Dialysis is often used to change the buffer that protein is in. if a protein is in 50 ml of hepes buffer (7.4) and is dialyzed overnight with 4 liters of imidazole(6.8), how much (%) of hepes buffer has been removed from the protein?

In which phase(s) do the molecules take the shape of the container?

Astudent carefully transfers 30 g of water and 30 g of alcohol in a glass tube, forming two layers and filling the tube completely. after sealing the tube, the student mixes the solutions, and notices a bubble that forms in the tube. what is the mass of the contents in the glass tube after mixing?

If a polyatomic ionic compound has gained two hydrogen ions, then how does its name begin?