Is NH4Br an acid or base in water?
Is NH4Br an acid or base in water?
Re: Homework Help 12.65. Typically, when doing these problems, you want to look at the molecular formula and see if it is a base or an acid when in water. NH4Br will dissociate into NH3 and H+ ion(or hydronium), thus NH4 is an acid because it donated an electron and the solution is acidic due to the increase of H+ ion.
Is KBr a base or acid?
Classifying Electrolytes
| Strong Electrolytes | strong acids | HCl, HBr, HI, HNO3, HClO3, HClO4, and H2SO4 |
|---|---|---|
| strong bases | NaOH, KOH, LiOH, Ba(OH)2, and Ca(OH)2 | |
| salts | NaCl, KBr, MgCl2, and many, many more | |
| Weak Electrolytes | ||
| weak acids | HF, HC2H3O2 (acetic acid), H2CO3 (carbonic acid), H3PO4 (phosphoric acid), and many more |
Does pH affect protein solubility?
Proteins with the greatest positive charge are removed first. The pH influences protein stability in two ways: 1. It affects protein solubility 2. It influences the charge (positive or negative) on the protein molecule.
Why does pH affect protein structure?
Decreasing the pH by adding an acid converts the –COO- ion to a neutral -COOH group. In each case the ionic attraction disappears, and the protein shape unfolds. Various amino acid side chains can hydrogen bond to each other. Changing the pH disrupts the hydrogen bonds, and this changes the shape of the protein.
Do proteins denature at high pH?
Note 2: Denaturation can occur when proteins and nucleic acids are subjected to elevated temperature or to extremes of pH, or to nonphysiological concentrations of salt, organic solvents, urea, or other chemical agents.
Does pH affect quaternary structure?
Just as with secondary and tertiary structures, the introduction of a highly acidic solution can disrupt these intermolecular interactions, thus causing a disruption in the quaternary structure of a protein composed of two or more polypeptide chains.
Which is the optimum pH of most cells in the body?
). Physiologically normal intracellular pH is most commonly between 7.0 and 7.4, though there is variability between tissues (e.g., mammalian skeletal muscle tends to have a pHi of 6.8–7.1). There is also pH variation across different organelles, which can span from around 4.5 to 8.0.