Question

What are the best Lewis structures for these acid molecules ?

Your answer should cover the fundamental definition in one grammatically-correct u uub us Soltition is neutral'? sentence. Competency Question 2. . What chemical species must be present to make a buffer? . What is the ideal ratio between the species in the buffer? What two ratios define the limits of a useful buffer? - Your first answer should cover the fundamental definition in one grammatically-correct sentence. Your second answer should include three ratios, clearly defined, in one grammatically-correct sentence ompetency Question 3. raw the best Lewis structure for these acid molecules:- and- -. The instructors will choose two molecules for the exam. Both structures must be perfect to get credit for this question. Hint: some of the structures require an expanded octet. - Possible compounds: HCH3CO2, H2COs, H2SO4, H3PO, HCIO ompetency Question 4. etermine the pH of a M solution of acetic acid (K,- 1.76x109) in water. etermine the pH of aM solution of mmonia (K, 1.79x109) in water. The instructors will choose either acetic acid or ammonia for the exam. They will choose a concentration between 0.110 M and 0.510 M 2 9 Your full-credit answer must show (1) the equilibrium reaction equation and ICE table, (2) n unntinl mathematical work, and (4) the

Answer 1

CH3COOH H-CO3 H :O H2SO4 H3PO4 HO : O HC1O For clarity covalent and pi bonds mentioned in line. pi bond will have two pair of electrons (four electrons) covalent bond will have one pair of electrons. (two electrons) HC104 Lone pair of electrons Bonding electrons