Which of the following aqueous solutions has the lowest pH: 0.1 M HCL; 0.1 M acetic acid (pKa=4.86); 0.1 M forming acid (pKa=3.75)?

Q: A weak acid, HA, has a p?apKa of 4.5424.542. If a solution of this acid has a pH of 4.4944.494, what…

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Q: HClO is a weak acid (Ka = 4.0 × 10–8) and so the salt NaClO acts as a weak base. What is the pH of a…

A: Ka of HClO is given as 4 x 10-8. It is required to calculate the pH of solution that is 0.054M in…

Q: Write the Lewis structures of the reactants and product of each of the following equations, and…

A: To determine the Lewis structure of the reactants and product as given below, A Lewis acid is…

Q: The Ka, for propionic acid, HC3H5O2, is 1.30 x 10^ -5. What is the pH of a 0.0850 M propionic acid…

A: The dissociation reaction of propanoic acid is given by  HC3H5O2 -----> H+ + C3H5O2- hence Ka = […

Q: A 0.120 M solution of a weak acid (HA) has a pH of 3.29.  a) Calculate the acid ionization constant…

A: Given,Concentration of a solution of weak acid, HA = 0.120 MpH of the solution = 3.29The…

Q: A 0.107 M solution of Providenol, a weak acid, has a measured pH of 4.32. Determine the pKa of…

A: The equilibrium constant depicting dissolution of either weak acids/base is known as dissociation…

Q: 3a.) The Ka of acetic acid is 1.8 x 105. Calculate the pH of the following solutions: a. A solution…

A: The solution mentioned here is a buffer as it is comprised of a weak acid and its salt. As per the…

Q: Suppose that ammonia, applied to a field as a fertilizer, is washed into a farm pond containing 3.0…

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Q: Calculate the pH of the following solutions: a. 2.0 M morphine hydrochloride, C,„H,„NO,•HCI (pK, =…

A: In order to solve this question, we will be using simple concepts of chemical and ionic equilibrium.…

Q: The pH of a 0.45 M solution of a weak acid, HA, is 2.13. What is the value of Ka for the weak acid?

A: Given data,pH=2.13Molarity of HA=0.45

Q: If the Ka of a monoprotic weak acid is 3.7×10−6, what is the pH of a 0.39 M solution of this acid?

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Q: HCIO is a weak acid (Ka 4.0 x 10-8) and so the salt NaCIO acts as a weak base. What is the pH of a…

A: Given data; Ka=4×10-8Also, Kw=Ka×KbAnd,Kw=1×10-14 Consider the dissociation of given weak acid as;…

Q: The pH of a solution of 0.63 M pyridine is 9.51, what is the Kb of pyridine? What is the Ka of its…

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Q: aNH2

A: Generally, sodium amide (NaNH2) is a very good nucleophilic reagent as well as it is used as a base.…

Q: The pH of a 0.224 M solution of a weak acid, HB, is 2.66. What is Ka for the weak acid?

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Q: What is the pH of a 0.250 M HOCI solution? K, of HOCI at 25°C is 3.5 x 10-8. O 7.46 O 4.03 O 3.57 O…

A: ​Given - - - >   Ka = 3.5*10-8   pH = 0.25

Q: How many moles of NH3 must be dissolved in water to give 813.0 mL of solution with a pH of 11.15? Kb…

A: The value of Kb for the given weak base is = 1.8x10-5 The concentration of the base solution is =?…

Q: The concentration of acetic acid (pKa 4.75) in vinegar is about 1.0 M. With this information, what…

A: pH of a solution is defined as the negative logarithm of the H3O+ion concentration in moles per…

Q: If 0.050 moles of gaseous HCl is bubbled in 1.0 liter of a solution that is 0.15 M in NH3 and 0.10 M…

A: When an acid is added to a weak base buffer solution, the concentration of weak base decreases where…

Q: HClO is a weak acid (?a=4.0×10^−8) and so the salt NaClO acts as a weak base. What is the pH of a…

A: Given : Concentration of NaClO = 0.014 M Since NaClO is a weak conjugate base of weak acid HClO.…

Q: If the pH of a 2.54-cm rainfall over 4600 km is 3.50, how many kilograms of sulfuric acid, HSO4, are…

A: Given: pH of acid rain = 3.50 height of rainfall = 2.54 cm Area of rainfall = 4600 km2

Q: Identify the following as acidic or basic, and write the corresponding Ka or Kb reactions and…

A: (a) HF is a weak acid.  the reaction is : HF (aq) + H2O (l) ---------> H3O+ (aq) + F– (aq) Ka…

Q: For a weak acid, when does the pH equal the pKa?

A: Answer: For this we need to know Henderson-Hasselbalch equation . Explanation:…

Q: Write the chemical equation and the Ka expression for the ionization of each of the following acids…

A: Given: Two compounds, (a) HBrO2 (b) C2H5COOH

Q: In the laboratory, a general chemistry student measured the pH of a 0.544M aqueous solution of…

A: Given :-  Initial concentration of aqueous solution of acetic acid = 0.544 M  pH of solution = 2.488…

Q: HCN is a weak acid (Ka=6.20×10−10) , so the salt, KCN , acts as a weak base. What is the pH of a…

A: Weak acid are those acid which does not dissociate completely in aqueous solution and weak base are…

Q: A 0.115 M solution of a weak acid (HA) has a pH of 3.29. Calculate the acid ionization constant (Ka)…

A: The concentration of HA = 0.115 M pH = 3.29 pH = 3.29H3O+ =10-pH=10-3.29=0.000513 M

Q: A hypothetical weak base has Kb = 5.0 × 10−8. Calculate the equilibrium concentrations of the base,…

A: Given: Kb for the weak base = 5.0 × 10-8  Concentration of the weak base = 0.15 M We have to…

Q: HClO is a weak acid (Ka = 4.0 × 10–8) and so the salt NaClO acts as a weak base. What is the pH of a…

A: It is required to calculate the pH of the solution that is 0.016 M in NaClO.Ka for HClO = 4 x 10-8…

Q: Calculate the pH of a 0.05 M solution of hydrofluoric acid. The Ka of hydrofluoric acid is 6.6x10^-4

A: Given data, Molarity of HF=0.05MKa of HF=6.6×10-4 pH of a solution is given by -log[H+]

Q: The Ka for cyanic acid HOCN is 3.5 x 10-4. What is the pH of a 0.37 M solution of the acid? What is…

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Q: Three acids found in food are lactic acid (LA) in milk products, oxalic acid (OA) in rhubarb, and…

A: Given that:  pKa of lactic acid(LA) = 3.88 pKa of oxalic acid (OA) = 1.23 pKa of malic acid (MA) =…

Q: Solutions of sodium salts of the acids in the following table are prepared with an initial…

A: Dissociation of a weak acid is given by: HA  ⇌  H+  +  A- The acid dissociation constant of this…

Q: What is the pH of the following solution? Hydrogen sulphide is a weak acid and has a pka of 8.9 x…

A: Please be noted that the value given for H2S is Ka not pKa. Therefore, pKa(H2S)=8.9×10-8.

Q: HClO is a weak acid (Ka=4.0×10−8Ka=4.0×10−8) and so the salt NaClO acts as a weak base. What is the…

A: Ka of HClO is given as 4 x 10-8. It is required to calculate the pH of solution that is 0.029M in…

Q: NH3 is a weak base (?b=1.8×10−5Kb=1.8×10−5) and so the salt NH4Cl acts as a weak acid. What is the…

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Q: If the Ka of a reaction is equal to 1.8x10-5, which is favored- the products or the reactants? How…

A: If Ka of reaction is 1.8 x 10-5 then reaction is reactant favoured because value of equilibrium…

Q: Which of the following has the highest pH? O pure water O 0.1 M HA, pK, = 11.89 O 0.1 M HD, pK, =…

A: It is well known that the lower value of pH has a high concentration of hydrogen ions [H+]. The…

Q: 1.4 A 0.015 M solution of hydrogen cyanate , HOCN, has a pH of 2.67 a) What is the hydronium ion…

A: Given: The pH of the solution of hydrogen cyanate is 2.67. The molarity of hydrogen cyanate is 0.015…

Q: The pH of a 0.55 M aqueous solution of hypobromous acid, HBrO, at 25oC is 4.48. What is the value of…

A: The concentration of HBrO solution = 0.55 M. pH of aqueous HBrO solution = 4.48.

Q: Why is the pH of water at 25oC equal to 7.00?

A:

Q: 5 g of cyanoacetic acid, CH2CNCOOH in a liter of aqueous solution has a pH of 1.89. what is the…

A: SOLUTION Acid Dissociation Constant  It is an equilibrium constant of a weak acid which…

Q: Sodium ascorbate is the sodium salt of ascorbic acid (i.e. Vitamin C) and is used as an antioxidant…

A: We have to predict the pH of 0.15 M solution for ascorbate ion.

Q: Determine the pH of a solution of a weak acid (HA) that is 0.0072 M. The Ka of the weak acid is 1.9…

A: Given ,  Weak acid is HA Concentration of weak acid (C) = 0.0072 M Dissociation constant (Ka) of the…

Q: The pH of a 0.800 M aqueous solution of a weak acid is 1.99. What is the value of Ka for this acid?

A: Given  pH = 1.99 Concentration (c) = 0.800 M Ka =?

Q: The Kb of hydrazine is 9.1 x 10-7. If 3.12 x 10-3 mol of hydrazine is added to water to make up…

A: Hydrazine (N2H4) is a weak base Concentration of hydrazine is calculated as follows,

Q: NH3 is a weak base (Kb = 1.8 × 10–5) and so the salt NH4Cl acts as a weak acid. What is the pH of a…

A: Dissociation constant of base is given by,

Q: HClO is a weak acid (?a=4.0×10−8) and so the salt NaClO acts as a weak base. What is the pH of a…

A: An acid is a substance that can furnish the hydrogen ions in the aqueous solution. The weak acid…

Ionic Equilibrium

Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.

Arrhenius Acid

Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red. 

Bronsted Lowry Base In Inorganic Chemistry

Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.