Given that methylamine, CH3NH2, has a Kb of 4.4 x 10-4, what is the pH of a 0.20 M aqueous solution of methylamine?

Q: Acetic acid (CH, COOH, K, = 1.80 x 10-) is a weak acid, so the salt sodium acetate (CH, COONA) acts…

A: Given, Ka = 1.8 × 10-5 , [CH3COONa] = 0.566 M The reaction : CH3COONa + H2O ⇔  OH- + CH3COOH

Q: The acid-dissociation constant, Ka, for a particular acid is 4.57 x 10. What is the…

A: We know that,  Ka × Kb =10(-14) Given that, Ka = 4.57 × 10(-3) So,

Q: The pH of black tea is 5.5, while the pH of Coke is 2.5. Which of the following correctly describes…

A: To know the concentration of H+ ion , pH scale is introduced  Negative logaritham of H+ ion…

Q: What is the pH of a 0.0470 M solution of methylamine (CH&NH2, Kb = 4.4 x 10 4)?

A: Calculate the hydroxide ion concentration released by methylamine. OH- = KbCOH- = 4.4 × 10-4 ×0.047…

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: Calculate the pH of a 0.081M NaCN solution at 25 degrees Celsius. Ka (HCN) = 4.9 x 10^(-10). You…

A: Given, Concentration of NaCN solution = 0.081 M Ka of HCN = 4.9 × 10-10 pH of the solution = ? Note:…

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 0.21 M solution of methylamine (CH3NH2, Kb = 4.4 x 10–4) at 25 degrees C?

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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: Calculate pH, pOH, [OH-(aq)] and [H;O*(aq)] of a 350.0 mL aqueous solution containing 1.20 g calcium…

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Q: What is the pH of a 0.0650 M solution of methylamine (CH₃NH₂, Kb = 4.4 × 10⁻⁴)?

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Q: Calculate the pH of the following solutions: a. 2.0 M morphine hydrochloride, C,„H,„NO,•HCI (pK, =…

A: In order to solve this question, we will be using simple concepts of chemical and ionic equilibrium.…

Q: saturated aqueous solution of calcium hydroxide, Ca(OH)2, has a pH of 12.2. What is the…

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Q: The pOH of an aqueous solution of 0.354 M acetylsalicylic acid (aspirin), HC9H7O4, is

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Q: What is the pH of an aqueous solution of 1.45×10-2 M nitric acid?

A: Nitric acid i.e HNO3 is a strong acid. Hence it dissociates into ions completely as per the…

Q: What is the pH of a 0.0490 M solution of methylamine (CH₃NH₂, Kb = 4.4 × 10⁻⁴)?

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Q: Methylamine, CH3NH2, has a Kb = 4.40 x 10-4. What is the pH of a 0.450 M  solution of methylamine?

A: Methylamine, CH3NH2 is a weak base which undergoes partial dissociation in aqueous medium. Let the…

Q: what is the ph of a 0.85 M solution of pyridine (C5H5N, Kb = 1.70 x 10 ^-9)

A: Pyridine is a weak base. pOH of a weak base. pOH = -log [OH-] pH = 14 - pOH For a weak base like…

Q: The acid dissociation constant K, of hydrocyanic acid (HCN) iS 6.2 x 10 10 Calculate the pH of a…

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Q: Calculate the pH of 0.17M propanoic acid CH,CH,COOH, found in the sample analysis of sewage water.…

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Q: What is the pH of a 0.050 M triethylamine, (C2HS)3N, solution? Kb for triethylamine is 5.3 x 10-4

A: We should know that the amine us a basic Compound that will dissociate in solution to give basic…

Q: What is the pH of a solution when 2. 75 g of ammonium chloride, NH4CI, is used to make 100 cm3 of…

A: Number of Mole-ratio of given mass of substance to the molar mass of substance is called number of…

Q: The acid-dissociation constants of phosphoric acid (H3PO4) at 25 degrees Celsius are Ka1 = 7.510-3,…

A: Given data contains, Molarity of aqueous phosphoric acid solution is 2.5M.…

Q: The acid-dissociation constant of hydrocyanic acid (HCN) at 25.0°C is 4.9 x 10 10. What is the pH of…

A: pH of a solution is used to define acidity or basicity of the solution. At room temperature, pH of…

Q: What the pH of 0.10 M solution of methylamine (Kb for CH3NH2 is 4.4 x 10*)?

A: A numerical problem based on pH of the weak base, which is to be accomplished.

Q: The acid dissociation constant K, of acetic acid (HCH3CO,) is 1.8 x 10. Calculate the pH of a 0.52M…

A: Given that : The acid dissociation Ka of acetic acid = 1.8 x 10-5 We have to calculate the pH of a…

Q: calculate the pH and pOH of a 4.3 x10-3M solution of NaOH

A: Concentration of NaOH = 4.3 x 10-3M NaOH is a strong base and it can dissociate into its ions…

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

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Q: What is the pH of a 0.0930 M solution of methylamine (CH₃NH₂, Kb = 4.4 × 10⁻⁴)?

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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: The pOH of an aqueous solution of 0.313 M acetylsalicylic acid (aspirin), HC9H704-

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Q: Calculate the pH of a 0.50 M solution of sodium formate (NaHCOO) given that the Ka of formic acid…

A: Given,  The pH of a 0.50 M solution of sodium formate (NaCOOH) is: The Ka of formic acid (HCOOH) is…

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: What is the pH of a 0.0270 M solution of hydrocyanic acid, HCN (Ka = 4.9 × 10¬1º)?

A: Here, hydrocyanic acid is weak acid as compared to mineral acids , thus when it ionized it will form…

Q: Question attached

A: pH is a measure of acidity of the solution. pH of a salt of a weak acid and strong base may be…

Q: What is the pH of a 0.21 M solution of methylamine

A: Given :-  Initial concentration of CH3NH2 solution = 0.21M  Kb = 4.4 × 10-4  To calculate :-  pH of…

Q: Methylamine, CH3NH2, has a Kb = 4.40 x 10-4.  What is the pH of a 0.290 M  solution of methylamine?

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Q: What is the pH of a 0.0570 M solution of hydrocyanic acid, HCN (Ka = 4.9 x 1010)? %3D

A: HCN is a weak acid. Hence it will dissociate partially as per the reaction HCN -----> H+ + CN-

Q: The base protonation constant K, of allantoin (C,H,N;0;NH,) is 9.12 x 10-°. Calculate the pH of a…

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Q: The Kb of pyridine, C5H5N, is 1.7 x 10−9.  Calculate the pH of a 0.124 M solution of pyridinium…

A: Given: The Kb of pyridine (C5H5N) = 1.7 x 10−9  The molarity of the solution of pyridinium bromide…

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: What is the pH of a 0.0500 M solution of hydrocyanic acid, HCN (Ka = 4.9 × 10⁻¹⁰)?

A: Given -> Molarity of HCN = 0.0500 M Ka = 4.9 × 10-10

Q: The hydroxide ion concentration, [OH*], of an aqueous solution of 0.591 M trimethylamine (a weak…

A: Trimethylamine dissolved in H2O and since it is a weak base so it dissociates partially as follows

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: Calculate the pH of 0.400 M solution of ascorbic acid, HC6H;O6. (Ka of ascorbic acid = 6.80 x 105)

A: In this question, we want to determine the pH of this solution. How we can determine, you can see…

Q: ph of 0.10 M NaNO2 (Ka of HNO2 is 4.5 x 10-4 ?

A: Given information: 0.10 M NaNO2 Ka of HNO2 is 4.5 x 10-4

Q: Determine the pH of a 0.15 M solution of Ca(BrO2)2 at 25 °C. At the same temperature, Ka for HBRO, =…

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Q: What is the pH of a 0.025 mol/L solution of methanoic acid K=1.8x10

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Q: The pH of a solution containing a hydrogen ion concentration of 1 x 10-5 is:  A. 3 and its pOH is 6…

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