Predict the pKa of the indicated H atoms within 2 pKa units. H₂ H H

Given the information about the following acids:i= HW pKa = 2ii= HX pKa = 6iii= HY pKa = 10iv= HZ pKa = 20Which these acids will react almost completely with hydroxide ion to form water?

Chemical formula of Mg2+ and CO32-

Why Potassium cyanide (KCN) is added in the limit test of lead?

Butyric acid, the compound responsible for the unpleasant odor and taste of sour milk, has a pKa value of 4.82. What is its Ka value? Is it a stronger acid or a weaker acid than vitamin C?

How do we find x? I kept getting 2 moles of H and 1 mole O but I know x is supposed to equal 2, so how do we get this?

The Mohr's salt sample is diluted using a 0.5 M H,So,/ H;PO, solution. The function of the sulfuric acid is: Seleccione una. provide the protons for the reaction oxidize the ferrous ion reduce the chromic ion make the final point region more drastic change color when reaching the titration end point

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What chemical is described as 1MH2SO4?

Dihydrogen phosphate, H₂PO₄⁻(aq), undergoes the following acid base equilibria in blood: H₂PO₄⁻(aq) ⇌ H⁺(aq) + HPO₄²⁻(aq)⇌ H⁺(aq) + PO₄³⁻(aq). The pKa values for the first and second steps are 7.2 and 12.4, respectively. The pH of human blood is 7.37 and this is tightly regulated. Which of the following statements most accurately describes the concentrations of the different species for the above reactions in blood. (Hint, think of the titration curves for H₂PO₄⁻(aq) and HPO₄²⁻(aq) and their respective pKa's.) A) [H₂PO₄⁻(aq)] is much greater than [HPO₄²⁻(aq)] and [PO₄³⁻(aq)] B) [HPO₄²⁻(aq)] is much greater than [H₂PO₄⁻(aq)] and [PO₄³⁻(aq)]. C) [H₂PO₄⁻(aq)] and [HPO₄²⁻(aq)] are both present and greater than [PO₄³⁻(aq)]. D) [PO₄³⁻(aq)] is much larger than the other concentrations, [H₂PO₄⁻(aq)] and [HPO₄²⁻(aq)]