Define concept of Acid Strength and pKa ?

Q: Phosphoric acid, H3PO4 is a triprotic acid.    pKa1= 2.16      pKa2=7.21            pKa3=12.32…

A: Given data, Molarity of HPO42-=0.450MpKa1=2.16pKa2=7.21pKa3=12.32

Q: Write a net ionic equation to show that piperidine, C5H11N, behaves as a Bronsted-Lowry base in…

A: According to Bronsted-Lowry concept, the acidic and basic character of a compound can be interpreted…

Q: Calculate the hydrogen ion concentration of a Nitric acid solution with a pH of 2.11.

A:

Q: The acid ionization constant (Ka) for HI is estimated to be 1 x 109. What is the value of Kb for I–

A: Given, Acid ionization constant for HI, Ka = 1 × 109

Q: What is the strongest base that can exist in liquid ammonia as a solvent?

A: Strongest base that can exist in liquid ammonia as a solvent.

Q: List the following compounds in order of increasing acid strength: HBrO, HBrO2, HClO2

A: The acidity order of oxoacid is given below

Q: Calculate the pH of water at 60 °C. The pKa of water is 13.017 at this temperature.

A: Since pKa = -log(Ka) => Ka = 10-pKa  = 10-13.017 = 9.62 X 10-14 approx H2O (l) -----> H+(aq) +…

Q: I'm not sure how to solve this.

A: First the equilibrium concentration of H3PO4 is determined.

Q: Write a balanced equation for the acid–base reaction thatleads to the production of each of the…

A: Neutralization Reaction : It is a reaction in which acids react with Base to form salt & water.…

Q: How many moles of nitric acid would you have if you had 0.550 L of a 0.025 M nitric acid solution?…

A: The number of moles of nitric acid (n) is calculated as shown below where M is the concentration of…

Q: Calculate the formate ion concentration and pH of a solution that is 0.050 M in formic acid (HCOOH,…

A:

Q: Choose the phrase that best describes the relative acid strength of these acids. NH3 H,O. is more…

A: Acid is the compound which give hydronium ion . so, greater is the tendency to give hydronium ion…

Q: 7.6 In aqueous solution, boric acid behaves as a weak acid (pK, = 9.1) and the following equilibrium…

A: Here we have to differentiate between Lewis acid and Bronsted acid behavior of different acid. The…

Q: When calculating [H3O +] for weak acid solutions, we can often use the  x is small  approximation.…

A: Nature of approximation and its validity:The smaller value of the equilibrium constant of the weak…

Q: Which of the following Lewis base has the highest proton affinity in the ga phase? PME3 PF3 PCI3

A: There are many trends in inorganic chemistry. These trends are atomic size, reactivity, metallic…

Q: What is the hydroxide ion concentration of a solution with pOH =1.5?

A:

Q: Calculate the acid ionization constant (Ka) if the pH of the 0.1 M acetic acid solution is 2.87?

A: We have given that  Concentration of acetic acid = 0.1M  pH = 2.87

Q: For the Lewis structures of PF3 and PI3 what are the Lewis acid / base properties of the compounds.…

A:

Q: Which ion is responsible for increased acidity?

A: The ion responsible for increased acidity is to be explained.   The acids are proton donor.  In an…

Q: Which of the following compounds are more acidic and WHY? Draw equations showing the dissociation…

A: An increase in the number of electronegative atoms will increase the acidity of the acid. If there…

Q: Which of the following can be classified as a Lewis base? BH3 NH3 II II IV

A: A species is said to be lewis base if it donates electron pair to acceptor compound to form covalent…

Q: Which of the following is a Lewis acid? O BF3 O CHCI3 O CH4 O NH3 O None of the above are Lewis…

A: In this question, we have to find out the correct answer of given problem by the help of "Lewis…

Q: A solution contains 0.675 g of ethylamine, CH;NH2, per 100 mL of solution. Electrical conductivity…

A: From the given information, Ethylamine reacts with water to produce ethylamine ion and hydroxide ion…

Q: Calculate the pH of the following solutions: a. 0.34 M hydrocyanic acid. b. 1.5 M solution of…

A: pKa of hydrocyanic acid is 9.2

Q: Consider the concept of acid strength based upon molecular structure and select the weakest acid.…

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

Q: Oxides can react with water to form acids or bases. Identify each of the following oxides as acidic…

A: All oxides of metals are basic while those of non - metals are acidic  Cl and N are non metals hence…

Q: Write the products of the following acid-base reaction. CH3OH NaNH2 ?

A: The reactants given are  1) CH3OH  2) NaNH2

Q: Provide and label the conjugate base and acid. Is this reaction of product favored? Explain. (pKa…

A: The reaction given is,

Q: Give the uses and economics of Muriatic acid.

A: Introduction: Muriatic acid is the hydrochloric acid. Hydrochloric acid is the aqueous solution of…

Q: Briefly explain differences between acidic , neutral and alkaline ph

A: Acids liberates H+ ions in the aqueous solution while Alkalis (or Bases) liberates OH- ions in the…

Q: Write the reaction that occurs, and identify the conjugate acid-base pairs of the following…

A:

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 the amphiprotic salt NaHA.  Ka (H2A) = 0.0026, Ka (HA-) = 0.0000000077

A:

Q: Why is the hydronium ion concentration in a solution that is 0.10 M in HCl and 0.10 M in HCOOH…

A: Weak acids:    In solution, weak acids do not ionize fully means it ionizes partially in the…

Q: Solubility of gases in water increases with increasing mass. Explain?

A: Since you have posted multiple questions, we will answer only first question for you. If you want…

Q: At what pH is the concentration of a compound, with a pKa = 3.7, 10 times greater in its acidic form…

A: Given information: pKa = 3.7 [Acid] = 10[Base]

Q: Organic molecules often have polar covalent bonds. How does this provide opportunities for chemical…

A:

Q: When hydrogen chloride reacts with ammonia ammonia chloride is formed. write the equation for this…

A:

Q: Calculate the pH and pOH for the following: a. 10mg of cyanic acid (pKa=9.21) in 1L of water

A:

Q: 2.44 moles of HNO3 is added to water and the final volume is 330mL. The pH of this solution was…

A: Nitric acid is strong acid. Given , pH = 1.47

Q: Formic acid, HCOOH, has Ka= 1.8 x 10–4. Calculate the molar concentration of H3O+ in 0.15 M HCOOH…

A: using given value of ka and concentration  use equaction- H+=cα α=kaC use this boh calculate the…

Q: NH3 contains no OH- ions, and yet its aqueous solutions are basic. Explain why?

A: According to Lewis concept Ammonia is considered as base since it has lone pair of electrons with…

Q: What effect does element size have on acidity?

A: There is significant effect of element size on acidity. With increasing size of atom acidity…

Q: write down an equation for the reaction of ammonia solution (NH3) and hydrogen bromide (HBr) and…

A: Bronsted acid :-  Species which can donate proton (H+) to other is known as acid Bronsted base :-…

Q: Any reaction in which one species donates an electron pair to another species is a Lewis acid–base…

A: Lewis theory describes acids and bases as: Acids: Electron pair acceptors. Bases: Electron pair…

Q: The pH of a 0.13M solution of barbituric acid (HC,H,N,0,) is measured to be 2.45. Calculate the acid…

A: Given: The value of pH is 2.45. The initial concentration of acid is 0.13 M. Introduction: Acid…

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.