Question
Use the following acid ionization constants to identify the correct decreasing order of base strengths for...
Use the following acid ionization constants to identify the correct decreasing order of base strengths for the conjugate bases.
HF: Ka = 7.2 ´ 10-4
HCN: Ka = 6.2 ´ 10-10
HNO2: Ka = 4.5 ´ 10-4
A. NO2- > F->CN-
- B. CN- > NO2- > F-
- C. F- > NO2- > CN-
- D. NO2- > CN- > F-
- E. F-> CN- > NO2-
- F. CN- > F->NO2
-
Answers
Ka is directional proportional to acidic strength
so Higher the Ka stronger the acid
stronger the acid weaker its conjugate base.
so igher Ka have lower conjugate base strength.
order as follows
answer = option B = CN- > NO2- > F-
Similar Solved Questions
1 answers
Question 1 (1 point) Saved You have two objects that have an, electrostatic attraction. We therefore...
Question 1 (1 point) Saved You have two objects that have an, electrostatic attraction. We therefore know that the two objects MUST have the same net charge. ) True False Question 2 (1 point) Determine the direction of the field at point a. Up Down Left Right We were unable to transcribe this imageQ...
1 answers
Recall the following definition: For two sets A and B, the difference set A \ B...
Recall the following definition: For two sets A and B, the difference set A \ B is the set consisting of those objects that are members of A but not members of B: A \ B = {x ∈ A : x is NOT ∈ B}. Please provide a thorough answer to the following questions. (a) Prove or disprove: For all set...
1 answers
Part l: Assignment and Variables Answer only one question from t this part (1 or 2)...
Part l: Assignment and Variables Answer only one question from t this part (1 or 2) fence is 30 T does not know how to change feet to meters, so he asked you to farm's length and width in feet and calculates and prints the cost Note: One foot is equal to 0.3048 meter. arm: A farmer wants to put ...
1 answers
Matering M o de + * STUOGO * 2002) pdf c o m Download 11 28....
Matering M o de + * STUOGO * 2002) pdf c o m Download 11 28. Choose the substance with the highest surface tension. A) HOCH2CH2OH B) CHF2 C) CH3CH21 D) CH3CH2CH2OH E) CH3CH2CH3...
1 answers
Use the data on serum T3 concentrations from the experiments with chickens in Exercise 2.3. Treatment...
Use the data on serum T3 concentrations from the experiments with chickens in Exercise 2.3. Treatment Serum T3, (ng/dl) x 10(-1) Premolt 90.09 90.45 99.38 73.56 74.39 Fasting 98.81 103.55 115.23 129.06 117.61 60g bran 197.18 207.31 177.5 226.05 222.74...
1 answers
An electromagnetic wave is incident on an interface between two materials at Brewster angle. The normal...
An electromagnetic wave is incident on an interface between two materials at Brewster angle. The normal of the interface is a = -0.8âx + 0.6ây and the electric field of the wave is (T) = (9âx – 22.5ây)e-j(4x+1.6y) V/m. a) Find the Brewster angle. b) If ni = 3.0, determi...
1 answers
What is the area of a circle with circumference of 6.28?
What is the area of a circle with circumference of 6.28?...
1 answers
Assume the following information for company SDA on 31st December 2018, before the preparation of the...
Assume the following information for company SDA on 31st December 2018, before the preparation of the adjusted trial-balance: Machinery (€) 38,000 Wages payable 1,300 Accumulated depreciation: machinery 6,000 Bank deposits 12,000 Unearned revenue 2,100 Prepaid insurance 3,600 Accounts receivabl...
1 answers
How do you write 0.075 in scientific notation?
How do you write 0.075 in scientific notation?...
1 answers
Despite an in-depth search you cannot find a threaded commercial fastener that meets your design requirements....
Despite an in-depth search you cannot find a threaded commercial fastener that meets your design requirements. As you begin the design process what elements of the design would you attempt to design conforming to a standars (ASTM, SAE, etc.)?...
1 answers
Suppose the following data represent the heights (in inches) of a random sample of males: 6565, 6767, 6969, 7070, 7272, 7373. Which of the following could be a possible bootstrap sample? (a)...
Suppose the following data represent the heights (in inches) of a random sample of males: 6565, 6767, 6969, 7070, 7272, 7373. Which of the following could be a possible bootstrap sample? (a) 65 comma 69 comma 69 comma 74 comma 72 comma 7...
1 answers
1. a) If one were to decrease the enzyme concentration by half, how would this affect...
1. a) If one were to decrease the enzyme concentration by half, how would this affect the Vmaxvalue? Explain why this is so. What assumption are we making in regards to the relative amounts of substrate to enzyme? b) Is the turnover rate (kcat value) of an enzyme expected to change if the enzyme con...
1 answers
Suppose Crow Sporting Goods Company reported the following data at July 31, 2018 , with amounts...
Suppose Crow Sporting Goods Company reported the following data at July 31, 2018 , with amounts in thousands: Use these data to prepare Crow Sporting Goods Company's single-step income statement for the year ended July 31, 2018 ; statement of retained earnings for the year ended July 31, 2018 ;...
1 answers
45% A 450 KVA, 2080 V, 50 Hz, 6-pole, three-phase, Y-connected, synchronous motor has a synchronous...
45% A 450 KVA, 2080 V, 50 Hz, 6-pole, three-phase, Y-connected, synchronous motor has a synchronous impedance of 0.5+ j15 Ohm/phase, and rotational loss is 18 kw 3, Determine: a. The excitation voltage (15%) b. The power angle (15%) c. The power developed when the motor is fully loaded at 0.8666 PF ...
1 answers
Consider the case of Marston Manufacturing Company: Marston Manufacturing Company is considering a project that requires...
Consider the case of Marston Manufacturing Company: Marston Manufacturing Company is considering a project that requires an investment in new equipment of $3,570,000. Under the new tax law, the equipment is eligible for 100% bonus depreciation at t = 0 so the equipment will be fully depreciated at t...
1 answers
1. Autoimmunity is most likely to occur when A. An antigen impinges upon the immune system...
1. Autoimmunity is most likely to occur when A. An antigen impinges upon the immune system that crossreacts with a peripheral self-antigen. b. complement is activated c. toxins are produced by bacteria, causing tissue damage. d. an infection occurs that is prolonged. 2. What is (are) common to both ...
1 answers
You are expected to observe different customers in a grocery store ( or any socially distancing...
You are expected to observe different customers in a grocery store ( or any socially distancing environment that you are comfortable with) and tell us what you observed as their decision making process. What behaviors did you expect and what surprised you? Was there a difference among genders, age g...
1 answers
Question 33 (1 point) Your friend hates snakes. They see them move and slither around and...
Question 33 (1 point) Your friend hates snakes. They see them move and slither around and feel frightened and "grossed out". They then observe a rat and feel the exact same way. When you ask them to describe what it is about the rat that frightens them they say "Everything!! But that tai...