Calculate the molar concentration of OH- in a 0.075 M solutionof ethylamine (C2H5NH2; Kb = 6.4 x 10-4). Calculatethe pH of this solution.

Q: Calculate the pH of a 0.0095 M solution of acetic acid, HCH3CO2,  Given Ka= 1.76x10^-5

A: Acetic acid is a weak acid so it will dissociate very less in the solution. First of all a balanced…

Q: Calculate the concentration of OH and the pH of a solution that is 0.20 M in aqueous NH3 and 0.10 M…

A: This is basic buffer question.

Q: Calculate the pH at 25°C of a 0.45 M aqueous solution of oxalic acid (H2C2O4). (Ka1 and Ka2 for…

A: We have to calculate the pH value.

Q: Calculate the pH of a 0.0500M solution of phenylacetic acid, C6H5CH2COOH and  0.0200M with its salt,…

A: Given,  The pH of a 0.0500M solution of phenylacetic acid, (C6H5CH2COOH) and  0.0200M of its salt,…

Q: ammonia

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Q: Determine the pH level of a solution that has 0.05385 M of Pyridine, given that the Kb of pyridine…

A: Given, Concentration of the Pyridine solution (C) = 0.05385 M  Kb for pyridine = 1.620 x 10-6 Note:…

Q: Calculate the pH of a 0.36M methylamine (CH3NH2) solution, if Kb = 4.4x10-4

A: Solution- methylamine (CH3NH2)  is weak base which ionisation is as follow; CH3NH2+H2O→CH3NH3++OH-…

Q: What is the pH of a 0.1055 M CH3COOH solution (Ka = 1.75 × 10−5)?

A: Given concentration of CH3COOH = 1.75 × 10-5

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

A: Given data; Ka=4×10-8Also, Kw=Ka×KbAnd,Kw=1×10-14 Consider the dissociation of given weak acid as;…

Q: Calculate the pH of a solution that is 0.155 M in NH3 acid and 0.255 M in NH4Cl. The Kb of ammonia…

A: Weak acid and its conjugate base forms a buffer solution similar to a weak base and its conjugate…

Q: Calculate the pH, percent ionization, the concentration of all species at equilibrium and the…

A:

Q: Calculate the pH of 4.0 X10 -4 M KOH

A: Please find your solution below : pH is a measure of acidity or basicity of a substance. It is…

Q: Calculate 3OH-4 and pH for (a) 1.5 * 10-3M Sr1OH22,

A: A pH is a unit to the acidity of the solution. The expression to calculate pH are as follows:…

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: If the kb NH3 = 1.8x10^-5, calculate the mass of NH3 in a 1.0 L ammonia solution whose pH is 11.10

A: Ammonia is weak base hence it dissociated less in aqueous solutions

Q: Calculate the pH of a 0.15M solution of sodium acetate (CH3COONa). What is the percent hydrolysis?…

A: A strong base and weak acid react to form salt and water. The salt will be basic in nature and the…

Q: Calculate the pH and percent ionization of 0.150 M ascorbic acid K31 = 7.9x 10-5 ascorbic acid,…

A:

Q: Calculate the pH of a 0.25M solution of formate ion (HCOO-) at 250 C.  The pKa for formic acid…

A:

Q: Calculate the pH of 0.564 M HC2H3O2 (Ka of HC2H3O2 = 1.8 x 10-5)

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: HCN is a weak acid (Ka = 6.20 x 10-10), so the salt, KCN, acts as a weak base. What is the pH of a…

A: Given: Ka of HCN = 6.20×10-10 KCN = 0.0675 M we have to determine the pH ? Kb = Kw / Ka       = 1 ×…

Q: Calculate the pH of a solution that is prepared by dissolving 0.470 mol of hydrocyanic acid (HCN, K,…

A: Given- HCN= 0.470 mole HC9H7O4 = 0.164 mole Volume of solution = 3.00 L Ka of HCN = 6.17 x 10-`10 Ka…

Q: When 2.0 x 10-2 mole of nicotinic acid (a monoprotic acid) is dissolved in 350. mL of water, the pH…

A: Nicotine is a weak monoprotic acid so it dissociated in less amount. So we can denotes it by HA .

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

A:

Q: Kb for ammonia (NH3) is 1.76 x 10-5     What is Ka for ammonium, its conjugate acid. (NH4+)

A:

Q: The Ka for formic acid (HCO2H) is 1.8x10-4, What is the pH of a 0.20M aqueous solution of sodium…

A:

Q: 5c. What is the pH of a solution which is 0.0400 M in potassium isocyanate (K* CNO") and 0.0300 M in…

A: Given, [K+CNO-] = 0.0400 M            [HOCN] = 0.0300 M As , K+CNO- is a salt it remains as…

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: 9) Calculate the pH of 1.5 M solution of hydroxylamine, NH2OH, at 25°C. К, 3D 9.1 х 10

A:

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: 3. Calculate the pH of a 0.400 M KC2H3O2 (Ka for HC2H3O2 is 1.8 x 10-5)

A: In this question we have to tell the PH of the solution.

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

A:

Q: Calculate the pH of a 1.00L solution which is made up of 0.058 mol acetic acid and 0.030 mol sodium…

A: Given: Moles of acetic acid i.e. CH3COOH = 0.058 mol. Moles of sodium acetate i.e. CH3COONa = 0.030…

Q: What is the theoretical pH of a 0.10 M NH4Cl solution when the Kb for NH3 is 1.8 x 10^-5?

A:

Q: 1) Calculate the pH of a solution prepared by dissolving 1.15 g of sodium acetate, CH3COONa, in 71.0…

A: Find the moles of Sodium Acetate  find the moles of Acetic acid  then find the ph using henderson…

Q: If 0.0751 moles of NaOH is added to 1.00 liters of 0.180 M CH3COOH (acetic acid), what will the pH…

A:

Q: 2. Calculate the pH of a solution containing 0.75 M lactic acid, HC3H5O3, (Keq= 1.4 x 104) and 0.25M…

A: The solution contains a mixture of 0.75 M lactic acid and 0.25 M sodium lactate.

Q: The acid dissociation constant for acetic acid (HC2H3O2, commonly abbreviated HAc) is 1.8 x 10-5.…

A: Given, Acid dissociation constant, Ka = 1.8*10-5. Molarity of acetic acid solution = 0.10M. The…

Q: Quinoline, C9H7N (MW = 129, pKb = 9.5) is used as a preservative for anatomical specimens and to…

A: 1- First calculate the OH- ion concentration : pOH = 14 - pH  pOH = 14 - 8.58  pOH = 5.42  pOH =…

Q: Calculate the pH of a solution that is 0.195M in sodium formate (NaHCO2) and 0.24 M in formic acid…

A: Given: Concentration of  sodium formate (NaHCO2) = 0.195 M            formic acid (HCO2H)  = 0.24M…

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

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

A:

Q: Calculate the molar concentration of OH− ions in a 0.077 M solution of ethylamine (C2H5NH2;…

A: Given, Concentration of the ethylamine solution (C) = 0.077 M Kb for ethylamine (C2H5NH2) = 6.4x10-4…

Q: Calculate the isoionic pH of 6.022 x 1021 molecules of thereonine in 500 mL of solution. (For…

A:

Q: How many milligrams of CH3COOH (fw 60) should be added to 250 mL of water to get pH 3. K. = 1 x 10-5

A: CH3COOH is weak acid in aqueous solution. It will dissociate in solution as below-

Q: Calculate the pH of an aqueous solution that is 0.295 mol L-1 in sodium formate (HCOONA) and 0,.205…

A: Given : Concentration of sodium formate = 0.295 M Concentration of formic acid = 0.205M

Q: Calculate the pH of the following: 1. 0.10 M 2-aminophenol|

A: Given: Concentration of 2-aminophenol (which is a base like NH3 and hence assuming it B) = 0.10 M

Q: Calculate the pH of a solution made by dissolving 0.0100 mol of NH3 in enough water to give 1.000 L…

A:

Q: Calculate the pH of a 0.400 M CH3NH3Cl solution. Kb for methylamine, CH3NH2, is 4.4 × 10-4.

A: