Homework Answers
Strong acid: HNO3, H2SO4, HCl ( almost 100% dissociation in aqeous solution to give large amount of H+ ion)
Weak acid: HF, HCN, HNO2, H2CO3, HSO4-, HCO3- (poor dissociation to produce less H+ in aqeous solution)
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3 attempts left Check my work Be sure to answer all parts. Which of the following...
3 attempts left Check my work Be sure to answer all parts. Rank the members of...
3 attempts left Check my work Be sure to answer all parts. Rank the members of each set of compounds in order of increasing ionic character of their bonds. (a) HBr, HCI, HI O HCI < HBr <HI HBr <HCI <HI HI <HBr <HCI (b) H40, CH4, HF O H,0 <CH, <HF HF<H,0 <CH CH, <H2O <HF (c) SCI, PCI3, SiC14 SCI, <PCI, <SICIA SICI, < PCI, <SC12 PCI, <SCI, < SICH < Prev 14 of 14 !!! Next
36) Which one of the following is not a strong acid? (or a weak electrolyte?) a) HNO )HCI HI )HF e) HCIO Answer: 37) The is the conjugate species that remains after an acid donates a proton is ca...
36) Which one of the following is not a strong acid? (or a weak electrolyte?) a) HNO )HCI HI )HF e) HCIO Answer: 37) The is the conjugate species that remains after an acid donates a proton is called its conjugate base. What base of the hydronium ion, HO? B)HO C)HO D)H E HO'has no conjugate base. Answer: acid-base pair? 38) For the reaction shown below, which of the following is a conjugate acid A)CHsN, H:0 B) CsH,N, CsH,NH' C)...
3 attempts left Check my work Be sure to answer all parts. Give the amino acid...
3 attempts left Check my work Be sure to answer all parts. Give the amino acid sequence of an octapeptide that contains the amino acids Ile, Thr, Gin (2 equiv)| Leu, Asp, Glu, Ala, and forms the following fragments when partially hydrolyzed with HCI: Ala-Gin-Asp-Ile, Thr-Gln-Ala, and Asp-Ile-Glu-Leu. - - - - - -
Saved 3 attempts left Check my work Be sure to answer all parts. Consider the following...
Saved 3 attempts left Check my work Be sure to answer all parts. Consider the following reaction: 2MnO4 (aq) + 10CT (aq) + 16H(aq) - 2Mn2+(aq) + 5Ch(g) + SH,0(1) (a) Which species is oxidized? (b) Which species is reduced? (c) What is the oxidizing agent? (d) What is the reducing agent? Oxidized Reduced Oxidizing Agent Reducing Agent MnO, (aq) (select) (select)) (select) (select) Crag select) select) (select)) (select) (select (select (select) (select) lag) In- (aq) (select) select) (select) (select)
3 attempts left Check my work Be sure to answer all parts. Complete the following table...
3 attempts left Check my work Be sure to answer all parts. Complete the following table by filling in the formula of the ionic compound derived from the cations on the left and each of the anions across the top. Br HCO3 so32-
3 attempts left Check my work Be sure to answer all parts. Calculate the K, of...
3 attempts left Check my work Be sure to answer all parts. Calculate the K, of a weak acid if a 0.019M solution of the acid has a pH of 3.09 at 25°C. x 10 (Enter your answer in scientific notation.)
3 atempi 3 attempts left Check my work Be sure to answer all parts. Please report...
3 atempi 3 attempts left Check my work Be sure to answer all parts. Please report your answer to the correct number of significant figures. Determine the Ky of a weak base if a 0.613 M aqueous solution of the base at 25°C has a pH of 10.88. | x 10 (Enter your answer in scientific notation.)
3 attempts left Check my work Be sure to answer all parts. From the values of...
3 attempts left Check my work Be sure to answer all parts. From the values of AH and AS, predict which of the following reactions would be spontaneous at 24°C: reaction A: AH = 10.5 kJ/mol, AS = 30.0 J/K mol: spontaneous nonspontaneous impossible to tell mol, reaction B: AH=1.8 kJ/mol, AS = -113 J/ K O spontaneous nonspontaneous impossible to tell If either of the reactions is nonspontaneous, can it(they) become spontaneous? yes, reaction A can become spontaneous yes,...
3 attempts left Check my work Be sure to answer all parts. Answer the following questions...
3 attempts left Check my work Be sure to answer all parts. Answer the following questions about diethyl ether (C4H100, molar mass of 74.1 g/mol), the first widely used general anesthetic. Diethyl ether can be prepared from ethanol according to the following balanced equation. 2 C2H600→ CH100(1) + H2O() ethanol diethyl ether a. How many grams of diethyl ether are formed from 0.55 mol of ethanol? 0 g diethyl ether b. How many grams of diethyl ether are formed from...
i want answer to all questions please Answer: 29) Consider the following generalized buffer solution equilibrium: When a small amount of a strong base such as sodium hydroxide is added to the so...
i want answer to all questions please
Answer: 29) Consider the following generalized buffer solution equilibrium: When a small amount of a strong base such as sodium hydroxide is added to the solution, which of the four species shown would experience an increase in concentration? A) BH B)H C) HO D)B E None of the species would increase in concentration. Answer: ( 30) What is true about a solution whose pH is less than 7 at 25°C? A) It has...
3 attempts left Check my work Be sure to answer all parts. Rank the members of each set of compounds in order of increasing ionic character of their bonds. (a) HBr, HCI, HI O HCI < HBr <HI HBr <HCI <HI HI <HBr <HCI (b) H40, CH4, HF O H,0 <CH, <HF HF<H,0 <CH CH, <H2O <HF (c) SCI, PCI3, SiC14 SCI, <PCI, <SICIA SICI, < PCI, <SC12 PCI, <SCI, < SICH < Prev 14 of 14 !!! Next
36) Which one of the following is not a strong acid? (or a weak electrolyte?) a) HNO )HCI HI )HF e) HCIO Answer: 37) The is the conjugate species that remains after an acid donates a proton is called its conjugate base. What base of the hydronium ion, HO? B)HO C)HO D)H E HO'has no conjugate base. Answer: acid-base pair? 38) For the reaction shown below, which of the following is a conjugate acid A)CHsN, H:0 B) CsH,N, CsH,NH' C)...
3 attempts left Check my work Be sure to answer all parts. Give the amino acid sequence of an octapeptide that contains the amino acids Ile, Thr, Gin (2 equiv)| Leu, Asp, Glu, Ala, and forms the following fragments when partially hydrolyzed with HCI: Ala-Gin-Asp-Ile, Thr-Gln-Ala, and Asp-Ile-Glu-Leu. - - - - - -
Saved 3 attempts left Check my work Be sure to answer all parts. Consider the following reaction: 2MnO4 (aq) + 10CT (aq) + 16H(aq) - 2Mn2+(aq) + 5Ch(g) + SH,0(1) (a) Which species is oxidized? (b) Which species is reduced? (c) What is the oxidizing agent? (d) What is the reducing agent? Oxidized Reduced Oxidizing Agent Reducing Agent MnO, (aq) (select) (select)) (select) (select) Crag select) select) (select)) (select) (select (select (select) (select) lag) In- (aq) (select) select) (select) (select)
3 attempts left Check my work Be sure to answer all parts. Complete the following table by filling in the formula of the ionic compound derived from the cations on the left and each of the anions across the top. Br HCO3 so32-
3 attempts left Check my work Be sure to answer all parts. Calculate the K, of a weak acid if a 0.019M solution of the acid has a pH of 3.09 at 25°C. x 10 (Enter your answer in scientific notation.)
3 atempi 3 attempts left Check my work Be sure to answer all parts. Please report your answer to the correct number of significant figures. Determine the Ky of a weak base if a 0.613 M aqueous solution of the base at 25°C has a pH of 10.88. | x 10 (Enter your answer in scientific notation.)
3 attempts left Check my work Be sure to answer all parts. From the values of AH and AS, predict which of the following reactions would be spontaneous at 24°C: reaction A: AH = 10.5 kJ/mol, AS = 30.0 J/K mol: spontaneous nonspontaneous impossible to tell mol, reaction B: AH=1.8 kJ/mol, AS = -113 J/ K O spontaneous nonspontaneous impossible to tell If either of the reactions is nonspontaneous, can it(they) become spontaneous? yes, reaction A can become spontaneous yes,...
3 attempts left Check my work Be sure to answer all parts. Answer the following questions about diethyl ether (C4H100, molar mass of 74.1 g/mol), the first widely used general anesthetic. Diethyl ether can be prepared from ethanol according to the following balanced equation. 2 C2H600→ CH100(1) + H2O() ethanol diethyl ether a. How many grams of diethyl ether are formed from 0.55 mol of ethanol? 0 g diethyl ether b. How many grams of diethyl ether are formed from...
i want answer to all questions please
Answer: 29) Consider the following generalized buffer solution equilibrium: When a small amount of a strong base such as sodium hydroxide is added to the solution, which of the four species shown would experience an increase in concentration? A) BH B)H C) HO D)B E None of the species would increase in concentration. Answer: ( 30) What is true about a solution whose pH is less than 7 at 25°C? A) It has...
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