How do you prepare 1 L of 30 mM Tris pH 8 (Mw = 121.14), 200 mM NaCl (Mw = 58.44) from a 1 M stock of Tris pH 8? 

The amount of solute dissolved in a given amount of solution is the

A protein has an absorbance of 0.36, and 3 tryptophans (ε = 5500) and 2 tyrosines (ε = 1490). What is its concentration?

How do you prepare 250 ml of 80 mM Tris (Mw = 121.14)?

The Mohr pipette has a ________ tip because its purpose is ________ an exact amount for multiple dispenses.

Which of the following reactions is NOT energetically favorable?

Which of the following would you use for accurately dispensing a sample multiple times from a single aspiration, and is considered “to contain”?

You pipette 10 microliters of BSA (1 mg/ml) into Coomassie and read its absorbance in the spectrophotometer, which gives a reading of 0.5 compared to a blank. This is a(n) ________ measurement.

Ebola virus is an extremely high risk organism that is likely to cause disease or death, and it has an aerosol route of entry. There are no current treatments available. A lab that studies this organism would be assigned a rating of

Which of the following discoveries likely led to the birth of molecular biology?