And indicator in this titration is Salicylaldehyde phenylhydrazone. So, concentration of phenylmagnesium bromide solution will be calculated by using the same moles of indicator as:

Given mass of indicator = 75.1mg = 0.075g

Molar mass of indicator = 212.253g/mole

Moles of indicator = 0.075 / 212.253 = 0.000353 moles

Volume of phenylmagnesium bromide = 1.33mL = 0.0013L

Concentration of phenylmagnesium bromide = 0.000353/0.0013 = 0.271M

Hence, required concentration is 0.271M.

To know more about molarity, visit the below link:

https://brainly.com/question/10608366

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