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Calculate the pH of a 1.51 mol/L solution of hydrofluoric acid. The pKa of HF is 3.17. Calculate the pH of a buffer solution that is 0.40 M in both HC2H3O2 and NaC2H3O2. Between benzoic acid and acetic acid, which is a stronger acid without looking to pKa value? Why ...
The strengths of acid and bases can be assigned a value:pKa, or theacid dissociation constant, the pH value at which half of an acid has donated its protons while the other half remains in the conjugated state. (Bases have, you guessed it, pKbvalues.) Stronger acids thus have lower pKa...
Find the mass of sodium formate that must be dissolved in 150.0 cm^3 of a 0.50 M solution of formic acid to prepare a buffer solution with pH = 3.10. If a solution has an H+ concentration of 0.00000001 moles per liter, calculate th...
KA Kainic Acid KA Keine Angabe (German) KA Killer App KA Kenmore Air KA Key Area KA Key Activities KA Keratoacanthoma KA Acid Dissociation Constant KA King's Army (historic reenactment group) KA Ionization Constant KA Karlovac, Croatia (license plate) KA Knowledge Architecture KA Kids to Ad...
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...
The velocity of the Brownian motion is defined by a transla- tional diffusion coefficient that can be used to calculate the hydrodynamic radius, i.e. the radius of the sphere that would diffuse with the same rate as the molecule of interest. This is done by measuring, with an autocorre-...
The effect of electron flow through a complete circuit on transition state acid dissociation constants is used to explain the remarkable catalysis observed in a redox reaction, the formation of compound I from native peroxidase. The explanation for the huge shift in the dissociation constant of a ...
To calculate the fluid loss from retinal blood-brain barrier we can use Starling equation for fluid filtration (Yuan and R.R., 2010), but to do this we need to estimate driving pressures and the hydraulic conductivity for the blood-brain barrier (in units of cm3 of transudate/s/cm H2O...
The balance between the market demand and the natural abundance of the rare-earth elements (REEs) in ores, often referred to as the Balance Problem (or the