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Author Question: Why should you use a new Pasteur pipette each time you use a different ... (Read 48 times)

fasfsadfdsfa

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on: Aug 23, 2018
Why should you use a new Pasteur pipette each time you use a different solvent?

Question 2

What is the molecular weight of Compound X given the following information?  The density of Compound X is 1.32 g/mL.  0.520 mL of Compound X is equal to 1.00 mmol.


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mcni194

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Reply #1 on: Aug 23, 2018
Answer to Question 1

You should avoid cross-contaminating one solvent with another. The easiest way to accomplish this is by always using a new Pasteur pipette.

Answer to Question 2

(0.520 mL/1.00 mmol)(1.32 g/mL)(1000 mmol/mol) = 686 g/mol


fasfsadfdsfa

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Reply #2 on: Aug 23, 2018
Both answers were spot on, thank you once again


mcni194

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Reply #3 on: Aug 23, 2018
Great! Please up vote :D


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