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

Q: Calculate the concentration of the molecules ionized in a 0.10 M HF given a Ka of 6.8 x 10-4 given:

A: Given data: Molarity of HF =0.10 M Ka of HF = 6.8 x 10-4  Formula used: For HF,  Ka=[H3O+][F-][HF]

Q: Complete the following table, which lists information about the measured acid dissociation constants…

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Q: Write  C if Statements a and b are correct            H if both statements are incorrect…

A: The terms used to define the acidic and basic strength are 1- Dissociation constant (K) The…

Q: Complete the following table, which lists information about the measured acid dissociation constants…

A: we know that, pKa is expressed as the negative logarithm of Ka.i.e.           pKa = -logKa Also,…

Q: Fill in the blanks: HA has a pka of 15, while HB has a pka of 5. The stronger acid is The stronger…

A: Please find your solution below : pKa shows the strength of and acid. It represents how strong or…

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: For each value of pKa, calculate the corresponding value of Ka. Which compound is the stronger acid?…

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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: Select the substance that can be classified as an Arrhenius base. *         A. LiOH       B. HOCl…

A: To identify: The Arrhenius base.

Q: 3. All of the following compounds are acids containing Cl. Which compound is the weakest acid? (а)…

A: Answer

Q: Calculate the H3O+ concentration from each pH: (a) 7.82;    (b) 13.96.

A: FORMULA  We can calculate HydroNium ion concentration  by using formula  [H3O]+ = 1 × 10-PH a) 7.82…

Q: Complete the following table, which lists information about the measured acid dissociation constants…

A: Acidic strength of acid is inversely proportional to pka value

Q: Complete the following table, which lists information about the measured acid dissociation constants…

A: Ka is known as acid dissociation constant. Larger the value of pka, lesser is the acidic strength.

Q: Fill in the blanks: Write C if Statements a and b are correct H if both statements are incorrect E…

A: The answers of the above questions are given following steps

Q: Which one of the following is the strongest weak acid? Weak Acid Ка HCN 4.9 x 10-10 H2O2 2.4 x 10-12…

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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: What is the relationship between the value of pKa and the strength of a weak acid Differentiate…

A: pKa of any acid is given by  pKa = -log(Ka ) where Ka = dissociation constant of acid

Q: Which solution is basic? [OH-] = 1.0 x 10-10 %D [H3O+]= 1.0 x 10-7 [H3O+] = 1.0 x 10-10 [OH-] = 1.0…

A: The pH of any compound can be calculated on the basis of the concentration of hydronium ions present…

Q: HA has a pka of 15, while HB has a pka of 5. The stronger acid is The stronger conjugate base is…

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Q: Mark all substances that can function as a Lewis acid. Select one or more: a. SO3 b. Co3+ c. BeH2 d.…

A: In this question, we will select those species which act as Lewis acid  You can see details…

Q: Which of the following acids has the strongest conjugate base? The pKa value for each acid is given…

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Q: why, during an experiment, was the initial pH of HCl, a strong acid, 2.12, while the weak acid,…

A: During an experiment,  the initial pH of HCl, a strong acid, 2.12, while the weak acid, acetic acid,…

Q: 17. The weakest base of the following compounds is NH₂ NH 3. 1. 2. NH₂ NO₂

A: Weakest  base are base which are not ready accepting proton  or less interested in proton.

Q: JO () (1) JO JO но JO HO (a) (4) (a) JO HO (a) (6) (p) H. 6.46 For each pair which is the stronger…

A: As you not specified so I am giving answer of first three  question as per guidlines A) basicity is…

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: For each pair choose the weakest acid.                acetic acid (Ka = 1.8 × 10-5)       or…

A: Ka is the acid dissociation constant of an acid , and it is a measure of acid strength. It is the…

Q: Put the following acids in order from strongest to weakest. (1 is the strongest and 5 is the…

A: The acid dissociation constant (Ka) value is used to indicate the strength of acids. Greater the…

Q: Which solution is the most basic?  0.20M H2o 0.20M NaOH 0.20M Ca(OH)2 0.20M CH3OH All solutions…

A: Basic solutions are identified by the hydroxide ions concentration in that solution. This is…

Q: In each pair, select the stronger acid. Q.) Pyruvic acid (pKa 2.49) or lactic acid (pKa 3.08)

A: Ka is the acid dissociation constant. Therefore, higher the value of Ka, higher is the acidity.  pKa…

Q: The measured pH of a 0.1 M solution of HNO3 (a strong acid) is 1.0. If the measured pH of a 0.1 M…

A: Given data contains, Measured pH of 0.1 M solution of HNO3 is 1.0.

Q: Morphine is an effective painkiller but isalso highly addictive. Codeine is a popular…

A: The pH of a solution is calculated by equation (1) in which H+ is the concentration of hydronium ion…

Q: Complete the following table, which lists information about the measured acid dissociation constants…

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Q: Identify the Lewis acid and Lewis base in each of the reactions.   Cl−+AlCl3⟶AlCl−4Cl−+AlCl3⟶AlCl4−…

A: The species which donates a pair of electrons to other species is called Lewis base and the species…

Q: For each value of pKa, calculate the corresponding value of Ka. Which compound is the stronger acid?…

A: Imagine an acid HA. Assume it dissociates in the following way- HA ⇌ H+ + A- The acid dissociation…

Q: conjugate base is amphiphrotic/amphoteric if the given pka values are

A: Acid which has higher value of Ka, is the strongest acid. HClO4 is strongest strong

Q: Label (i) the strongest acid and (ii) the weakest acid. COOH COOH COOH CI .COOH ČI Br F Br ĆI (A)…

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Q: 12. Which is the conjugate acid in the following reaction? HCI H20 II II IV A) I B) II С) I D) IV…

A: Bronsted-Lowry concept for acid and base:  A substance is acid which donates hydronium ion and a…

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

A: When a chemical species increases the concentration of the hydrogen ion (H+) in an aqueous solution,…

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: Part I. Evaluate each statement and determine whether it is true or false. 1. A substance that can…

A: According to the Arrhenius theory, the substance that gives hydrogen ion H+ in the aqueous solution…

Q: Explain why the pH of 0.1 M acetic acid (pH = 3) is higher than the pH of 0.1 M trifluoroacetic acid…

A: PH is defined as the negative logarithmic of concentration of hydronium ion

Q: 8. Dimethylamine (CH;),NH is a weak base with a pKa of 11.0 a. Calculate the pH of a solution of…

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Q: Evaluate each statement and determine whether it is true or false. A substance that can accept H+…

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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: 17. Which of the following compounds is the weakest acid? A) HF B) HC1 C) HBr D) HI 18. Which of the…

A: As we move from top to bottom in a group and left ro right in a period in the periodic table, the…

Q: There are far more weak acids and bases than there are strong acids and bases. But how is strength…

A: Acid- A molecule or ion capable of donating a proton or forming covalent bond with an electron pair.…

Q: Consider three generic acids: HX, HY, and HZ.   Arrange the acids according to strength. Strongest…

A: It is dependent on X,Y,Z  If they lie in a peroid then as the Electronegativity increase acidiity…

Q: Complete the following table, which lists information about the measured acid dissociation constants…

A: ->pKa = -log Ka  ->Ka tells about acid strength ->Ka proportional to acid strength ->pKa…

Q: The following reactions all have K<1. 1) HCOO (aq) + HCN (aq) HCOOH (aq) + CN" (aq) 2) CN (aq) +…

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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.