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QUESTION 10 Which of the following compounds could you mix with carbonic acid (H2CO3) to create...
QUESTION 10 Which of the following compounds could you mix with acetic acid (HCH3CO) to create a buffer? O Ammonia (NH3) Sodium bicarbonate (NaHCO3) O Nitric acid (HNO3) Potassium acetate (KCH3CO2) O Hydrochloric acid (HCI)
QUESTION 10 Which of the following compounds could you mix with acetic acid (HCH3CO2) to create a buffer? Potassium acetate (KCH3CO2) Sodium bicarbonate (NaHCO3) Hydrochloric acid (HCI) Ammonia (NH3) Nitric acid (HNO3)
QUESTION 10 Which of the following compounds could you mix with acetic acid (HCH3CO2) to create a buffer? Ammonia (NH3) Hydrochloric acid (HCI) Sodium bicarbonate (NaHCO3) Potassium acetate (KCH3CO2) Nitric acid (HNO3)
You create a 1 L solution of 0.1 M H2CO3. carbonic acid, H2CO3, is a diprotic acid with Ka1 = 4.5 x 10-7 and Ka2 = 4.7 x 10-11. a) What will the initial pH of the solution be? b) What volume of 0.1 M NaOH will you need to add to reach the second equivalence point( remember carbonic acid deprotonates to bicarbonate HCO3- and then can deprotonate further to CO32-? c) At the second equivalence point, what will the...
Help calculating part B please! Given that carbonic acid, H2CO3, has a pkai = 6.37 and a pka2 = 10.33, answer the following. (a) If you wanted to make a pH 7 buffer solution starting with NaHCO3(aq), would you add 0.10 M HCl or 0.10 M NaOH? 0.10 M HCI O 0.10 M NaOH (b) If you began with 5.0 mL of 0.42 M NaHCO3, how many mL of your choice from (a) would you need to add to get...
please explain how you got these answers!! and me 17) (5 pts) Calculate the pH of a solution that is 0.15 Min ammonia (NH3) and 0.40 ammonium chloride, given the ionization constant of the base, kb, NH3 = 1.76 X 10 equilibrium reaction: NH3(aq) + H20 (1) 2 NH4(aq) + OH' (aq) A) 5.18 B) 8.82 C) 9.25 D) 9.50 E) 9.63 18) (5 pts) By far the most important buffer for maintaining acid-base balance in the blood is the...
21. What are the characteristics of the carbonic acid-bicarbonate buffer system (select all that apply? a CO2 is eliminated by the lungs b. Neutralizes HCl acid to yield carbonic acid and salt c. H2CO3 formed by neutralization dissociates into H2O and CO2 d. Shifts H+ in and out of cell in exchange for other cations such as potassium and sodium e. Free basic radicals dissociate into ammonia and OH-, which combines with Ho to form water 22. What are characteristics...
Which of the following weak acids and is salt could you use to make a buffer solution with a pH of 3.00? acetic acid/sodium acetate Ka - 1.8 x 10-5 hydrocyanic acid/sodium cyanide Ka - 4.9 x 10-10 phosphoric acid/sodium dihydrogen phosphate Ka - 7.5 x 10-3 Carbonic acid/sodium bicarbonate Ka = 4.3 x 10?
Which weak acid should be used to create a buffer at pH= 4.7 "Carbonic, H2CO3, Ka = 4.30×10–7" "Hypochlorous Acid, HOCl, , Ka = 3.50×10–8" "Hypobromous Acid, HOBr, Ka = 2.00×10–9" "Chloroacetic Acid, CClH2O2H, Ka = 1.36×10–3" "Lactic Acid, C3H6O2, Ka = 1.38×10–4" "Acetic Acid, CH3O2H, Ka = 1.75×10–5"
the first step in the reaction of Alka-Seltzer with stomach acid consists of one mole of sodium bicarbonate (NaHCO3) reacting with one mole of hydrochloric acid (HCl) to produce one mole of carbonic acid (H2CO3), and one mole CNN of sodium chloride. (NaCl) Using this chemical stoichiometry, determine the number of moles of carbonic acid that can be produced from 5 mol NaHCO, and 8 mol HCI. moles of carbonic acid : mol Which of the two reactants limits the...