please answer this correctly!! work would help :)Homework Answers
KOH is strong base. So, its pH would be highest
HNO3 is strong acid. So, its pH would be lowest.
NH4+ is conjugate acid.
So, its pH would be less than 7. 2nd lowest as compared to all.
CH3CO2- is conjugate base.
So, its pH would be greater than 7. 2nd highest as compared to all.
KCl is neutral.
Its pH would be 7.00
Answer: A
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please answer this correctly!! work would help :)
19. In which of the following are the...
I need help with number 9 please 9. Using the experimental data for pH and the...
I
need help with number 9 please
9. Using the experimental data for pH and the concentration of the solutions, calculate the K, and Ky for each salt. (SHOW YOUR WORK.) Solution Value of K, or Kb 0.1 ZnCl2 0.1 KAl(SO4)2 0.1 NHACI 0.1 NaC2H302 Value of K, or Kb Solution 0.1 Na2CO3 Part B. Buffer solutions and pH 10. Mass of NaC2H307-3H203.316 11. Measured pH of original buffer solution 4 0 12. Measured pH of buffer + HCI_4.2 13....
Please help. No need for deep explanation just write the correct answer QUESTION 8 Which of...
Please help. No need for deep explanation just write
the correct answer
QUESTION 8 Which of the following statements is true? Dissolving NH4Cl in pure water produces a basic pH Dissolving KCl in pure water produces a basic pH Dissolving KCl in pure water produces an acidic pH Dissolving NH4Cl in pure water produces an acidic pH QUESTION 9 What is the pH of a 1.0*10 MHI solution? HI is a strong acid. (Hint: the pH is not 9.0) pH...
PLEASE ANSWER ALL QUESTIONS 34) Which sequence correctly ranks the following aromatic rings in order of...
PLEASE ANSWER ALL QUESTIONS
34) Which sequence correctly ranks the following aromatic rings in order of increasing rate of reactivity in an electrophilic aromatic substitution reaction? LOCH A) 1<2<3 B) 2 <3 <1 C) 3 <1<2 D) 2 <1<3 35) Derivatives of the compound shown below are currently being examined for their effectiveness in treating drug addiction and metabolic syndrome (J. Med. Chem. 2006, 872). Which sequence ranks the following aromatic rings of this compound in order of increasing reactivity...
5. Which of the following would decrease the K for PbCl2? 2. Lower the pH of...
5. Which of the following would decrease the K for PbCl2? 2. Lower the pH of the solution b. Add a solution of Pb(NO3)2 c. Add a solution of KCI d. Both band e. None of the above the Ky of a compound is constant at constant tempera mperature, 6. In which of the following aqueous solutions would you expect AgBr to have the HIGHES solubility? a. 0.10 M LIBE b. 0.10 M AgNO3 c. 0.20 M NaBr d. 0.15...
Help please and show all work! 2. For each of the following species, write a balanced...
Help please and show all work!
2. For each of the following species, write a balanced chemical equation for its reaction with water, and calculate K, or ko for its conjugate acid or base from the information given. (a) C032-, Ko = 1.8 x 10-4 (6) NH2OH (hydroxylamine), Kb = 1.1 x 10-8 (c) CsHsNH (pyridinium), K. = 5.88 x 10-6
please help me with all the steps. 15. Which of the following mixtures would result in...
please help me with all the steps.
15. Which of the following mixtures would result in a buffered solution? a. Mixing 100.0 mL of 0.100 M HCl with 100.0 mL of 0.100 M NaOH. b. Mixing 100.0 mL of 0.100 M NH3 (K5=1.8 x 10-5) with 100.0 mL of 0.100 M NaOH. c. Mixing 100.0 mL of 0.100 M HCl with 100.0 mL of 0.100 M NH; (K =18x 10 %. d. Mixing 50.0 mL of 0.100 M HCl with...
Please answer this question correctly. I appreciate your help, thank you in advance. 2. A point...
Please answer this question correctly. I appreciate your help,
thank you in advance.
2. A point charge (7.0 pC) is located at the center of a spherical non-conducting surface (radius 2.0 cm), and a charge of 2.0 pC is spread uniformly upon this surface. Use Gauss' law (show work) and determine the magnitude of the electric field 3.0 crn from the point charge (pc-lo-t2 C, k-9 x 10" NnPC
I need help with number 14, 15 , and 16 please! I also provided information in order to solve the problem, but I dont k...
I need help with number 14, 15 , and 16 please! I also
provided information in order to solve the problem, but I dont know
how to do that. thank you!
We were unable to transcribe this imageJ. Uly the experimental data for pH and the concentration of the solutions, calculate the k WORK.) Solution Value of K, or kb 0.1 ZnCl2 Ko= 9.0x10-17 0.1 KAI(SO4)2 Kb = 1.44x10-20 0.1 NH4Cl Ka = 3.80 x 10-9 0.1 NaC H302 Ko=...
please help with numbers 7, 8 and 9 showing work 7. If H.PO, has K. -6.83 x 10', and H.CO, has K, -5.8 x 10", which...
please help with numbers 7, 8 and 9 showing work
7. If H.PO, has K. -6.83 x 10', and H.CO, has K, -5.8 x 10", which is the weaker acid? Circle your answer and explain how you know. (pt) 8. For a solution with pH = 9.74, calculate the following: 3ps) [OH) = pOH - 9. (pes total) a. A solution of a weak acid with concentration - 0.11 M. is 8.8 % ionized. Calculate its K, value b. Calculate...
please answer them all :) (19) In question (12) a catalyst would shift the equilibrium to...
please answer them all :)
(19) In question (12) a catalyst would shift the equilibrium to the (a) left (b) right (C) no shift (d) middle. (20) What will be Kc for SO3 (g) = SO2 (g) + 1/2O2(g). (a) 4.74 (b)0.25 (c) 4.0 (d) 17.0 (e) 0.211 (21) Consider the data below: (14) Consider the reaction: 2N2(g) + O2(g) = 2N20(g) At a certain temperature a 2.00 L flask at equilibrium contains 2.80 X 104 mol of N2 (g),...
I
need help with number 9 please
9. Using the experimental data for pH and the concentration of the solutions, calculate the K, and Ky for each salt. (SHOW YOUR WORK.) Solution Value of K, or Kb 0.1 ZnCl2 0.1 KAl(SO4)2 0.1 NHACI 0.1 NaC2H302 Value of K, or Kb Solution 0.1 Na2CO3 Part B. Buffer solutions and pH 10. Mass of NaC2H307-3H203.316 11. Measured pH of original buffer solution 4 0 12. Measured pH of buffer + HCI_4.2 13....
Please help. No need for deep explanation just write
the correct answer
QUESTION 8 Which of the following statements is true? Dissolving NH4Cl in pure water produces a basic pH Dissolving KCl in pure water produces a basic pH Dissolving KCl in pure water produces an acidic pH Dissolving NH4Cl in pure water produces an acidic pH QUESTION 9 What is the pH of a 1.0*10 MHI solution? HI is a strong acid. (Hint: the pH is not 9.0) pH...
PLEASE ANSWER ALL QUESTIONS
34) Which sequence correctly ranks the following aromatic rings in order of increasing rate of reactivity in an electrophilic aromatic substitution reaction? LOCH A) 1<2<3 B) 2 <3 <1 C) 3 <1<2 D) 2 <1<3 35) Derivatives of the compound shown below are currently being examined for their effectiveness in treating drug addiction and metabolic syndrome (J. Med. Chem. 2006, 872). Which sequence ranks the following aromatic rings of this compound in order of increasing reactivity...
5. Which of the following would decrease the K for PbCl2? 2. Lower the pH of the solution b. Add a solution of Pb(NO3)2 c. Add a solution of KCI d. Both band e. None of the above the Ky of a compound is constant at constant tempera mperature, 6. In which of the following aqueous solutions would you expect AgBr to have the HIGHES solubility? a. 0.10 M LIBE b. 0.10 M AgNO3 c. 0.20 M NaBr d. 0.15...
Help please and show all work!
2. For each of the following species, write a balanced chemical equation for its reaction with water, and calculate K, or ko for its conjugate acid or base from the information given. (a) C032-, Ko = 1.8 x 10-4 (6) NH2OH (hydroxylamine), Kb = 1.1 x 10-8 (c) CsHsNH (pyridinium), K. = 5.88 x 10-6
please help me with all the steps.
15. Which of the following mixtures would result in a buffered solution? a. Mixing 100.0 mL of 0.100 M HCl with 100.0 mL of 0.100 M NaOH. b. Mixing 100.0 mL of 0.100 M NH3 (K5=1.8 x 10-5) with 100.0 mL of 0.100 M NaOH. c. Mixing 100.0 mL of 0.100 M HCl with 100.0 mL of 0.100 M NH; (K =18x 10 %. d. Mixing 50.0 mL of 0.100 M HCl with...
Please answer this question correctly. I appreciate your help,
thank you in advance.
2. A point charge (7.0 pC) is located at the center of a spherical non-conducting surface (radius 2.0 cm), and a charge of 2.0 pC is spread uniformly upon this surface. Use Gauss' law (show work) and determine the magnitude of the electric field 3.0 crn from the point charge (pc-lo-t2 C, k-9 x 10" NnPC
I need help with number 14, 15 , and 16 please! I also
provided information in order to solve the problem, but I dont know
how to do that. thank you!
We were unable to transcribe this imageJ. Uly the experimental data for pH and the concentration of the solutions, calculate the k WORK.) Solution Value of K, or kb 0.1 ZnCl2 Ko= 9.0x10-17 0.1 KAI(SO4)2 Kb = 1.44x10-20 0.1 NH4Cl Ka = 3.80 x 10-9 0.1 NaC H302 Ko=...
please help with numbers 7, 8 and 9 showing work
7. If H.PO, has K. -6.83 x 10', and H.CO, has K, -5.8 x 10", which is the weaker acid? Circle your answer and explain how you know. (pt) 8. For a solution with pH = 9.74, calculate the following: 3ps) [OH) = pOH - 9. (pes total) a. A solution of a weak acid with concentration - 0.11 M. is 8.8 % ionized. Calculate its K, value b. Calculate...
please answer them all :)
(19) In question (12) a catalyst would shift the equilibrium to the (a) left (b) right (C) no shift (d) middle. (20) What will be Kc for SO3 (g) = SO2 (g) + 1/2O2(g). (a) 4.74 (b)0.25 (c) 4.0 (d) 17.0 (e) 0.211 (21) Consider the data below: (14) Consider the reaction: 2N2(g) + O2(g) = 2N20(g) At a certain temperature a 2.00 L flask at equilibrium contains 2.80 X 104 mol of N2 (g),...
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