Which acid is the weakest? (A) HCN (K, = 4.9×10-10) (B) HOCI (K, = 3.5×10-*) (C) HNO; (K, = 4.5×104) (D) CH;COOH (K, = 1.8×10-³)

Q: What is the pH of a 0.660 M solution of NaCN (Ka of HCN is 4.9 × 10⁻¹⁰)?

A: The pH will be 11.56.

Q: 2)[CLO-1] The aqueous solution of H;NCH;CH;NH, CI is going to be- Note that for ethylene diammonium…

A:

Q: Ciprofloxacin is a member of the fluoroquinolone class of antibiotics.  Which nitrogen atoms are…

A: The structure of Ciprofloxacin is given below -

Q: Consider a solution which is 0.20 M in CH3COOH and 0.10 M in CH3COONA. Which of the following…

A: CH3COOH is a weak acid and undergoes the following dissociation reaction: CH3COOH(aq)…

Q: What is the pH of a 0.570 M solution of NaCN (Ka of HCN is 4.9 × 10-10)?

A: NaCN dissociates in an aqueous medium as follows: NaCN→Na++CN- Na+ ions don't contribute to the pH…

Q: What is the pH if the hydrogen ion concentration in a vinegar solution is 0.001 M? swer: omputation:

A:

Q: b Answered Ata particular tempex Question 20 of 23 What is the pH of a 0.340 M solution of NaCN (Ka…

A: HCN in aqueous solution break as HCN= H++ CN- Now at equilibrium let concentration of H+= conc. of…

Q: 7-18. What is the pH of an aqueous solution that is 14.0% HCI by weight and has a density of 1.054…

A: Given information,      An aqueous solution that is 14.0% HCl by weight and has a density of 1.054…

Q: What is the pH of a 0.750 M solution of NaCN (Ka of HCN is 4.9 × 10-10)?

A:

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

A:

Q: In the laboratory a student measures the percent ionization of a 0.528 M solution of benzoic acid ,…

A:

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: HCIO is a weak acid (Ka = 4.0 × 10-8) and so the salt NaClO acts as a weak base. What is the pH of a…

A: Kw = Ka x Kb  Kw = 1x10-14  given that Ka = 4x10-8 find Kb = (1x10-14) / (4x10-8) = 2.5x10-7 Initial…

Q: The value of K, for nitrous acid is 4.50×10-4. What is the value of Kp, for its conjugate base,…

A: Given: Ka value of HNO2 = 4.50 ×10 ^-4 To find : Kb value of conjugate Base. Solution : As we know…

Q: The pH scale measures the mumber of H- 1ons in a solution If there are a lot of H- ions, is the pH…

A: PH is defined as logarithm of concentration of H+ ion.

Q: What

A: We will use concept of pH of salt

Q: If the ?aKa of a monoprotic weak acid is 7.9×10−6,7.9×10−6, what is the pH of a 0.25 M0.25 M…

A: The question is based on the concept of equilibrium. we have been given a weak acid whose…

Q: Which of the following statements is/are correct? O A. All of the choices are correct. O B. In a…

A: An acid is a substance or compound that releases hydrogen ions (H+) when in solution. In a strong…

Q: The following diagrams represent aqueous solutions of twomonoprotic acids, HA (A = X or Y). The…

A: a) Since the stronger acid will produce more number of H3O+ ions in the solution  Hence the acid…

Q: equilibrium. You can leave out water self Write the chemical formulas of the species that wil act as…

A: Salt of Strong base and weak acid is acidic and strong base and weak acidic is basic

Q: Q9) The base ionization constant for (Kp) for acetate ion CH3COO') is equal to: O 4.75 Ɔ 9.25 Ɔ 1.8…

A:

Q: The hypochlorite ion, ClO-, acts as a weak base. (a) Is ClOa stronger or weaker base than…

A: Given that ClO- act as a weak base

Q: a) Is an aqueous solution that is 0.10 M Na2S (aq) likely to be acidic, basic or pH neutral?…

A:

Q: A 0.050 M solution of a weak acid HA has a pH of 4.12 at equilibrium. What is the Ka of the acid?

A:

Q: A 0.15 M solution of a certain weak acid has a pH of 4.00. The K, of the weak acid is

A: Given :-  Concentration of weak acid = 0.15 M  pH of solution = 4.00  To calculate :-  Ka

Q: A 75.00-mL portion of a solution that is 0.0460 M in HClO4 is treated with 150.00 mL of 0.0230 M…

A: Acid reacts with base to form salt and water. The given acid is HClO4 and base is KOH.

Q: Suppose that a benzoic acid (C,H,COOH) solution has a pH of 3.15. Which of these substances would…

A: Given substances: KCl C6H5COONa NaI HBr We have to find the substance that would increase the pH…

Q: 15.60 From the relationship K,K, = Kw, what can you de- %3D duce about the relative strengths of a…

A: From Bronsted-Lowry concept, group of chemical compounds which donates a proton is called an acid…

Q: A Moving to the next question prevents changes to this answer. estion 2 What is the pH of the…

A:

Q: Which of the following acids is the STRONGEST? The acid is followed by its K, value. O HCIO2, 1.1 ×…

A:

Q: Benzoic acid, C6H5COOH, is a weak acid (Ka = 6.28*10-5). If I dissolve 1.22 g of C6H5COOH in enough…

A: Molarity of benzoic acid (M)= No of moles / Volume in Liter No of moles = Mass / molar mass = 1.22 /…

Q: Which of the following acids is the weakest? HF OHBr HI All of the acids are equal in strength. HCI

A: HF is the weakest acid amongst all the options given.

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: A 0.100 M weak base has a pH of 8.77. What is the Kb value of this base?

A: Given:Let the acid be : MOHpH=8.77also, concentration of weak base= 0.100Mi.e [MOH] =0.100M

Q: The PH of a Oil M agueas sólutiom of Naz( the sodium salt of 2s 10,70: what is thie ha for Hz?

A: Given: Concentration of NaZ solution = 0.15 M pH of NaZ solution                   = 10.70

Q: A particular base has Kb= 4.4*10^-4. What is the pH of 0.35M solution of this base ?

A: Since the Kb value is less so the dissociation of base is very less and it is assumed that the…

Q: Kb for NH3 is 1.8 × 10-5. What is the pH of a 0.45 M aqueous solution of NH4Cl at 25.0 °C? Show

A: This question is related to salt hydrolysis of salt. By applying certain formula for that, required…

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

A: Given : concentration of NH4Cl = 0.088 M Since the salt given is a soluble ionic salt. Hence it will…

Q: a solution with an [OH-] of 1.20x10-7 has a pOH and a pH of

A:

Q: E. Calcuiate the pH of a soltition made up by adding0.100g of NaOH to 250.0 mL of a 0.200 M solution…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: Consider a solution which is 0.20 M in CH,COOH and 0.10 M in CH,COONA. Which of the following…

A: Option (e) is true.

Q: How many moles of conjugate base should be added to 315 mL of 0.45 M HLac to give a pH of 4.00?

A: pKa of HLac = 3.85  Moles of HLac = 0.45 x 0.315 = 0.14175 mol Let moles of conjugate base ( Lac- )…

Q: Which of the following statements is/are correct? O A. All of the choices are correct. O B. In a…

A: An acidic solution is that which contains more H+ ions than OH- A basic solution is that which…

Q: Q6) 200 ml , o.0ol M NAOH is udded to 30oml, o.0005 M HCL. what is the PH of the Soluution ? Ans. :…

A: The balanced Chemical Reaction between HCl and NaOH is - HCl + NaOH ----> NaCl + H2O Here, one…

Q: Whats pH of a solution that is 0.010 M in HClO Ka = 3.5 × 10–8 and 0.010 M in HCl?

A: Since HCl is a strong acid, it is completely dissociated into H+(aq) and Cl-(aq).  Hence [H+(aq)] =…

Q: A 0.025 M solution of a weak acid (HA) has a pH of 4.28. What is the K, of the acid? a

A: ka is the ratio of  product of concentration of products raised to their stoichiometric coefficient…

Q: Q3: Calculate the k, pH and [OH] for a solution of 0.2M ammonium chloride (NH,Cl) when the k, of…

A:

Q: What is the pH of a 0.810 M solution of NaCN (Ka of HCN is 4.9 × 10⁻¹⁰)?

A: Given : Concentration of NaCN = 0.810 M And Ka of HCN = 4.9 X 10-10  Since NaCN is a completely…

Q: A weak base has a Kb of 4.29E-10. Calculate the pH of a 0.250M solution of the weak base.

A:

Q: By mixing 3L of 2M H2SO4 and 4L of 2M NH4OH , the produced solution will be ......... a) Acidic b)…

A:

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.