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Which of the following equations are incorrect? Question 14 Not yet answered Marked out of 10.00...
Which of the following equations are true for all aqueous solutions, at any temperature? Select all that apply. pH + pOH = 14.00 [H+] × [OH-] = Kw [H+] × [OH-] = 1.0×10-14 pH = pOH Ka × Kb = Kw Ka × Kb = 1.0×10-14
Question 9 Not yet answered Marked out of 1.0 Flag question Which of the following compounds is an ester? Select one: 0 0 0 O 0 0 Question 10 Not yet answered Marked out of 1.0 P Flag question How many isomers, excluding cyclic compounds and any enantiomers, are possible for C, H, Br? OOO Select one: O a. 12 O b. 11 O c. 14 O d. 9 o e. 13
Question 4 The pH is defined as Not yet answered Marked out of 1.00 P Flag question Select one: 0 -log[H] o 10[++] O 10-[H+] O log[H+] Question 5 If the pol of a solution is 4, what is its pH? Not yet answered Marked out of 1.00 Select one: o 7 O 10 p Flag question
Which is the product from the following reaction? Question 7 Not yet answered Marked out of 1.00 2) H20 Select one: O b. — ОН СН2СН2СН NH2 OH CHỊCHANH Question 8 Not yet answered What is the order of decreasing reactivity toward nucleophilic acyl substitution for these carboxylic acid derivatives (most reactive first)? Marked out of CH3COCH2CH2CCI CHONH, CH3COCCH; Select one: O a. II, IV, Ob.ll, c. IV, I, II, III d. I, II, III, IV
Quiz navigation Question 1 A half equation always contains... Not yet answered Marked out of 1.00 Select one: protons Finish attempt... electrons P Flag question Time left 0:04:53 water spectator ions Question 2 In basic solution, what can you always add in order to balance a half-equation? Not yet answered Marked out of 1.00 P Flag question Select one: OH and Nat Hi and H2O O OH' and H20 H* and OH When half equations are balanced against each other,...
Equations pH=-log[H3O+]; pOH= -log[OH]; pKw=14.00=pH+POH; Ka-[H3O+][A-[HA]; Kb=[BH+][OH-)[B); pKa=-log Ka; Ka. Kb=Kw Constants Ka (HS-)=1x10-19; Ka (HF) 7.2x10-4; Ka ([Al(H20).]+)7.9x10-6; Ka (H3PO4)=7.5x10-2: Ka (HPO42-) =3.6x10-13; Ka (HCI)=Huge; Ka(Na+)=tiny; Ka(Cl-)tiny; Kb(NH3)=1.8x10-5; Kw=1x10-14 1) Calculate the pH of aqueous 0.25M HCl and 0.25M HF solutions. 2) Complete the following tables for aqueous solutions of conjugate acid-base pKa pKb Kb 1.3x10-4 35 3) Complete the following table for aqueous solutions DHL TH+) OH) pOH 1x102 4) Calculate the pH of aqueous 0.15M Ba(OH)2 and...
Question 1 Not yet answered Marked out of 1.00 p Flag question Which of the following is result of decisions based on inaccurate information? Select one: a. Delivering products to customers on time O b. Meeting customers' demands O c. All the answers d. Misallocation of resources Question 2 Not yet answered Marked out of 1.00 p Flag qu In digital firms, Core business processes are accomplished digitally Select one: a. True о b. FALSE Previous page f Question 7...
Question 7 Not yet answered Marked out of 10.00 P Flag question Which of the following represents a spontaneous system? Select one or more: - A. AS sys=-39 J/K/mol, ASgurr --30 J/K/mol * B. AS sys=12 J/K/mol, AS surr=-19 J/K/mol • C. AS sys=-22.2 J/K/mol, AS surr=39.3 J/K/mol DAS 24 J/K/mol, AS - -32 J/K/mol
Question 4 Not yet answered Marked out of 1.0 P Flag question Which of the series below indicates the correct relationship for the boiling points of the shown compounds? Select one: O a. H2S < CH3CH2CH2CH3 < SiH4 < H2O O b. SiH4 < CH3CH2CH2CH3 < H2S < H₂O O C. CH3CH2CH2CH3 < H2S < SiH4 < H20 O d. SiH4 < H2S < CH3CH2CH2CH3 < H2O o e. H2S < SiH4 < CH3CH2CH2CH3 < H20 Question 6 Not yet...
Which of the following best describes a person's self-concept? Question 19 Not yet answered Marked out of 100 P Flag question Select one: o a. Self-esteem O b. Personality C. Self-actualization d. Mental image Question 20 Not yet answered is the person's subjective view of his or her physical appearance. Marked out of 1.00 P Flag question Select one: a. Self-concept O b. Self-esteem C. Identity diffusion d. Body image