How do you calculate K_a from a titration curve? Calculate the pH of a 0.10 mol/L solution of ascorbic acid, H2C6H6O6(aq), and the equilibrium concentrations of H2C6H6O6, HC6H6O6-(aq), and C6H6O6^2-(aq) in this
How to calculate equilibrium constant from Gibbs free energy? How does concentration affect reaction rate? How do you balance chemical reactions? Describe how to find the standard reaction entropy change. How to calculate activation energy from an Arrhenius plot?
the equilibrium constant Kc is defined as [AB]/[A][B]. Brackets denote reagent concentrations that must be given in order to compute Kc. As an example, we will calculate Kc for two reactions. The first is the
the concentration of ion {eq}B {/eq} is equal to {eq}bx \:\frac{mol}{L} {/eq} Step 4:Substitute the equilibrium concentrations of the ions into the {eq}K_{sp} {/eq} equation fromStep 2. $$K_{sp} = [ax]^{a}[bx]^{b} $$ Solve for {eq}x {/eq}. Then, the solubili...
Step 2:Plug in the known values ofE0and n into the Nernst equation to calculate the equilibrium constantKfrom the standard cell potentialE0. Now that we have identified the standard cell potential and the number of moles of electrons transferred, we just need to plug them into ...
Multiply the Kb value by the total ammonia concentration and the number 4. The total concentration is the sum of [NH4+] and [NH3] in the solution. This concentration must be known or given in order to calculate pH. For example, the concentration is equal to 0.1 molar. Then the value ...
In acid-base reactions, the equilibrium constant (keq value) is known as _Ka_. To work out Ka when you know pKa, use a calculator to find the antilog. The pKa Value The pKa Value When an acid dissociates in water, it releases a proton to make the solution acidic. However, only wea...
Water activity (aw) is similar to equilibrium relative humidity and uses a scale of 0 to 1, instead of 0% to 100%. Enthalpy Enthalpy is the amount of energy required to bring a gas to its current state from a dry gas at 0°C. It is used in air conditioning calculations. ...
To calculate the reduced glutathione concentration, the concentration of oxidized glutathione was subtracted from the total glutathione concentration. Statistical analysis Sigmaplot 13 (Systat Software GmbH, Erkrath, Germany) or GraphPad PRISM (Prism 9 for Windows, version 9.2.0 (332), GraphPad Software...
Why isn't it affected by concentration or pressure, etc? The way I understand it, it has something to do with equilibrium and Le Chatelier's principle, as it shifts the position of the equilibrium... But what makes temperature so special that it is the only thing that affects pKa?