What are some sources of error when determining the Ka of an unknown weak acid.

Q: What will be the Ka of an acid solution that is 0.012 % ionized when it is 0.20 M?

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Q: Identify the following as acidic basic or neutral   Cs2O   ________________                KF…

A: The compounds given are Cs2O, KF, (CH3)3N, P4O10 and MgSO4.

Q: 1. if aceic acid (CH3COOH) is mixed with NaOH : - would the resulting salt be acidic, basic,…

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Q: HF HO

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Q: Determine Kb of the weak base B whose conjugate acid HB+ has Ka 6.5 × 10−4.    × 10    Determine the…

A: The Ka and Kb are related as,

Q: Classify each species as a Lewis acid or a Lewis base. CO2 Na+ OF2 S2- B(OH)3

A: LEWIS ACID: TENDENCY TO ACCEPT THE ELECTRON PAIR.(electron deficient molecule) LEWIS BASE: TENDENCY…

Q: acids/bases)Distinguish between strong/weak and concentrated/dilute:

A: Acids are the substance which are sour in taste.   Bases are the substances which are   bitter in…

Q: Fill in the blanks: Identify the Lewis acid and the Lewis base: H HO CH3CH2OH (CH3)3C+ Lewis acid…

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Q: What is the correct expression of Ka for the weak acid HF? [HF * [F] [H3O*] Ka [HF * [H;O+] [F]*…

A: Ka is the ratio of the equilibrium concentrations of product over equilibrium concentrations of…

Q: 1.Can you name the conjugate acid of each? 2. Explain what happened with the picture.

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Q: Without reference to a pka table, decide which compound in each pair is the stronger acid. a. NH3 or…

A: An acid is a substance which releases proton or takes up an electron. A base is a substance which…

Q: A 0.100 M solution of a weak acid (HA) is 4.6% ionized. Calculate Ka.

A: Given, Molarity of Weak acid  = 0.100 M  Ionization = 4.6 %  Acid, dissociation constant Ka = ?

Q: (a) Does a strong acid have a greater or lesser tendency to lose its proton than a weak acid? (b)…

A: Acid and base are defined by three theories: Arrhenius acid-base theory, Bronsted-Lowry acid-base…

Q: The strength of a Bronsted-Lowry acid depends on its ability to donate protons. True…

A: Definition:A Bronsted-Lowry acid is any species that can donate a proton, and a Bronsted-Lowry base…

Q: Why is H2SeO4 a weak aci

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

Q: Which set of reagents is not a conjugate acid-base pair? A) HCO,- and CO2?- В) Н.О and Н-О С) НЕРОД-…

A: Conjugate acid of any base is formed by adding 1 H+ ion to the base and conjugate base of any acid…

Q: Which of the following is the strongest base? HN" „NH2 NH2

A: The bases given are,

Q: A strong acid has a large or small Ka value?

A: Strong acid is a type of acid which has a high tendency to dissociate into ions in the aqueous…

Q: Assign each species on the left to a category on the right. Clear All C9H-N strong acid HCN weak…

A: In this question we have to find which is strong acid weak acid strong base weak base relative to…

Q: An acid (HA) has a % Ionization of 0.065%. A solution of this acid has a molarity of 0.500 M.…

A: Given.  % Ionization =0.065%.                              molarity = 0.500 M.

Q: In calculating [H;Oʻ] for a mixture of a strong acid and weak acid, the weak acid can often be…

A: The acid is the one that can donate the proton or accepts the pair of electrons.  According to…

Q: Which acid is weakest?   H3AsO3, Ka=5.1x10-10   HClO2, Ka=1.1x10-2   H3PO4, Ka1=7.5x10-3   H2PO4-,…

A: We have acid dissociation constant of four compound, we have to determine the weakest acid among…

Q: Why is HCN a stronger acid? What are the factors that go into determining the strength of acids…

A: There are various factors determine the strength of acids.

Q: The pH of a 0.2 M solution of a weak acid HA is found to be 3.6. Calculate the Kb for A-

A: Wr will ionize HA , then calculate concentrations at equilibrium to find Kb .

Q: B. If the pH of a weak acid solution is 2.500 and the solution has a concentration of 0.100M, what…

A: Given: pH = 2.5 Concentration = 0.100M

Q: Based on the given Ka values, which is the weakest base? Acid Ka CH3COOH 1.8 x 10–5…

A: Equilibrium constant (K) is ratio of concentration of products and reactants. Addition or removal of…

Q: Which of the following species cannot act as a Lewis acid?

A: A Lewis acid is an electron pair acceptor.  Lewis base is an electron pair donator. A comparison of…

Q: which of the attached is weak acid

A: Weak acids only have to dissociate partially in nature.They does not have tendency to dissociate…

Q: 4. Which of the following bases is the weakest? А. КОН В. NH3 C. CH;NH2 D. Ca(OH)2

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Q: Assign each species on the left to a category on the right. Clear All HF strong acid NaOH weak acid…

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Q: 3. Classify each species as either a Lewis acid or a Lewis base. a. Fe3+ C. BH3 b. NH3 d. F

A: Since we know that  Lewis Acid: it is defined as the  species which  accepts an electron pair (i.e.,…

Q: lower the value of Ka for a weak acid, the ___________ the acid.  Is it stronger, weaker, or there…

A: Acid is a substance which release hydrogen ions when dissolved in water.

Q: Which pKb value corresponds to a conjugate acid-base pair with the strongest acid?

A: Difference between conjugate acid &base is  one proton  According to bronsted proton donar acid…

Q: Enumerate one or two impurities that might affect the accuracy of prepared standard solutions of an…

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Q: Is HCH3CO2  a acid, base, or neither>

A: given chemical formula => HCH3CO2  We can write this compound as CH3COOH

Q: : What is the K, value for this weak acid?

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Q: Any conjugate acid of a weak base has a Ką value that is less than 1.0 x 107 at 25 °C. Select one: O…

A: We can solve this question by applying one of the commonly know concept of acid and base called as…

Q: what are the factors that determine the dissociation of a strong acid? why?

A: Answer  Dissociation factor of strong acid : - Strong acid :- which acid…

Q: A solution which has [OH-] = 5.6 × 10-12 M is Group of answer choices acidic. basic. neutral.

A: since the concentration of OH- ion i.e [OH-] = 5.6 × 10-12 M Hence pH = 14 + log[OH-]  => pH = 14…

Q: If the percent ionization of a 0.20M benzoic acid solution is 1.8%, calculate Ka for benzoic acid.

A: Given,Concentration of benzoic acid = 0.20M.Percent ionization = 1.8%.

Q: Classify each of the following substances: Clear All H* Lewis Acid BF3 Lewis Base H,0 Can act as…

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Q: relationship between the value of pKa and the strength of a weak acid

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Q: Determine the Lewis acid and Lewis base in each reaction. Additionally, identify the atom that…

A: Lewis acids are e- pair acceptors and Lewis bases are e- pair donors. 1) The given reaction is:…

Q: Equal molar amounts of benzoic acid and sodium acetate are mixed together in water, is the resulting…

A: Kb for acetate ion = Kw/Ka = 10-14/1.7 x 10-5 = 5.88 x 10-10

Q: In each pair, select the stronger acid. Q.) citric acid (pKa1 3.08) or phosphoric acid (pKa1 2.10)

A: Acidic strength of an acid is directly proportional to its dissociation constant (Ka ) value . pKa =…

Q: A strong acid has a weak bond to its acidic proton, where as a weak acid has a strong bond to its…

A: Strong acids can provide hydronium ion easily but weak acids can not provide hydronium ion easily.

Q: Which has the larger numerical value? Q.) The Ka of a strong acid or the Ka of a weak acid

A: The Ka of a strong acid is larger than the Ka of a weak acid. As strong acid is ionized completely…

Q: Identify the following as acidic basic or neutral K2O   ________________ VCl4_____________________…

A: In this question, we will Identify each species in acidic, basic or neutral.  You can see details…

Q: H+ concentration = 8.24×10-6 M calculate OH- concentration = pH= pOH= Acid or basic=

A: The pH is a scale that is widely used to measure the acidity or basicity of a solution. The pH is…

Q: determine which ones are lewis acid or a lewis base.   CH3OCH3   _____ BF3            ____

A: Lewis acid is able to accept a pair  of electrons and lewis base is able to donate a pair 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.