Q: CH3 -N' O,N- NH2 NH2 CI NH2 CH30 NH2
A: The basicity of any molecule is directly proportional to the tendency of the molecule to donate…
Q: CH3 NH2 NH2 CI- NH2 CH30- -NH2 'H
A: A molecule is said to be a base if it can donate its lone pair of electrons.More the tendency to…
Q: HO. pka 3.1 NH2 p ka I1.03
A: Applying concept of PKa and PH relationship with structure of compounds.
Q: HNO3(aq) + Ba(OH)2(aq) ->
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Q: 19M NaOH would be extremely acidic. True False
A: Given 19M NaOH would be extremely acidic.
Q: Which is a stronger base: HO- or -NH2? (The pKa of H2O is 15.7; the pKa of NH3 is 36.)
A: The strength of a base is inversely related to the strength of its conjugated acid. The weaker the…
Q: Fumaric acid and malonic acid are both diprotic acids. a. Sketch the general shape of the curve for…
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Q: +) CH30 K (a) Methanol EtO-K+ (b) Ethanol EtO-K+ (c) Ethanol
A: In this question, we have to find out the correct answer of given problem by the help of the…
Q: Explain each the acidity of 0.1M acetic acid, 0.1M chloroacetic acid and 0.1M trichloroacetic acid…
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Q: For each of the following compounds, draw the form that predominates at pH = 3, pH = 6, pH = 10, and…
A: Given pH values are 3, 6, 10, and 14. The compounds with their pKa values are represented as…
Q: Select the Ka value that matches the following dissociation reaction. Make sure to click on the…
A: Given equilibrium reaction: H2AsO4−1 + H2O ⇌ HAsO4−2+ H3O+ , Ka = ?
Q: Acid Ka A HNO2 4.50×10-4 B HClO 3.50×10-8 (1) The acid with the smallest value of pKa is…
A: (1) Ka of HNO2 = 4.50×10-4 Ka of HClO = 3.50×10-8 Equation: pKa = - log Ka For HNO2 : pKa = -…
Q: In the following reaction, identify the Lewis acid. (d) NH3 + CH3CO2H NH4 + CH3CO2 (a) CH;CO2 (b)…
A: The reaction taking place is given as, => NH3 + CH3CO2H -----> NH4+ + CH3CO2-
Q: Given the following acids and Ka values: HClO4 HC2H3O2 HCN HF 1 107 1.76 10–5 4.93 10–10 3.53…
A: As we know that higher the Ka value, more will be the strength of acid. The numerical value of Ka…
Q: Weak acids do not dissociate completely in water and have pKa values of - 3 or higher. Which of the…
A: Given acids, A. HNO3 B. HCl C. H2SO4 D. H2CO3
Q: 9. NH-acidic properties are shown by? A. Sulfacyl sodium B. Sodium barbital C. Theobromine D.…
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Q: Below is a compound in its neutral from, draw the form that would predominate at pH 7.4 H N. хонг
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Q: Predict which member of each pair will be more acidic. Explain your answers.…
A: Primary alcohols are stronger acids than secondary alcohols which are stronger than tertiary…
Q: proton rank Ha на CN OH
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Q: For each of the pairs given, predict which acid is stronger ) H2Se and H2Te ) HCIO2 and HCIO3 ii)…
A: i) H2Se and H2Te The given acids are diprotic acids. The size of Se is smaller than Te, as atomic…
Q: Find the pKa of the acids (or conjugate acids of the given base) below. Then, draw the form that is…
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Q: Arrange the following compound in order of increasing acidity. Type your answers in the blanks…
A: Electron donating group decreases the acidic character while electron withdrawing group increases…
Q: Indicate whether a carboxylic acid (RCOOH) with a pKa value of 4.5 has more charged molecules or…
A: Henderson-Hasselbalch equation explains the relationship between pH of solution and pKa of acid. For…
Q: This question contains 3 Parts. Provide your answers to the following questions. Read the questions…
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Q: What is the correct rank of the following compounds in order of decreasing acidity? NH2 HO II IV…
A: Acidity of any molecule is directly proportional to the stability of -ve charge formed after…
Q: hich of the following bases has the greatest degree of ionization? ammonia Kb=1.8x10⁻⁵ pyridine…
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Q: Ethylamine (C2H5NH2) has a Kb value of 4.5x10–4. Calculate the pH of a solution that is 0.00298 M…
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Q: Which of the following is the least acidic compound? IV Multiple Choice II IV
A: The order of the acidity from lower to higher are: III<IV<I<II
Q: Indicate if each set of lone pair electrons on the heteroatoms are basic or not basic. N. :0
A: If lone pair is not a part of resonance so it will be basic.
Q: assign the acid its appropriate pKa
A: 2-oxopropanoic acid is a strong acid than 3-oxobutanoic acid because of the electron withdrawing…
Q: According to hard-soft acid-base theory, which pair below would preferentially bind to PbS surface?…
A: A species is a hard or soft, acid or base is decided by its size and charge. It depends on its…
Q: Draw the form of the following compound that will predominate at pH 13. pKa 1.84 NH2 pКа 9.13
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Q: Solving reactions (Aldehydes and Ketones)
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Q: Draw the form of the following compound that will predominate at pH 13. OH pKa 1.84 NH2 pКa9.13
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Q: Tripolidine possesses two nitrogen atom(s), although only one of them is available to function as a…
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Q: A structure with a stable conjugate base will be more acidic. Ha is more acidic than Hb. Choose the…
A: Greater the stability of conjugate base formed after removal of proton, more will be the acidic…
Q: Select the stronger acid in set given. Q.) Lactic acid (Ka 8.4 x 10-4) and ascorbic acid (Ka 7.9 x…
A: Strong acid is he one which dissociates completely. Ka tells about the extent of dissociation of…
Q: After creating a graph of pH versus log([Hln]/[In-1), the following trendline is obtained. y =…
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Q: Which one of the following will be most acidic and why? 2-Chlorobutanoic acid, 4-Chlorobutanoic…
A: 2-Chlorobutanoic acid is most acidic in nature.
Q: D. H,O, H* 9. Н, Pt 10 cold dilute neutral KMNO4 H3C CH3 11 1. mCPBA 2. Н,О, Н" 12 13 mCPBA
A: Alkene double bond shows addition Reaction due to presence of pi electron density
Q: Chemistry
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Q: Choose the pair that does not constitute a conjugate acid-base pair. A.CH3CO2H / CH3CO2- B.H2SO3 /…
A: Conjugate acid is chemical compound when acid donates a proton or in other words it is base when…
Q: Rank these compounds (attach photo) in terms of increasing acidity IV II > III > IV IV IV > II >…
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Q: Identify the pair of species that is not a conjugate acid-base pair. H2SO4; HSO−4H2SO4; HSO4−…
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Q: Complete the following table, which lists information about the measured acid dissociation constants…
A: we know, pKa=-logKa 1) For acid A given, Ka = 4.×10-10
Q: Indicate whether an alcohol (ROH) with a pKa value of 15 has more charged or more neutral molecules…
A: pH of solution: pH is measured in terms of the abundance of hydronium [H+] ions in a given…
Q: Which of the following is not an acid A) NH3 B) HC2H302 C) HF D) HCIO
A: Acids have different definations: Lewis acid : one which accepts lone pair. Bronsted acid : one…
Q: IX II HO VIII X SH H VII CHO IV C3H5 XII XI VI čOOH
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Q: The pKa of the conjugate acid of guanidine is 13.6, making it one of the strongest neutral organic…
A: The given conjugate acid is guanidine. pKa is 13.6.
Q: 3) NH4 (aq) + NH3 (aq) + H30" (aq)
A: The question is based on the concept of equilibrium. we are titrating a strong acid with a weak…
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- In each pair, select the stronger acid. (a) Pyruvic acid (pKa 2.49) or lactic acid (pKa 3.08) (b) Citric acid (pKa1 3.08) or phosphoric acid (pKa1 2.10)Complete the equation for the reaction between each Lewis acid-base pair. In each equation, label which starting material is the Lewis acid and which is the Lewis base; use curved arrows to show the flow of electrons in each reaction. In doing this problem, it is essential that you show valence electrons for all atoms participating in each reaction. (a) (b) (c) (d)8. Indicate which compound is more acidic. Explain your answer. он он NO2 ČH3
- Which is the stronger base, CH3PH or CH3S? Hint: Which base has the weaker conjugate acid? CH3-S: VS IA Η | ΠΙΑ LBe 11 12 Na Mg CH3-PH IIIA IVA VA VIA VILA He 9 10 B 68 80 104 106 106 107 108 100 110 Fr Ra Ac Ung Unp Unh Uns Uno Une Unn Select one: O A. CH3PH* O B. CH3S™ 51 13 Al 14 CNO F Ne Si 15 16 S "a P 37 38 30 40 41 42 43 44 45 46 47 48 40 50 Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te VIILA 66 57 56 72 73 74 75 76 77 78 791 80 81 82 83 Cs Ba La Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi 22 23 24 25 26 27 28 29 30 31 32 -33 34 35 19 20 21 K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr 20 By By 30 E 17 CI Ar 18 61 62 63 54 I Xe 84 85 Po At Rn 86Write “most" under the most basic compound. Write “least" under the least basic compound. Locts Ntz NHz -NHte -COCH3 -OCHSRank the following species in order of increasing acidity. The least acidic should be on top, most acidic should be on the bottom. CFH2COOH CF2HCOOH CF3COOH CH3COOH
- 1) a) draw the structure of the predominant form of value at ph= 10.0 b) draw the structure of the predominant form of value at ph=3.0H2SO4 + NH3 ==== HSO4- + NH4+ . Which of the products is a conjugate base?Arrange the follwoing in order of decreasing basicity. OH-, CH3COOH, CH3CH2-, NH2-, NH3, Cl-
- Categorize the reagents used in Parts 1 & 2 in the table below: Reagent Acid Base Neither HCl H2SO4 NH4Cl NH3 NaOH Na2CO3 Na2HPO4 Na2SO4 NaCl Please write clearlyWhich of the following functional groups can increase basicity? I. -CN II. -CHO III. -CH(CH3)2 IV. -OCOCH3 I and II III and IV II and IV III onlyPhysostigmine is used in the treatment of glaucoma. Within this structure, the atom indicated by least basic. 2 CH3 H₂C souf 1 NHCH3 4 2 (most basic), 4 (least basic) 1 (most basic), 4 (least basic) 2 (most basic), 3 (least basic) 1 (most basic), 3 (least basic) None of the above is most basic, while atom is