What is the Ka of hydrazoic acid if a 0.020 M hydrazoic acid aqueous solution has a pH of 3.22?

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: A solution of 0.20 M hydrazoic acid has a pH of 3.21. What is the Ka of hydrazoic acid?

A: We have to calculate the Ka of acid.

Q: A 0.17 M solution of a weak acid has a pH of 2.85. What is the ka of the weak acid?

A: Given: concentration of weak acid=0.17M              pH of weak acid=2.85 To calculate: Ka of weak…

Q: Consider the aqueous solutions of two weak acids depicted in diagrams A and B. (a) What is the…

A: There are two types of bases/acids. One is strong base/acid which is completely dissociable in into…

Q: A 0.035 M solution of a weak acid (HA) has a pH of 4.88.What is the Kₐ of the acid?

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Q: Methylamine, CH3NH2, is a weak base.CH3NH2(aq) + H2O(ℓ) ⇄ CH3NH3+(aq) + OH−(aq)If the pH of a 0.065…

A: Given data contains, pH=11.70 Concentration is 0.065 M. The pOH is calculated as, The pOH is 2.30.

Q: Which of the following solutions would have the highest pH? Assume that they are all 0.10 M in acid…

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

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: CH3NH2 is a weak base (?b=5.0×10^−4), so the salt CH3NH3NO3 acts as a weak acid. What is the pH of a…

A: CH3NH3NO3 → NO3- + CH3NH3+ Kb for the above reaction is 5x10-4  CH3NH3 can donate a proton and…

Q: A solution of a weak acid has a concentration of 0.64 M and is found to have a pH of 3.77. What is…

A: The dissociation of a weak acid can be depicted as follows.           HA   +H2O ⇔    A-  +  H3O+I…

Q: An unknown weak acid with a concentration of 0.077 M has a pH of 1.80. What is the Ka of the weak…

A: The Ka of weak acid

Q: In a 0.35 M solution, a weak acid is 2.8% dissociated.     (a) Calculate the [H3O+], pH, [OH−]and…

A: To calculate, we would use the given information .

Q: 4. A 0.020 M weak acid HA, has a pH of 3.21. What is the Ka of the acid?

A:

Q: the Ph of a 0.050 M weak acid solution is 5.25. Calculate the Ka of the acid.

A: Given, pH of weak acid= 5.25 [weak acid ] =0.050 M Ka = ?

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: Carbonic acid, H:COs is a diprotic acid with Ka1 = 4.3 x 10 7 and Ka2 = 5.6 x 10 11 What is the pH…

A: H2CO3 is the weak dibasic acid as it gives two H+ ions. Since, value of Ka1 of H2CO3 is very-very…

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: A 0.037 M solution of a weak acid (HA) has a pH of 4.34. What is the Ka of the acid?

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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: The pH of a 2.642M solution of a weak acid, HB is 2.34, What is the Ka for the acid?

A: Given: The conc. of the weak acid solution = 2.642 M HB is a weak acid with a pH = 2.34 A weak acid…

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: Trichloroacetic acid (CCl3COOH) is a corrosive acid that is used to precipitate proteins. The pH of…

A: Given information: Concentration of HClO4 solution = 0.040 M Concentration of CCl3COOH solution =…

Q: If the Ka for a weak acid, HA, is 4.5 × 10−6, what is the Kb for its conjugate base, A−?

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Q: An unknown weak acid with a concentration of 0.085 M has a pH of 1.80. What is the Ka of the weak…

A:

Q: Saccharin, a sugar substitute, is a weak acid with pKa = 2.32at 25 °C. It ionizes in aqueous…

A: Since the reaction given is HNC7H4SO3(aq) ⇌ H+(aq) +HNC7H4SO3-(aq) hence assuming that y…

Q: If the ph of 0.10 M HA (weak acid) is 4.10, calculate Ka for this weak acid.

A: From given pH value the hydronium ion concentration is determined first.

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: 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: what is the equilibrium constant, Ka, for the acid?

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Q: What is the Ka of a weak acid whose 0.10 M solution produces a pH of 2.38?

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Q: If the pH of a 0.55 M solution of acid is 5.4, what is the KA?

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

A: Solution -

Q: What is the Ka of bromoacetic acid if a 0.035 M bromoacetic acid aqueous solution has a pH of 2.22?

A: Let us take a reaction,        HX = H+ + X-  The dissociation constant of the above reaction is,  Ka…

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: A 0.015 M solution of hydrogen cyanate (HOCN) has a pH of 2.67. Calculate the hydrogen cyanate…

A: Calculate the concentration of hydronium ion:

Q: Calculate the pH of a solution prepared from 3.0 g of acetic acid to 500 mL of water.

A: Solution: pH is the measure of hydrogen ion strength of a solution and its value is equal to the…

Q: The pH of a 0.220M solution of a weak acid, HB, is 2.51. What is Ka for the weak acid?

A: Given  PH of weak acid = 2.51  Concentration of weak acid ( c ) = 0.220 M  Ionization constant ( Ka…

Q: A solution of benzoic acid (C6H5COOH) that is 0.20 M has a pH of 2.45. What is Ka for benzoic acid?

A: Benzoic acid is a weak acid. With the help of pH firstly calculate hydronium ion concentration.

Q: Calculate the [H+] and pH of a 2.35×10−4 M hydrazoic acid solution. The Ka of hydrazoic acid is…

A: We wil use concept of weak acid for H+ and pH.

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: ASA (also known as Aspirin) contains acetylsalicylic acid, C16H12O6. Acetylsalicylic acid is a weak…

A: 0.015 mol/L acetylsalicylic acid has a Ka of 3.3 × 10-11.We have to calculate the pH and pOH at…

Q: The pH of a 0.30 M solution of an acid, HA, has a pH = 5.20. Calculate Ka of HA

A: To calculate Ka of HA: The dissociation constant for the acid:

Q: What is the pH of a solution prepared by dissolving 1.2 g of Ca(OH)2 in water to make 925 mL of…

A: First, calculate the molarity of calcium hydroxide,

Q: The Ka for HC2H3O2 is 1.8 x 10-5. What is the pH of a 0.02M solution of this weak acid?

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Q: Calculate the pH of a 0.10M weak acid, HA, whose Ka is 1.8 X 10

A: Given that: Concentration of weak acid,(HA) = 0.10M Ka = 1.8×10-5 Weak acid partially dissociates…

Q: What concentration of acetic acid would produce an aqueous solution with a pH = 3.275? (Ka for…

A: Provided pH of acetic acid=3.275 Provided Ka of acetic acid=1.76×10-5 Since,  pH = -log[H+] By using…

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.