Predict the direction of the following reaction. Approximate pKa values in water are provided. pka 17 OH ند pka 12 A) reactant favored B) a mixture of reactants and products C) product favored

3.25 mL of Biomarker A (4.21 x 10-7 mol L-1) was brought up to volume with deionized water in a 50 mL volumetric flask. What is the final concentration after this dilution (in mol/ L)

pKal pK₂2 Phosphoric acid, H, PO, (aq), is a triprotic acid, meaning that one molecule of the acid has three acidic protons. Estimate the pH and the concentrations of all species in a 0.300 M phosphoric acid solution. 2.16 7.21 [H, PO₁] = M [H*] = [H₂PO¡] = M [OH-] = [HPO ] = M pH = [PO] = M PK₂3 12.32 M M

Given the reaction of 2 Ti (s) + 4 Cl2 (g) → 2 TiCl, (1) ΔΗ- 1608.4 J what would the AH for Ti (s) + 2 Cl, (g) TiCl, (1) S. -3216.8 J 804.2 J -804.2 J O-1608.4 J 5:18 PM

Illustrate the process of determining the direction of equilibrium using pKa ?

The donated proton from acids reacts strongly with non-binding electron pairs of water 000 0 hydroxide alcohol coke to form hydrated hydrogen

Which statement about the pKa value is false?        The pKa value is calculated from the equilibrium constant for the dissociation of the acid.       The pKa value is a measure of the strength of an acid.       The pKa value of a given acid gives an indication of the strength of the conjugate base of that acid.       A larger pKa value indicates a stronger acid and a weaker associated conjugate base.       All of these statements are correct.

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Rank the relative pka's of the four alpha hydrogens indicated below. (1 = lowest) Ph. H OMe Ph. H CI Ph. H O H Ph. H NMe2

T. The pH of a 1.00 M solution of formic acid is 1.879 at 25 °C. What is the pKa value of formic acid? -1