pka : 8.5 WH₂ OH (C) ( 13 ) pka 24.5 compound is likely to be least Soluble a+ pH = 6.5 which which compound begiven is likely to be least permeable at pHq. q A ●
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- н (ад) + Crz0; (ag) + СHон() acid Сf" (ag) + Co:(s) + H.0()What is the pH of a grapefruit that contains 0.007 M citric acid solution (CsH2O-)? CH;O;(aq) + H;O(2) = CH;0, (aq) + H3Oʻ(aq) K, = 7.5 x 104 Round your answer to 2 decimal places.(a) Write a balanced equation representing the reaction of the acid, H2PO4- with the base, water. (b) Write the expression for Ka of H2PO4- in terms of concentrations of relevant species.
- A fertilizer railroad car carrying 34,300 gallons of commercialaqueous ammonia (30% ammonia by mass)tips over and spills. The density of the aqueous ammoniasolution is 0.88 g>cm3. What mass of citric acid,C(OH21COOH21CH2COOH22, (which contains three acidicprotons) is required to neutralize the spill? 1 gallon = 3.785 L.Preparation of 0.1 M Hydrochloric Acid Solution by Dilution8) What are the respective concentrations (M) of Fe3+ and I afforded by dissolving 0.200 mol Fel3 in water and diluting to 725 mL?
- (a) Give the conjugate base of the following Brønsted–Lowry acids: (i) HIO3, (ii) NH4+. (b) Give the conjugate acidof the following Brønsted–Lowry bases: (i) O2-, (ii) H2PO4-.Ammonia, NH3, is amphoteric. (a) Give the formula for the conjugate acid of NH3. (b) Give the formula for the conjugate base of NH3.Ethylammonium chloride, CH;CH;NH3CI, is an acidic salt. (i) Write equations to show the dissolving of CH;CH2NH;CI in water and the further reaction of the ethylammonium ion. (ii) Calculate the pH of a 0.218 mol L1 solution of ethylammonium chloride
- 8) What is the pH of a 0.035 M HNO, solution? HNO3 (aq) + H,0 (1) H;O* (aq) + NO; (aq)(a) Draw the Lewis structures for at least four species thathave the general formula where X and Y may be the same or different, and n mayhave a value from +1 to -2. (b) Which of the compoundsis likely to be the strongest Brønsted base?Boric acid, H3BO3, is not a Brønsted-Lowry acid but a Lewis acid.(a) Write an equation for its reaction with water.(b) Predict the shape of the anion thus formed.(c) What is the hybridization on the boron consistent with the shape you have predicted?