Methylamine, CH3NH2, has a Kb of 4.4 x 10-4.  What is the pH of a 0.54 M solution of methylamine? Your answer should be to two places past the decimal.   Calculate the pH of a 0.21 M solution of hydrocyanic acid (HCN), which has a pKa of 9.31. Your answer should have 3 significant figures (i.e. 9.99).

Q: Calculate the pH of a 0.274 M aqueous solution of quinoline (C9H7N, Kb = 6.3×10-10) and the…

A:

Q: Determine the pH of a solution that is prepared by dissolving 4.7 g of Ba(OH)2 in 5.6 L water at…

A:

Q: Calculation of pH (SHOW CALCULATION FROM THE GRAPH IATTACH GRAPHI 2.Find out pH at equivalent to…

A: Plot of pH vs Volume of NaOH added

Q: Calculate the pH at 25 °C of a 0.80 M solution of potassium butanoate (KC, H,CO,). Note that…

A: Given,  [KC3H7CO2] = C = 0.80 M  pKa value of HC3H7CO2 = 4.82  Calculate the pH = ?

Q: The base protonation constant K, of azetidine (C,H¸NH) is 1.5 × 10 °. 8- Calculate the pH of a 0.80…

A:

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

A: Given-> Kb of allantoin = 9.12 × 10-6 Molarity = 1.3 M

Q: Determine the pH of a solution that is prepared by dissolving 7.4 g of Ba(OH)2 in 8.7 L water at…

A: Given mass of Ba(OH)2 = 7.4 g  Volume of Ba(OH)2 = 8.7 L  pH of the solution = ?

Q: Suppose Al(OH)3 is added to water until no more can be dissolved, giving rise to a solution with a…

A: pH is a scale used to specify the acidity or basicity of an aqueous solution. If the solution is…

Q: The acid-dissociation constants of phosphorous acid (H3PO3) are Ka1 = 7.5 x 10 3, Ka2 = 6.2 x 108,…

A: Dissociation constant are based on ion of H3PO3 .

Q: Calculate the pH (aq., 25 oC) of a 0.100 M triethylamine ((C2H5)3N) solution whose Kb = 1.02 x 10–3.

A: Given,  Molar concentration of (C2H5)3N = 0.100 M  Base dissociation constant of (C2H5)3N = Kb =…

Q: The base protonation constant K, of azetidine (C,H,NH) is 1.5 × 10¯ °. Calculate the pH of a 1.0 M…

A:

Q: Determine the pH of a solution that is prepared by dissolving 6.7 g of Ba(OH)2 in 4.4 L water at…

A: Given that :  Mass of  Ba(OH)2 = 6.7 g  Volume of solution = 4.4 L  We need to determine the pH of…

Q: Amphetamine (C,H13N) is a weak base with a pKp of 4.2. You may want to reference (Page) Section 16.7…

A: Given: concentration of amphetamine (C9H13N) = 250 mg/L molar mass of amphetamine = 135.21 g/mol pkb…

Q: The base protonation constant K, of azetidine (C, H,NH) is 1.5 × 10°. Calculate the pH of a 0.53 M…

A: Given : concentration of solution of azetidine = 0.53 M  Kb for azetidine = 1.5 × 10-8  To calculate…

Q: Diethylamine, (CH3CH2)2NH, has a Kb of 8.6 x 10-4.  What is the pH of a 0.22 M solution of…

A:

Q: Determine the pH of a 0.581 M aqueous solution of KF. For hydrofluoric acid, Ka = 7.0 × 10−4.

A:

Q: For nitrous acid, HNO2, Ka = 4*10^-4. Calculate the pH of 0.69 M HNO2. 1.78 3.56 0.16 12.22 None of…

A:

Q: A.) Calculate the pH of a 0.322 M aqueous solution of triethanolamine (C6H15O3N, Kb = 5.8×10-7).…

A:

Q: Amphetamine (C9H13N) is a weak base with a pKb of 4.2. Calculate the pH of a solution containing an…

A: Given, pKb = 4.2 Concentration of amphetamine (C9H13N) = 230 mg/L   So, there is 230 mg of…

Q: What is the conjugate base of HSO4−? Express your answer as a chemical formula.   What is the…

A: Acid ----> proton + conjugate base Base + proton ----> conjugate acid

Q: The pH of a 0.25 M solution of a weak monobasic base is 8.76 at 25 oC.  Calculate Kb for the base.…

A: Consider the given information is as follows; pH of the solution = 8.76 Concentration of weak…

Q: What is the pH of a 0.0550 M solution of NaOBr? (For HOBr, Ka = 2.5 × 10−9)

A:

Q: Calculate the pH of a 0.005 M Na2HPO4 solution. pKa1 = 2.15, pKa2 = 7.2, pKa3 = 12.35 Make no…

A: For amphiprotic salt having  pH  = (Ka1 + Ka2)/2 Where Ka1 is dissociation constants for acid from…

Q: Determine the pH of a solution that is prepared by dissolving 7.9 g of Ba(OH)2 in 1.9 L water at…

A: Molar mass of Ba = 137.3g/mol  Molar mass of O = 16.00g/mol  Molar mass of H = 1.008g/mol

Q: Determine the pH of a solution that is prepared by dissolving 7.2 g of Ba(OH)2 in 4.7 L water at…

A: 1. Molarity of Ba(OH)2 :  number of moles of solute (n) in 1 L solution is called molarity (M)  M…

Q: What is the pH of a solution at 298 K that is prepared by diluting 275 mL of 0.551 M Ca(OH)2 to 2.50…

A:

Q: acid base K K₂b name formula name formula 10 nitrous acid HNO₂ 4.5 x 10 aniline |C HạNH, | 4.3 × 10…

A: Ka value of acetic acid = 1.8×10-5 Ka value of HNO2 = 4.5×10-4 Kb value of aniline = 4.3×10-10…

Q: If the pH of a 1.00 in. rainfall over 1700 miles^2 is 3.40, how many kilograms of sulfuric acid,…

A: Height of rainfall = 1.00 inch = 0.0254 m Area of rainfall = 1700 miles² 1 mile² = 2.59×10⁶ m²…

Q: What is the pH of 0.133 M trimethylammonium iodide, (CH3)3NHI? At 25°C, the Kb of trimethylamine,…

A: Given Concentration of triethylammonium iodide is 0.133M Kb for triethylamine is 6.3 X10-5 We have…

Q: Calculate the pH of the following solutions: a. 0.34 M hydrocyanic acid. b. 1.5 M solution of…

A: pKa of hydrocyanic acid is 9.2

Q: Determine the pka of an acid whose concentration is 0.100M and pH is 2.86.

A:

Q: What is the pH of a solution of 50.00 mL of 0.07500 M hydroxyacetic acid, Ka = 1.48 x 10^-4, after…

A: Concentration of solution = 0.07500 M Acidic constant of solution = 1.48 × 10-4       Volume of…

Q: What is the pH of 0.0050 M NH3 (Kb = 1.8 x 10-5) 10.48 3.52 11.70 2.30

A: Given that the concentration of NH3 is 0.0050 M. NH3 is a weak base and the concentration of…

Q: Based on the data in the table below, which of the following is the strongest base? Organic Acid…

A: Sodium propionate has the strongest basicity.

Q: The base protonation constant K, of azetidine (C,H,NH) is 1.5 × 10 Calculate the pH of a 1.1 M…

A:

Q: Cyanic acid (HCNO) has Ka = 2.0 x 10-4 What is the conjugate base and its Kb value?

A: A conjugate acid is formed by the removal of -OH  from a base and a conjugate base is formed by the…

Q: The Kb for four bases are CN'- = 1.6 x 10$, CO3²- = 2.1 × 104, NH3 = 1.8 × 10$, F'- = 1.5 × 10-1".…

A:

Q: Calculate the pH that results when 2.35 mL of a 0.0125 M aqueous solution of KOH is added to 23.50…

A: On addition of KOH, it reacts with the conjugate acid CH3NH2 and hence increases the concentration…

Q: For equal concentrations of acids such as hydrofluoric acid, acetic acid, and benzoic acid, does the…

A: Ka is the dissociation constant of an acid. For example, the dissociation of HCl can be written as…

Q: Calculate the pH of a solution that is 1.8*10^-3 M morphine if the pKa of its conjugate acid is 8.21

A: We have to predict the pH of the morphine solution.

Q: provide an explanation of the graphs (a) and (b) the relationship of the biological activity of the…

A: Sulfonamide (also known as sulfa drugs) is the fundamental functional group of more than a few…

Q: Given Methylamine (CH3NH2). Calculate pH of a 0.0010 M solution of this base. Given Kb for CH:NH2 is…

A: As per guidelines if multiple q uestions , first question is allowed to answer , please post…

Q: To find the pKb of the conjugate base of a weak acid, one must subtract the pKa of the weak acid…

A: Ka and Kb are the dissociation constant of weak acid and weak base respectively. pKa is the -log of…

Q: Determine the pH of a solution that is prepared by dissolving 5.2 g of Ba(OH)2 in 2.8  L water at…

A:

Q: The base protonation constant K, of trimethylamine ((CH,) N) is 6.31 × 10 °. 3 Calculate the pH of a…

A:

Q: [OH-] = 7.9 x 10-3 M Express your answer using two dècimal places. ΑΣΦΦ pH =

A: Given that:  [OH-] = 7.9 × 10-3 M

Q: What is the pH of a solution of 0.20 M HNO2 containing 0.10 M NaNO2 at 25 °C. The Ka of HNO2 is 4.5…

A: pH of a solution tells about the nature of the solution whether it is acidic or basic. The values on…

Q: Calculate the pH of a 0.0555 M aqueous solution of the weak base ethylamine (C2H5NH2, Kb =…

A: For C2H5NH2 ,  Kb = 4.30 × 10-4 C2H5NH2 + H2O ⇌ C2H5NH3+ + OH- Kb = [C2H5NH3+] [OH-] / [C2H5NH2]…