A saturated solution of magnesium hydroxide, Mg(OH)2, has a pH of 10.42 at 25oC. Calculate the Ksp of Mg(OH)2.           (A) 9.1 x 10–12          (B) 1.8 x 10–11          (C) 3.8 x 10–11          (D) 7.3 x 10–11

Q: Ką for phenol (a weak acid), CH5OH, is 1.00×10-10.

A: Weak acids  acidic strength can be measured by Ka value    When a weak acid HA dissolved in water…

Q: What is the pH of [H30+]= 2.4 * 10 3 M?

A: Given :- [H3O+] = 2.4 x 10-3 M  To calculate :- pH of solution   pH = -log[H3O+]

Q: In a liter of 0.2F solution of propionic acid, HC3H$O2 it has ionization constant of 1.34 x 10-3,…

A: The formality solution is the number of formula mass of any solute dissolved in 1 litre of solution.…

Q: 1. Calculate the value of K for the reaction

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Q: 2. Hypochlerous acid (HOCI) is a weak acid that forms when chlorine dissolves in water, and itself…

A: a. The central atom is O. It has two sigma bonds and two Lone Pair. That's why it has 4 coordination…

Q: What is the pH (to two decimal places) of a saturated aqueous solution of LiF (at 25 °C)? Ksp = 3.8…

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

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Q: What is the pH of a 0.0730 M solution of methylamine (CH₃NH₂, Kb = 4.4 × 10⁻⁴)?

A: Given :- concentration of methylamine solution  = 0.0730 M  Kb for methylamine = 4.4 × 10-4  To…

Q: What is the pH of a 0.860 M solution of Ca(NO2)2 (Ka of HNO2 is 4.5 x 10-4)?

A: A numerical problem based on pH concept, which is to be accomplished.

Q: A student does a titration of 86.0 mL of a 0.37 M solution of methylamine (CH3NH2(aq) (pKb =3.36)…

A: PH+Poh=14. This is basic buffer equation  Poh=pkb+log[salt]/base Use this equation and get the…

Q: A student determines that the value of pK, for HCN = 9.26 . What is the value of K,? a

A: Given  PKa for HCN   = 9.26  Ka    = ?

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 pOH of 0.716 M anilinium hydrochloride (C6H5NH3Cl) solution in water, given that Kb…

A: Given data,Molarity of C6H5NH3Cl=0.716MKb=3.83×10-4

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

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Q: 5. The hydronium ion concentration of vinegar is approximately 4 x 10-³M. What are the corresponding…

A:

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

A: HNO2 => H+ + NO2- Ka = [H+][NO2-]/[HNO2] Given, Ka = 4.5x10-4 = [H+][NO2-]/[HNO2] 4.5x10-4 =…

Q: Calculate the pH at equivalence. The p K of nitrous acid is 3.35.

A:

Q: What is the maximum [CO1 that can exist in a 1.8 x 10 M AGNOS solution?

A: The Ag+ ions coming from both AgNO3 and Ag2CO3 are to be considered for the calculation. As shown…

Q: What is the pH of a 0.570 M solution of Ca(NO2)2 (Ka of HNO2 is 4.5 x 10-4)?

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Q: Suppose a 0.025 M aqueous solution of phosphoric acid (H₂PO4) is prepared. Calculate the equilibrium…

A: Given the molarity of phosphoric acid, H3PO4(aq) solution = 0.025 M  H3PO4 is a triprotic weak acid…

Q: What is the value of Q when the solution contains 2.00×10^−3 M Ca^2+ and 3.00×10^−2 M SO4^2−?

A: The Q can be calculated by using formula Q = [Ca2+][SO4 2-]

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

A:

Q: 3. What is the value of k"?

A: OH- + C24H30N3+  C23H30N3-OH The general rate law is   [rate] = k [OH-]^x [ C24H30N3+]^y For the…

Q: The acid constants of the polyprotic acid НЗASO4 are К_a1 %3D 5х10 ^-3, К_а2 - 8х10^-8, К_а3 %3D…

A:

Q: What is the pH of a 0.690 M solution of Ca(NO₂)₂ (Ka of HNO₂ is 4.5 × 10⁻⁴)?

A: HNO2 ⇌ H+ + NO2- Ka = 4.5x10-4 = [H+][NO2-]/[HNO2] 4.5x10-4 = (x)(x)/0.690 - x  if we assume x is…

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

A: Set up the equilibrium table for the given acid solution Let x be the unknown concentration…

Q: value

A: When water is self ionized then water and it's ion present in equilibrium so that we used…

Q: What is the pH of a 0.0310 M solution of hydrocyanic acid, HCN (Ka = 4.9 x 10-10)?

A: Answer:- This question is answered by using the simple concept of calculation of pH of weak acid…

Q: What is the pH of a 0.0360 M solution of hydrocyanic acid, HCN (Ka = 4.9 x 10-10)?

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Q: 8. What is the pH of a 0.20 M solution of sodium acetate? The K, for acetic acid is 1.8 x 10-5 ?

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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 0.15 M aqueous solution of a weak acid (HA) has a pH of 4.55 at 25 C. What is the ∆G for the…

A:

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: 2. What is the value of k?

A: OH- + C24H30N3+  C23H30N3-OH The general rate law is   [rate] = k [OH-]^x [ C24H30N3+]^y For the…

Q: What is the pH of a 0.248 M aqueous solution of potasslum acetate, KCH,CO0 at 25 °C? (K, for CH,COOH…

A: 1.) Potassium acetate is a salt of conjugate base of acetic acid. So we would draw ICE table and use…

Q: Both benzoic acid and the sodium salt of its conjugate base, sodium benzoate, are common…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

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: The dissociation expression of a dilute aqueous solution of hydrochloric acid is shown as: HCl(aq)…

A: HCl, a strong acid dissociates completely in aqueous solution to give proton H+, which combines with…

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

A:

Q: 6. What is the pH of a 0.250M solution of methyl amine (CH3NH2, Kb = 4.4 x 104)?

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

A:

Q: What is the pH of a 0.600 M solution of HSO, (Ka = 6.6 × 10°)? (Please show your answers with 3 sig…

A: pH of solution is equal to the negative logarithm of hydronium ion concentration. pH=-log(H3O+) Ka…

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

A: KCl is a salt of strong acid (HCl) and strong base (KOH).

Q: What is the pH of a 0.0680 M solution of hydrocyanic acid, HCN (Ка %3D 4.9 х 10-10)?

A:

Q: 1. Write out the ionization reaction of the following acids and bases and identify their conjugates.…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: If the hydrogen ion concentration of a 0.100 M HC3H5O3 solution is 0.0038 M, what is the ionization…

A:

Q: The pH of asSolution is l,4lI. what is thep what is the TOM]? OH? What is the [H30*]?

A: Given   PH    = 1.411  POH  =   ? [ H3O+ ]   =  ?  [ OH- ]     =  ?

Q: What is the pH of a 0.680 M solution of Ca(NO2)2 (Ka of HNO2 is 4.5 x 104)?

A: Given, The pKa value of HNO2=4.5×10-4 Molarity of Ca(NO2)2= 0.680M.

Q: The ionization constant of lactic acid, CH3CH(OH)CO2H, an acid found in the blood after strenuous…

A: Given: The ionization constant of the lactic acid = 1.36×10-4 Mass of lactic acid= 20.0g Volume of…

Q: What is the molarity of a solution made by dissolving 3.4 g of Ba(OH)2 in enough water to make 450.…

A: