Calculate the concentration of hydrogen ions in an acetic acid solution given that the pKa = 4.76 and the ratio of [CH_3 COO^- ]/[CH_3 COOH] is 0.6. Break down the mathematical steps when you get ''4.53 = -\log(H^+)'' and the steps to the final answer of ...
You can also calculate concentration from pH and pKa, the latter being derived from the acid dissociation constant **Ka**. The higher the Ka for a particular acid, the stronger the acid it is. The pKa for any acid is the pH at which half of the acid has been ionized (that is, when...
a buffer solution consists of a weak acid or base mixed with the salt of its conjugate base or acid, respectively. To calculate the specific pH of a given buffer, you need to use the Henderson-Hasselbalch
The octet rule is often used to describe why an atom loses or gains electrons to achieve a stable valence electron configuration (for elements that only utilize the s and p orbitals). How does this rule explain the stability of noble gases, the tendency o How to determine dipole moment from...
How to Calculate the pH of a Buffer The Henderson-Hasselbalch equation solves for the pH of a solution using pKa, which is the negative log of the acid dissociation constant. This value is an equilibrium constant for the reaction of {eq}HA \rightleftharpoons A^- + H^+ {/eq}, which ...
We next asked how it is possible that long-lived misfolded proteins are able to bypass the post-translational cellular chaperone machinery. To address this question we used coarse-grained Langevin dynamics to calculate the dissociation constant between the chaperone GroEL and three distinct conformational...
1. The Acidity Constant Ka and Its Negative Logarithm pKa Let’s review some key principles of acidity constants to make sure we’re all on the same page. The acidity constant, Ka, is a measurement of the equilibrium between an acid, H-A and its dissociation to give H+ and its conjuga...
Development of reversible and stable catalysts for the electrochemical reduction of CO2 is of great interest. Here, we elucidate the atomistic details of how a palladium electrocatalyst inhibits CO poisoning during both formic acid oxidation to carbon di
Multiply the triangle semiperimeter by each value obtained in Steps 4 to 6. In the example, the equation would be: 15.94 x 8.23 x 5.69 x 2.02 = 1507.83 Step 8 Take the square root of the product from Step 7 to calculate the triangle's area. In the example, the area of the triangle...
In an aqueous solution, classify the compound as a strong acid, weak acid, strong base, weak base, or other for HBr. A 0.13-M solution of a weak acid is 2.9% dissociated. Calculate K_a. A 0.13 M solution of a weak acid is 3.7% dissociated. Calcula...