Butyric acid, the compound responsible for the unpleasant odor and taste of sour milk, has a pKa value of 4.82. What is its Ka value? Is it a stronger acid or a weaker acid than vitamin C?

Q: El producto principal de la siguiente reacción es HCI OH II II IV

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Q: How do you get a Pka?

A: Dissociation constant (Ka) is the equilibrium constant of a reaction which depicts the dissociation…

Q: Lanthanide hydroxides and oxides can be ionic and basic and the basic nature decreases by the…

A: Answer :- (a) True  Lanthanide hydroxide and oxide are ionic and basic and basic nature decreases by…

Q: You have a 200 mM solution of polyionic acid (pKa 4.2 and 11.6) at pH 5. What are the concentrations…

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Q: 0: HN IZ N о ОН

A: The objective is to determine the most proton acid in the given compound.The given compound is…

Q: In which of the following does no reaction occur? K,CO3(aq) + Ca(NO3)2(aq) → O HNO3(aq) +NaOH(aq) –…

A: A reaction is said to occur when the reactants present in the reaction vessel/container gets…

Q: Calculate the pH of a 0.295 M solution of ethylenediamine (H2NCH,CH,NH2). The pKa values for the…

A: Given,molarity of ethylenediamine ( H2NCH2CH2NH2)   = 0.295 MThe pKa values of acidic form of…

Q: 4. Consider the following bases: Which of the following bases is strong enough to deprotonate CH4?…

A: Weak acids and bases are more stable than strong acids and bases. Hence in an acid-base reaction,…

Q: Classify the following reaction: Mg(OH)₂(s) +H₂SO₄(aq) → 2 H₂O(l) + MgSO₄(aq)

A: The given reaction is  Mg(OH)₂(s) +H₂SO₄(aq) → 2 H₂O(l) + MgSO₄(aq) Classify the given reaction:

Q: What is the pKb of the conjugate base of a weak acid that has a pKa equal to 5.29 at 25ºC?

A: To get the pKb of the base (B) you MUST subtract the pKa from 14. The reason for this is that the…

Q: CHO EtBr НО. Boy Hoy

A: The reaction of a cyclic ketone with methyl vinyl ketone resulting in a ring closure to yield a…

Q: If I’ve got 20.0 grams of tartaric acid with a (first ionization) pKa = 2.91. If I dissolve this…

A: The formula of tartaric acid is C4H6O6. Molar mass of C4H6O6 = Atomic mass of C X 4 + Atomic mass of…

Q: hat molar ratio of to H in solution would produce a pri Phosphoric acid BPO4), a triprotic acid, has…

A: Here the answer is 1.38

Q: Predict the products from the following chemical reactions.   HNO3   +    Ba(OH)2

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Q: The concentration of the active ingredient in soap is a fatty acid salt NaA. A'=CH3(CH2),CO'. What…

A: The question is based on the concept of salt hydrolysis. we have to determine the pH of the given…

Q: Calculate the pH (aq., 25 oC) of a 0.100 M triethylamine ((C2H5)3N) solution whose Kb = 1.02 x 10–3.

A: Given,  Molar concentration of (C2H5)3N = 0.100 M  Base dissociation constant of (C2H5)3N = Kb =…

Q: 2NH4Cl + H2CO3 → CO(NH2)2 + 2HCl + 2H2O a) The maximum daily dose of NH4Cl for adults is 12 g.…

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Q: Calculate the pH at25°C of a 0.37M solution of sodium propionate NaC2H5CO2. Note that propionic acid…

A: we have to calculate the pH of sodium propionate

Q: The Ka value for chlorous acid (HCIO,) is 1.1 x 10%, while the Ka for nitrous acid (HNO,) is 4.6 x…

A: Answer: Value of equilibrium constant is always equal to the ratio of molar concentration of…

Q: What indicated hydrogen atom is the most acidic? B HAA H₂ of C CH3 D

A: We have to select the most acidic H

Q: A weak acid has a pKa of 6.44. If the pH of the solution is 7.22, what percentage of the acid is…

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Q: Guanine, as it would appear at physiological pH, is shown below. One of the pKas of guanine, which…

A: The protonated form at N7 is =NH+- The deprotonated form at N7 is =N- pKa of =NH+ is, pKa = 2.4

Q: Ammonia is O Acidic O Neutral O Basic

A: Formula of ammonia - NH3. Ammonia contains one nitrogen and three hydrogens. Nitrogen atom of…

Q: Given the identity of the base, its concentration and pKb, determine the pH of a solution of the…

A: Whenever a weak acid and strong base reacts with each other than they form a weak acid strong base…

Q: How does pKa relate to acid strength?

A: For any weak acid, let's say HA, pKa is the relationship between the dissociation constant of acid.…

Q: At what pH will 50% of a compound with a pKa = 7.4 be in its basic form? Express your answer using…

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Q: What is the pH of a solution containing 0.113 mol L of HCI and 1.154 mol L of a weak acic with PKA -…

A: In the presence of strong electrolyte having a common ion dissociation of weak electrolyte gets…

Q: Phosphoric acid is a tri-acid. It is often associated to biological molecules (i.e. proteins,…

A: When given pH < pKa for a functional group, it gets protonated. When given pH > pKa for a…

Q: Predict the products from the following chemical reactions.   (a) HNO3  +    Ba(OH)2   ⟶   (b)…

A: Given chemical reactions a) HNO3 + Ba(OH)2 ⟶ It is acid base reaction.   b) CaCl2 + CsOH ⟶ It is…

Q: Is potassium acetate, KC2H3O2, an acidic or basic salt and why?

A: Potassium acetate:

Q: Which of the following salts is considered basic when dissolved in water? Which of the following…

A: Given salts :  NaF  KCl  BaBr2 (NH4)2SO4 NaNO3  when a salt is dissolved in water , it gives acid…

Q: A solution is made by dissolving 0.0860 moles of Ba(OH)2 in enough water to make 755 mL of solution.…

A: Given information,    0.0860 moles of Ba(OH)2    Volume of solution is 755 mL

Q: what is the pH of an aqueous solution of 25.0 mM HClO2 ? given pKa= 1.96

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Q: What is the pKa of nitrous acid; Ka = 4.5 × 10–5 ?  1.62 3.35 4.35

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Q: Using pK, values given in Table 4.1, predict the position of equilibrium in this acid-base reaction…

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Q: How would you convert CaO + H2O into Ca(OH)2

A: How would you convert CaO + H2O into Ca(OH)2

Q: A weak acid solution with concentration 0.020 M has a pH of 3.7, what is the pKa of this acid?

A: Given pH = 3.7 Initial Concentration = 0.020 M

Q: (8) Answer each of the following questions: (a) Ka for HNO₂ is 4.6 x 10-4. What is the Kb for its…

A: The pH of a solution is used to determine the acidity or alkalinity of a solution. The pH of a…

Q: Bicarbonate is the most abundant anion in the blood. This anion is essential to increase metabolic…

A: Role of bicarbonate anion in human body:

Q: Blood has a normal pH of about 7.40. Lactic acid has a pKa of 3.08. Is lactic acid…

A: pH of blood = 7.40  pKa of lactic acid = 3.08

Analytical Tools

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