NH3 is a weak base (Kp = 1.8 x 10³) and so the salt NHĄCI acts as a weak acid. What is the pH of a solution that is 0.028 M in NH4CI at 25 °C?

Q: The value of K for phenol (a weak acid), CH3OH , is 1.00x1010 Write the equation for the reaction…

A: The given weak acid is phenol which has the acid dissociation constant (Ka) value 1.00 * 10-10 We…

Q: Boric acid, BOH is used as a mild antiseptic. What is the pH of a 0.025 aqueous solution of boric…

A: Ka= [product]÷[Reactant] Then take assumption degree of ionisation is very Very less than 1

Q: 4. Calculate the pH of a salt solution of NH,CI with molar concentration 0.1 M (Kh = 5.71 x 101")

A: Given, The molarity of NH4Cl = 0.1M            Kh = 5.71 × 10-11

Q: Calculate the pH of a 0.381 M NH, solution. NH, has a Kp = 1.8 x 10-.

A: pH: The negative logarithm of H+ ion concentration is known as pH. Ammonia in water behaves as a…

Q: At 22 °C, an excess amount of a generic metal hydroxide, M(OH),, is mixed with pure water. The…

A: In order to find Ksp of the salt we first write down the given data: pH= 10.34. The given salt is…

Q: 1. The acid dissociation constant for HBRO is 2.8 x 109. Calculate the equilibrium concentrations of…

A:

Q: 11.An acid-base equilibrium system is created by dissolving 0.15 mol HNO2 in water and diluting the…

A: pH change before addition:

Q: When 0.075 mol of propionic acid, C2H5CO2H, is dissolved in 400 mL of water, the equilibrium…

A: The concentration of propionic acid and the ions has to be calculated in order to obtain the Ka.

Q: What is the pH of a 1.00 x 10^-9 molar solution of MgCl2?

A: The pH of a 1.00 x 10^-9 molar solution of MgCl2 is given below

Q: What is the pH of a 0.680 M solution of Ca(NO2)2 (Ka of HNO, is 4.5 x 104)?

A:

Q: A monoprotic weak acid, HA, dissociates in water according to the reaction HA(aq) + H,O(1) =H,0*(aq)…

A: Given equilibrium Concentration of [HA] = 0.290 M [H3O+]    = 4 × 10-4 M [A-]         = 4.00 × 10-4…

Q: The ionization constant (Kb) of aniline (C6H5NH2) is 2.35 x 10–5. If 7.285 grams of aniline is…

A: We have to predict the equilibrium concentration of all species.

Q: Calculate the pH of a solution containing 0.1M NH,OH and 0.01M NH.CI, K = 1.76 x 10$. %3D

A: Given, [NH4OH] = 0.1 M [NH4Cl] = 0.01 M Kb = 1.76 × 10-5

Q: 4. What are the equilibrium concentrations of all species and the pH of a 0.20 M solution of HF…

A: The question is based on common ion effect.  Due to common ion effect of F- equilibrium of HF shift…

Q: What is the pH of a 0.620 M solution of Ca(NO2)2 (Ka of HNO2 is 4.5 x 10 4)?

A:

Q: [2] Write a chemical equation for an equilibrium system that would lead to the following expressions…

A: Answer - (a) According to the question - The equilibrium constant( K ) expression as follows - The…

Q: A weak base has a base hydrolysis constant, Kp, of 5.5 x 10-6. What is the pH of a 0.21 M solution…

A: The question is based on the concept of chemical equilibrium. we have to calculate pH of the given…

Q: solution contains 425 mg of a weak acid (HA) (molar mass 122.0 g/mol) in 25 ml water. The…

A: Given: Initial mass of weak acid, HA = 425 mg Molar mass of HA = 122.0 g/mol Volume of water = 25 mL…

Q: 0.0500 M HF (Ka= 7.20 x 10–4)  determine the equilibrium molar concentration of H3O+ and…

A:

Q: The pH of a saturated solution of a metal hydroxide M(OH)2 is 10.500. Calculate the Ksp for this…

A: ksp : sloublity product Ksp = equilibrium between solids and  liquids

Q: If the Kp of a weak base is 1.0 x 106, what is the pH of a 0.11 M solution of this base? pH =

A: Let us consider a base B, hydrolysis of the base is given below B + H2O ---> BH+ + OH- Now, at…

Q: The ionization constant (Kb) of pyridine (C5H5N) is 5.62 x 10^-4. If 11.3 grams of sample of…

A: Given that -  Ionization constant, Kb for pyridine = 5.62×10-4  Mass of pyridine = 11.3 grams…

Q: For a weak acid, when does the pH equal the pKa?

A: Answer: For this we need to know Henderson-Hasselbalch equation . Explanation:…

Q: 11. For the weak base piperidine, C;H;0NH, K = 1.30 x 10°. What is the equilibrium concentration of…

A: An ICE table is constructed to determine the equilibrium concentration of all the species present in…

Q: A weak base has a base hydrolysis constant, K, of 3.2 x 10-6. What is the pH of a 0.18 M solution of…

A:

Q: Saccharin, a sugar substitute, is a weak acid with the formula, HC7H4NSO3.  The pKa of saccharin is…

A:

Q: For the acid HA, the acid dissociation constant, K, is 1.1 × 105. After 48 mL of 0.9 M N2OH is added…

A: pH is used to determine the concentration of hydronium ion.

Q: find the pH of the solution Ca (OH) 2, which is obtained when dissolving 0.5 grams of Ca (OH) 2 in 1…

A: We can find the concentration of Calcium hydroxide using moles and volume. Then we know we have…

Q: Given the pKa of hypochlorous acid, HOCl, is 7.54.   What is the pH of a solution which consists of…

A: The solution consist of weak acid HOCl and its conjugate base OCl- that results in the formation of…

Q: Given lead (I1) hydraxide Pb (OH),what is the molar solubility? K" 1.2x10 iwhat is the pH of this…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: If the Kp of a weak base is 2.5 x 10-6, what is the pH of a 0.23 M solution of this base?

A: pH +  pOH = 14 For a weak base solution: [OH-] = (Kb x C)1/2 Where, C = molar concentration of weak…

Q: CH;NH, is a weak base (Kp = 5.0 × 104), so the salt CH,NH,NO, acts as a weak acid. What is the pH of…

A: The pH of salt of strong acid and weak base can be calculated by  using formula

Q: What is the pH of a solution prepared by dissolving 0.450 mol of NH3 in sufficient water to make…

A: Given,  The pH of a solution prepared by dissolving 0.450 mol of NH3 in sufficient water to make…

Q: The value of K, for hypochlorous acid , HC1O , is 3.50x108. Write the equation for the reaction that…

A:

Q: (CH;), (CH,),NH) Fill in the left side of this equilibrium constant equation for the reaction of…

A: The base given is (CH3)2NH Since weak base reacts with water and produce conjugate acid and…

Q: A buffer solution is prepared in such a way that the concentration of propanoic acid is 1.8 x 10M…

A: A solution that resists change in pH value upon addition of a small amount of strong acid or base…

Q: Phenoxide ion (C,HsO) is a weak base, with Kp = 7.70 x 10. Calculate the pH of a 0.50 M aqueous…

A: Given that  Kb = 7.70 × 10-5  Peroxide ion is a weak base

Q: Boric acid, BOH is used as a mild antiseptic. What is the pH of a 0.025 aqueous solution of boric…

A: Step 1                            B(OH)3 + H2O ⇌ BOH 4- + H+At t = 0                 CAt Equilibrium…

Q: What is the pH of 0.273 M trimethylammonium iodide, (CH3)3NHI? The Kb of trimethylamine, (CH3)3N, is…

A: Kb = 6.3 x 10-5

Q: What is the pH of the following solution? Hydrogen sulphide is a weak acid and has a pka of 8.9 x…

A: Please be noted that the value given for H2S is Ka not pKa. Therefore, pKa(H2S)=8.9×10-8.

Q: Alizarin yellow R, Ka = 7.9 x 1012, is yellow in its protonated form (HX) and red in its ionized…

A: Alizarin yellow (R)  be a distinct orange color when,…

Q: When 0.040 mol of propionic acid, C2H5CO2H, is dissolved in 700 mL of water, the equilibrium…

A: Molarity is solution expressed as the number of moles of solute per litre of solution. Equilibrium…

Q: The ionization constant (Kb) of aniline (C6HSNH2) is 2.35 x 10-5, If 7.285 grams of aniline is…

A:

Q: 2. Write the equilibrium expression for the dissociation of KHT(s) in water.

A:

Q: Which substance, when dissolved in water, will produce the solution with the lowest pH? (A) CaCl2…

A: The salt which is formed by the combination of strong base and strong acid have pH = 7 when…

Q: A 0.437 M solution of a weak base has a pH of 11.94. What is the base hydrolysis constant, Kp, for…

A:

Q: A 0.495 M solution of a weak base has a pH of 11.00. What is the base hydrolysis constant, Kp, for…

A:

Q: What is the concentration of calcium ion, Ca2+ (in x 10-3 M) in a solution of calcium hydroxide,…

A:

Q: If the KbKb of a weak base is 1.6×10−6,1.6×10−6, what is the pH of a 0.18 M0.18 M solution of this…

A: Concentration of the solution is 0.18 M. Kb = 1.6 x 10-6 The Ka value is calculated by following…

Precipitation Titration

Precipitation analysis is used to analyze drugs, and to measure the salt content in food and beverages. It is an important concept from the examination point of view many practical questions are asked on the topic. This topic is significant in the professional exams for both undergraduate and graduate courses, especially for