The Ka for formic acid (HCO2H) is 1.8x10-4, What is the pH of a 0.20M aqueous solution of sodium formate (NaHCO2)?

Q: A solution is prepared at 25 °C that is initially 0.35M in chloroacetic acid (HCH, CICO,), a weak…

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

A: Given: Kb = 1.8 × 10-5              Concentration of solution = 0.056 M             Temperature = 25…

Q: The pH of a 0.0833 M ethanoic acid (Ka=1.8x10-5) solution is

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Q: Calculate the pH of a solution prepared by dissolving 5.00 g of NaCIO in 400.0 mL of water.

A: Mass of NaClO  = 5.00g Volume of solution = 400.0 mL=400 ×10-3L Ka = 2.9 × 10-8

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: Ka = 6.20×10-10 pKa = -log(Ka)    = -log(6.2×10-10 = 9.21  Concentration(C) of salt =0.0750 M

Q: The Ka of hypobromous acid, HOBr, is 2.6x10-9. Calculate the pH of a solution which is composed of…

A: Given :-  [HOBr] = 0.40 M  [NaOBr] = 0.40 M Ka for HOBr = 2.6 × 10-9  To calculate :-  pH of…

Q: What is the pH of a 0.580 M solution of NaCN (Ka of HCN is 4.9 x 1010)?

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Q: The acid dissociation constant K of carbonic acid (H,CO,) is 4.5 x 10. Calculate the pH of a 2.0M…

A: ★ Answer : pH of 2.0 M carbonic acid solution is 3.0    ★ Solution :   H2CO3 is a weak acid that…

Q: The pH of a (1.7300x10^-1) molar solution of an aqueous weak acid (HA) is (1.99x10^0). The Ka for…

A: PHis  defined as the power of Hydrogen.it measure acidity, basicity or neutrality of aqueous…

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: What is the pH of a 0.25 M solution of sodium propionate, NaC3H5O2, at 25°C? (For propionic acid,…

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Q: A solution is formed by mixing 0.2 M of a weak acid HA and 0.1 M of hydrochloric acid HCl. Determine…

A: Given reaction is :  HA + H2O <--------> H3O+ + A-  Ionization constant of HA = Ka = 2 x 10-5…

Q: The pH of a 0.6 M aqueous solution of formic acid, HCHO2, at 25.0 °C is 1.7. What is the value of Ka…

A: Given that,  pH of formic acid = 1.7 Concentration of formic acid = 0.6M

Q: What is the pH of a 0.380 M solution of NACN (Ka of HCN is 4.9 x 1010)?

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Q: Calculate the ph of 0.350 M acetic acid whose ionization constant is Ka= 1.8x10-5

A: Given :-  concentration of acetic acid solution = 0.350 M  Ka = 1.8 × 10-5  To be calculated :-  pH…

Q: NH3 is a weak base (Kb=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: The substance benzoic acid (C6H5COOH) is a weak acid (K₂ = 6.3x10-5). What is the pH of a 0.230 M…

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

A: Given: Ka of HCN = 6.20×10-10 KCN = 0.0675 M we have to determine the pH ? Kb = Kw / Ka       = 1 ×…

Q: The pH of an acetic acid (Ka = 1.75 x 10−5) solution is 3.14.  What is the concentration of acetic…

A: Given :-  pH of acetic acid solution = 3.14  Ka for acetic acid = 1.75 × 10-5  To be calculated :-…

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

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Q: At 25 °C, how many dissociated OH– ions are there in 1291 mL of an aqueous solution whose pH is…

A: The number of dissociated hydroxide ions are present in given solution is determined as,

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: Ascorbic acid (vitamin C, C6H8O6) is a diprotic acid (Ka1 = 8.0×10–5 and Ka2 = 1.6×10–12). What is…

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Q: Kb for ammonia (NH3) is 1.76 x 10-5     What is Ka for ammonium, its conjugate acid. (NH4+)

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Q: The pH of 0.010 M trimethylamine is 10.78 at 25 oC.  What is the hydroxide ion [-OH] concentration?

A: pH is defined as the negative logarithm to the base 10 of hydrogen ion concentration. pH = -log10[…

Q: Calculate the pH of a 2.50x10-4M solution of hydroiodic acid, HI. pH =

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

A: Given: Ka of HCN = 6.20×10-10 KCN = 0.0525 M we have to determine the pH ? Kb = Kw / Ka       = 1 ×…

Q: NH3 is a weak base (K, = 1.8 x 10-5) and so the salt NH¼C1 acts as a weak acid. What is the pH of a…

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Q: A solution is prepared at 25 °C that is initially 0.39M in chloroacetic acid (HCH,CICO,), a weak…

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Q: Pyridine, C5H5N, is a toxic, foul­smelling liquid for which Kb = 1.7 × 10 ­9 . What is the pH of a…

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Q: Methylamine, CH3NH2, has a Kb = 4.40 x 10-4.  What is the pH of a 0.290 M  solution of methylamine?

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Q: The pH of a 0.5 M aqueous solution of formic acid, HCHO2, at 25.0 °C is 2.0. What is the value of Ka…

A: pH tells us about the acidic or alkaline values of a solution. Dissociation of a weak acid depends…

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

A: given  HClO Ka=4.0 x 10-8  concentration of  NaClO IS 0.027  PH =?

Q: If the Ka of a monoprotic weak acid is 6.6x10-6, what is the pH of a 0.32 M solution of this acid?

A: Ka = 6.6 x 10-6 c = 0.32 M

Q: 6. How many moles of benzoic acid (HC-HsO2) must be used to prepare 500. mL of a solution that has a…

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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: 9. Determine the pH of a 0.085 M sodium formate salt solution at 25°C. Sodium formate is a basic…

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Q: Enough water is added to 0.35g of benzoic acid to make 1000 mL of a solution. What is the pH?…

A: Given: Mass of benzoic acid=0.35 g Volume of solution=1000 mL =1 L Ionization constant for benzoic…

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: What is the pH of a 0.690 M solution of NACN (Ka of HCN is 4.9 x 10 10)?

A: Given, The concentration of the solution of NaCN = 0.690 M Acid dissociation constant (Ka) = 4.9 x…

Q: The acetate ion is the conjugate base of acetic acid. The Ka of acetic acid is 1.76×10–5. What is…

A: Kb for the acetate ion is determined as follows,

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: What is the concentration of a formic acid (HCHO,) solution with a pH = 3.15? The K, of formic acid…

A: given :- pH of solution = 3.15                Ka of formic acid = 1.8 × 10-4 to calculate :-…

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: A solution is prepared at 25 °C that is initially 0.29M in chloroacetic acid (HCH,CICO,), a weak…

A:

Q: The pH of an aqueous solution of 0.390 M methylamine (a weak base with the formula CH;NH2) is

A: 12.09

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

A: pH = 7 +12 (pka + log c)

Q: If 7.4 g of butanoic acid, C, H, O,, is dissolved in enough water to make 1.0L of solution, what is…

A: Mass of butanoic acid =7.4 g Molar mass = 88g/mol Moles = 7.4g/88g/mol= 0.0841 moles Volume of…

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.