True or False? If a solution having a pH = 7 is diluted 10 times by...
True or False?
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If a solution having a pH = 7 is diluted 10 times by adding water, the new pH is 8. (correct answer: F)
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NH3 is a Lewis base. (correct answer: T)
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Al3+ is a Lewis acid. (correct answer: T)
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BF3 is a Lewis acid (correct answer: T)
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OH- is a Lewis base. (correct answer: T)
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BF3 is a Brönsted acid. (correct answer: F)
Please provide conceptual explanations for each
Homework Answers
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True or False?
If a solution having a pH = 7 is diluted 10 times by...
1. In the reaction between BF3 and NH3, NH3 is the A. Lewis base B. Lewis...
1. In the reaction between BF3 and NH3, NH3 is the A. Lewis base B. Lewis acid C. Lewis structure 2. HCl and HNO3 have the same strength in aqueous solutions. This is an example of the leveling effect. a) True b) False 3. In the reaction between BF3 and NH3, NH3 is the A. nucleophile B. electrophile C. protophile 4. An amphoteric substance can act as an acid or base a) True b) False 5. For a solution that...
all questions please WER. Write the word or phrase that best completes each statement or answer...
all questions please
WER. Write the word or phrase that best completes each statement or answer the question KT ANSWER, W, 1.2) In order for the reaction 1. the Ka of HA must be for the reaction HAHSO3" -A- H2SO to have an equilibrium constant K (greater, less than the Ka of HSOY. 12) 3) The pH of a 0.045 M KOH solution MULTIPLE CHOICE Choose the Choose the one alternative that best completes the statement or answers the question....
Answer by true or false - if false correct the statement. ( 7-) The mixture of...
Answer by true or false - if
false correct the statement.
( 7-) The mixture of equi 0.2M solution of sodium acetate and acetic acid has lower buffer capacity than the mixture of equi 0.5M NaCl and HCI. 8- Electron pair donor) is the definition of Lewis acid. false= acceptor if acid donor if base (9-) Ka of NH4OH is 5.376x10-10. (10- pH for 0.1 M Acetic acid ( Ka = 1.8 x10 -S) is 1.73.
M. 7. What is true about the pH of a solution with a hydrogen ion concentration...
M. 7. What is true about the pH of a solution with a hydrogen ion concentration of 7.3 x 10 The pH is 3.7 and is acidic. The pH is 8.1 and has excess H in solution. 73000 Bongo C. The pH is 8.1 and has excess OH' in solution. d. The pH is 9.0 and it is basic. e. None of the above answers are correct. A water solution that accumulates CO2 gas will have a tendency to a....
Question II- Answer by False or True , if a statement is False , please correct...
Question II- Answer by False or True , if a statement is False , please correct it. 1- H2PO4 is a conjugate base of HPO42 and also amphoteric. 2- Benzoic acid( Ka = 6.5 x105) can be used to prepare efficient buffer of pH =6. 3- If excess NaOH dissolves Al(OH)only in a Mixture of Fe(OH)3/ Al(OH)3 this means that Fe(OH)3 is amphoteric substance. 4- Addition of NH4 CI(CI,NH4+) to a solution of NH4OH (NH4+, OH) will enhances its ionization....
I am most concerned with number 8 7. Identify the conjugate acid: NH3(ag) + HO(aq) =NH4*(ag)...
I am most concerned with number 8
7. Identify the conjugate acid: NH3(ag) + HO(aq) =NH4*(ag) OH (ag) a. NH3 b. NH4 с. НаО d. OН 8. A 50.0mL 0.100M weak acid is titrated with 0.100M NaOH and has K=1.6x10-5. Which of the following is true given the volume of N2OH added? (Hint: 25mL of N2OH added would be 2 of the equivalence point and 50mL of N2OH added would be the equivalence point) a. At 25.0mL added, pH=4.80, and...
Question Completion Status: QUESTION 10 Select the Lewis acid and Lewis base in this reaction. Cu2+(aq)...
Question Completion Status: QUESTION 10 Select the Lewis acid and Lewis base in this reaction. Cu2+(aq) + 6 NH3(aq) - Cu(NH3162 (aq) Cu2+ is the Lewis acid, and NH3 is the Lewis base, NH3 is a base, but there is no acid NH3 is the Lewis acid, and Cu?" is the Lewis base None of the above QUESTION 11 The following combination of species will result in buffer solution a. HCO3 and cog-2 True False QUESTION 12 The complex lon...
10. For an aqueous solution labeled "0.10 M potassium bromide," A) the pH is greater than...
10. For an aqueous solution labeled "0.10 M potassium bromide," A) the pH is greater than 7. B) the pH = 13. D) the pH is less than 7. E) the pH = 7. C) the pH = 1. 11. For a 0.10 M solution of a weak acid, HA, with pKa = 6, which of the following is true? A) [HA] =[A-] B) [HA] does not equal [H3O+] C) [HA] =[H3O] D) [HA] = K E) [HA] = 0...
Concept Questions: 1) Determine whether the following statements are True or False. a. b. A solution...
Concept Questions: 1) Determine whether the following statements are True or False. a. b. A solution with a pH of 5 is a basic solution. HCl (aq) is an Arrhenius acid HCI, HNO3 and H2SO4 are all strong acids. As the concentration of H* in water increases the concentration c. d. of OH' stays the same. Calculating pH, POH, (OH) and (H30*) 2) A solution of HC2H302 has a concentration of 0.00045 MH* what is the pH of the solution?...
Part F Calculate pH for this strong base solution: 15.0 mL of 1.10x10-2 M Ca(OH), diluted...
Part F Calculate pH for this strong base solution: 15.0 mL of 1.10x10-2 M Ca(OH), diluted to 420.0 mL Express your answer using three decimal places. I VOAED ? pH= Previous Answers Request Answer Submit X Incorrect; Try Again; 2 attempts remaining P Pearson Terms of Use P htr roconred
all questions please
WER. Write the word or phrase that best completes each statement or answer the question KT ANSWER, W, 1.2) In order for the reaction 1. the Ka of HA must be for the reaction HAHSO3" -A- H2SO to have an equilibrium constant K (greater, less than the Ka of HSOY. 12) 3) The pH of a 0.045 M KOH solution MULTIPLE CHOICE Choose the Choose the one alternative that best completes the statement or answers the question....
Answer by true or false - if
false correct the statement.
( 7-) The mixture of equi 0.2M solution of sodium acetate and acetic acid has lower buffer capacity than the mixture of equi 0.5M NaCl and HCI. 8- Electron pair donor) is the definition of Lewis acid. false= acceptor if acid donor if base (9-) Ka of NH4OH is 5.376x10-10. (10- pH for 0.1 M Acetic acid ( Ka = 1.8 x10 -S) is 1.73.
M. 7. What is true about the pH of a solution with a hydrogen ion concentration of 7.3 x 10 The pH is 3.7 and is acidic. The pH is 8.1 and has excess H in solution. 73000 Bongo C. The pH is 8.1 and has excess OH' in solution. d. The pH is 9.0 and it is basic. e. None of the above answers are correct. A water solution that accumulates CO2 gas will have a tendency to a....
Question II- Answer by False or True , if a statement is False , please correct it. 1- H2PO4 is a conjugate base of HPO42 and also amphoteric. 2- Benzoic acid( Ka = 6.5 x105) can be used to prepare efficient buffer of pH =6. 3- If excess NaOH dissolves Al(OH)only in a Mixture of Fe(OH)3/ Al(OH)3 this means that Fe(OH)3 is amphoteric substance. 4- Addition of NH4 CI(CI,NH4+) to a solution of NH4OH (NH4+, OH) will enhances its ionization....
I am most concerned with number 8
7. Identify the conjugate acid: NH3(ag) + HO(aq) =NH4*(ag) OH (ag) a. NH3 b. NH4 с. НаО d. OН 8. A 50.0mL 0.100M weak acid is titrated with 0.100M NaOH and has K=1.6x10-5. Which of the following is true given the volume of N2OH added? (Hint: 25mL of N2OH added would be 2 of the equivalence point and 50mL of N2OH added would be the equivalence point) a. At 25.0mL added, pH=4.80, and...
Question Completion Status: QUESTION 10 Select the Lewis acid and Lewis base in this reaction. Cu2+(aq) + 6 NH3(aq) - Cu(NH3162 (aq) Cu2+ is the Lewis acid, and NH3 is the Lewis base, NH3 is a base, but there is no acid NH3 is the Lewis acid, and Cu?" is the Lewis base None of the above QUESTION 11 The following combination of species will result in buffer solution a. HCO3 and cog-2 True False QUESTION 12 The complex lon...
10. For an aqueous solution labeled "0.10 M potassium bromide," A) the pH is greater than 7. B) the pH = 13. D) the pH is less than 7. E) the pH = 7. C) the pH = 1. 11. For a 0.10 M solution of a weak acid, HA, with pKa = 6, which of the following is true? A) [HA] =[A-] B) [HA] does not equal [H3O+] C) [HA] =[H3O] D) [HA] = K E) [HA] = 0...
Concept Questions: 1) Determine whether the following statements are True or False. a. b. A solution with a pH of 5 is a basic solution. HCl (aq) is an Arrhenius acid HCI, HNO3 and H2SO4 are all strong acids. As the concentration of H* in water increases the concentration c. d. of OH' stays the same. Calculating pH, POH, (OH) and (H30*) 2) A solution of HC2H302 has a concentration of 0.00045 MH* what is the pH of the solution?...
Part F Calculate pH for this strong base solution: 15.0 mL of 1.10x10-2 M Ca(OH), diluted to 420.0 mL Express your answer using three decimal places. I VOAED ? pH= Previous Answers Request Answer Submit X Incorrect; Try Again; 2 attempts remaining P Pearson Terms of Use P htr roconred
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