ADVANCE STUDY ASSIGNMENT 1. 1. Complete the following table, including the conde

Question

ADVANCE STUDY ASSIGNMENT 1. 1. Complete the following table, including the condensed formulac ofthe acidic compounds, the molecular weights, and the Kavalues. State your source(s). Acid: Acic Potassium hydrogen CsHsKO4 phthalate ormula Molecular Weight Molecular weight 204.222 g'mol 3.91 x 10 Potassium hydrogen KHSO sulfate 136.162 g 1.07 x 10 1.34 x 10 116.072 g Or 1.48 x 10-2 Potassium dihydrogern KH PO 136.084 6.3 x10-8 Citric 192.1 Or 7.4 x 10 Other non-standard names include potassium bisulfate or potassium acid sulfate, Kxalue is equal to that of the second acid ionization constant, for sulfuric acid.

Explanation / Answer

Ka ie dissociation constant is the measure of dissociation of a compound into an aqueous solution.

And it is generally given for a reaction like:

AB(aq) <--------> A+........ +......... B-

Ka = [A+] [B-] / [AB]

Where [A+] , [B-], [AB] = equilibrium Concentration of A+, B- and AB.

So, Ka for the above compounds are:

Potassium hydrogen phthalate = 3.9 * 10^-6

Potassium hydrogen sulfate = 1.2* 10^-2

Maleic acid =  1.5 * 10^-2, 2.6 * 10^-7

Potassium dihydrogen phosphate = 6.3 * 10^-8

Citric acid = 7.1* 10^-4, 1.7* 10^-5, 6.4 * 10^-6

Note: citric acid and maleic acid are polyprotic acids, so they have multiple ka values.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.