The pH of 0.17 M of HCN is Ka of HCN = 1.6 x 10 10 %3D (Write your answer to 2 d.p. eg: 7.65)

Q: 19) Calculate the pH of a solution (aq., 25 °C) prepared by dissolving 48.026 g of ammonium nitrate…

A: Given:   Mass of NH4NO3=48.026g   Molar mass of NH4NO3=80.043 g/mol   Volume =2.00L…

Q: 5. A solution is prepared by adding 1.00 x 1013 mole of strong base NaOH to 1.00 L of aqueous…

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

Q: Calculate the pH of 0.400 M pyridinium bromide, C5H5NHBr. K of pyridine, C5H5N, = 1.7 x 10*" Provide…

A: Given data,Molarity of C5H5NH+=0.400MKb=1.7×10-9

Q: The pH of a 0.15-M solution of HSO4− is 1.43. Determine Ka for HSO4− from these data.

A: Given, initial concentration of HSO4− = 0.15 M            pH = 1.43 We know that, pH is the negative…

Q: (4c-301-2.56) What is the HT concentration of a solution with a pH of 2.56? Write your answer to…

A:

Q: Determine the pH of a 0.16M NH3 where kb = 2.4 x 10-6 %3D Your answer should follow the format: a)…

A: a) The concentration of NH3 = 0.16 M  Kb = 2.4 × 10–6                                            NH3…

Q: Calculate the pH of a solution that is 0.0510 M in а. Н3РОД (Ка1 — 7.1 х 10 3). pH = b. НзРОз (Кal =…

A: It's a multiple part question.   Given information, Concentration of the given compounds = 0.0510 M…

Q: Determine the pH of a 0.100 M aqueous solution of NaOcI. Data: pK,[HOCI] = 7.40 А 10.20 B 9.75 C…

A: 1- First we will see the Ka from its pKa :  pKa = -log(Ka)  -pKa = log(Ka)  10-pKa = Ka  Ka =…

Q: What is the pH of a solution containing a mixture of 0.50 M HCN and 0.040 M NaCN? (Ka = 4.9 x 1010…

A: Answer :- HCN is a weak acid and NaCN is its conjugate Salt . This solution is basically acts as a…

Q: Carbonated cola is more acidic than coffee or even orange juice because cola contains phosphoric…

A: • The values provided in the question are:-      i) pH of a carbonated cola solution = 3.120    • We…

Q: What is the pH of a solution of 5.94 M of HASO, which has K,= 5.1 x 10- Round and report your answer…

A: Concentration of H3AsO3 is 5.94 M. The value of acid dissociation constant is 5.1×10-10.

Q: 16- The pH value of 0.1 M ammonium hydroxide and 0.01 M ammonium chloride is - -- O 8.26 O 10.26 O…

A:

Q: What is the pH of the solution containing 0.01 mol of CH3COOH and 0.820 grams of NaCH3COO in 100 mL…

A: Calculation of pH.

Q: What is the pH of 0.0050 M Ba(OH)2(aq) 2.00 11.70 2.30 12.00

A: pH scale is the measure of acidity or basicity for a solution. Acidity is defined by the presence of…

Q: What is the pH of a 0.481 M solution of NH4Br? For NH3, Kb = 1.8 × 10–5

A:

Q: What is the pH of a 0.580 M solution of NaCN (Ka of HCN is 4.9 x 1010)?

A:

Q: Calculate the pH of the following solutions at 298K: (a) potassium hydroxide 2.4 x 104 mol dm3 (b)…

A: To calculate the pH of the below given solution: molarity of KOH = 2.4×10-4 mol dm-3 molarity of…

Q: Calculate the ph of a solution that is made by dissolving 6.45g of NH4Cl(53.49g/mol) in enough water…

A: First calculate molarity by mole/volume. Then use weak base concept to get pH

Q: Q49 (Ex. 13.6) In chemistry, the pH value . measure.. acidity. The pH value is defined by pH where…

A: pH :-  It is defined as the negative logarithm to the base 10 of hydrogen ion (H+ ion )…

Q: The pH of a 1.5M solution of boric acid (H, BO,) is measured to be 4.53. Calculate the acid…

A: Also given that : pH = 4.53  We know that, pH = -log[H3O+] So, [H3O+]=10-4.53 = 2.95 x 10-5 M

Q: What is the pH of a solution prepared by dissolving 1.00 g of the weak acid HA (molar mass = 138.95…

A:

Q: Calculate the pH of a 0.033 M Na2SO3 solution. pK1 = 1.66 and pK2 = 6.85 for sulfurous acid (H2SO3)…

A:

Q: What is the pH of a 0.380 M solution of NACN (Ka of HCN is 4.9 x 1010)?

A:

Q: The pH of a 1.20 M ammonia NH3 solution (K, = 1.8 x 10 5) is: %3D Your Answer:

A: Given: The Kb for NH3, = 1.8×10-5 The concentration of NH3, (C) = 1.2 M.

Q: Find the pH of 0.54 M C5H5N(aq) given that its Kb = 1.7×10-9.

A:

Q: The pH of a solution at 25°C in which [OH]=2.0 x 10 is: 4.69 9.30 3.30 4.76 9.52

A: hydroxide ion concentration can be used to find pOH which then be used to find the pH.

Q: pH of 0.1 M NaOAc: 8.81     [H+] for NaOAc   [OH−] for NaOAc     Ka or Kb Value…

A: The hydrogen ion concentration can be determined as follows: pH = -logH+H+ = 10-pHH+ = 10-8.81H+ =…

Q: What is the pH of a 0.0620 M solution of hydrocyanic acid, HCN (Ka = 4.9 × 10¬1º)? %3D

A: Given data,Molarity of HCN=0.0620MKa=4.9×10-10

Q: What is Kb for the conjugate base of HCN (Ka = 4.9 × 10⁻¹⁰)?

A: We have given that  What is Kb for the conjugate base of HCN (Ka = 4.9 × 10⁻¹⁰)?  Acid : Acid is…

Q: The pH of a 0.46M solution of propanoic acid (HC,H,O,) is measured to be 2.60. Calculate the acid…

A:

Q: 5.55 grams of solid calcium chloride, CaCl2, was dissolve in 250 mL of water to make a CaCl2…

A: given: mass = 5.5 g molar mass of CaCl2 = 110.98 volume = 250 mL = 0.25 L pH = ?

Q: A solution is prepared at 25 °C that is initially 0.47M in chloroacetic acid (HCH,CICO,), a weak…

A: Buffer solution: The solution that resists the change in pH is known as a buffer solution. The…

Q: Calculate the ratio at pH 9.90. [HCO,] [HCO5] * TOOLS x10

A: Henderson - Hasselbalch equation:

Q: Solutions of sodium salts of the acids in the following table are prepared with an initial…

A: Dissociation of a weak acid is given by: HA  ⇌  H+  +  A- The acid dissociation constant of this…

Q: Acid Ka HC3HSO3 1.4 x 104 HOCN 3.5 x 104

A: Given acids,      Lactic acid - HC3H5O3      Cyanic acid - HOCN

Q: The pH of a 0.20-M solution of HF is 1.92. Determine Ka for HF from these data.

A: The Bronsted-Lowry acid-base theory was purposed by Bronsted and Lowery is called Bronsted-Lowry…

Q: 20- The pH of (0.2M) of Ca(OH)2 is 0.397 13.302 13.603 0.698

A:

Q: Calculate the ph of a solution that is prepared by dissolving 8.57 NaC2H3O2(82.03g/mol) in enough…

A:

Q: What is the pH of a solution that is 0.041 M in NH4Cl?

A: NH4Cl salt can be formed from weak base NH4OH and strong acid HCl. So it is a salt of strong acid…

Q: Why is the pH of water at 25oC equal to 7.00?

A:

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: Sodium hypochlorite solution, sold as “chlorine bleach,” ispotentially dangerous because of the…

A: NaClO is a salt of strong base NaOH and weak acid HClOThe anionic part ClO- undergoes anionic salt…

Q: The pH of 3 gm of Ammonia in 0.2L of water, ?Kb=1.8x10-5 اخترأحد الخيارات a. 11.6 b. 2.39 с. 3.29

A: The concentration of ammonia in the solution is: Molarity=Number of molesVolume Given, Mass of…

Q: What is the pH of a 0.2 M solution of sodium propionate C2H5COONA (salt) solution? (For propionic…

A: pH is the potential of the hydrogen atom, pH is a logarithmic function, it is found from the…

Q: The pH of a solution at 25°C in which [OH-] = 3.7 x 10-5 M is: 4.43 3.70 4.78 8.6 D 9.57

A: Given OH- = 3.7 x 10-5

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

A:

Q: Caffeine (CHiON O2) is a weak base with a pKof 10.4. Calculate the pH of a solution containing a…

A:

Q: The pH of normal rain water is 5.80. What will be the pH of rainwater that falls near a coal-burning…

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