2. A 0.10 mol/L solution of a weak acid was found to be 4.0% dissociated. Calculate Ka. (5 marks)

3. Calculate the pH of a 0.10 mol/L solution of ascorbic acid, H2C6H6O6 (aq) and the
equilibrium concentration of H2C6H6O6, HC6H6O6^-(aq) and C6H6O6^2- (aq). Ascorbic acid
is a polyprotic acid. (8 marks)

4. What is the value of the base ionization constant, Kb, for the acetate ion, C2H3O2^- (aq).
(3 marks)

5. Calculate the pH of a 0.100 mol/L aqueous solution of hydrazine, N2H4(aq), a weak
base. The kb for hydrazine is 1.7 x 10^-6. (5 marks)​

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.

i wish i could but this one is weird give me abc and i can solve it.

explanation:

two years ago, when picking flowers in the mountains back of yosemite valley, i found a book. it was blotted and storm-beaten; all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however; many of the inner pages were well preserved. and although all were more or less stained and torn, whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today; its granite pages have been torn and blurred by the same storms that wasted the castaway book.

two years ago, when picking flowers in the mountains back of yosemite valley; i found a book. it was blotted and storm-beaten, all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however, many of the inner pages were well preserved. and although all were more or less stained and torn; whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today, its granite pages have been torn and blurred by the same storms that wasted the castaway book.