Author Question: Why should you use a new Pasteur pipette each time you use a different ... (Read 44 times)

fasfsadfdsfa · **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.

mcni194 · **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