You begin with 100 mL of 0,250 M HCN and add to it 0,75 M NaOH at 25°C (HCN Ka = 6,2 * 10-10) Calculate the pH at the equivalence point. / Calculate the pH after 150 mL of NaOH has been added.

Q: Calculate the pH of 0.225M pyridine (C₅H₅N) Ka = 1.4 x 10⁻⁵

A: Pyridine is a weak base . Ka*Kb = 1*10^-14  Kb = 1*10^-14/1.4*10^-5 = 7.1 *10^-10  Pkb = -log…

Q: Calculate the pH of a solution formed by the reaction of 0.355 grams of sodium with water (see…

A: Given,

Q: You can obtain the pH of a 0.100 M HCl solution by assuming that all of the H3O+ ion comes from the…

A: HCl dissociates completely to its constituent ions as: Auto-ionization of Water: Self ionization of…

Q: LIOH(aq) is classified as a base. The reaction equation with water utilizes which of the following…

A: The compounds that on dissociation in aqueous solution give H+ ions or accept electrons are called…

Q: 6. Calculate the pH of each of the following solutions: a. 2.8x10-4 M Ba(OH)2 b. 5.2x10-4 M HNO3

A: Hydrogen ion concentration is an important parameter of an aqueous solution. The concentration of…

Q: Determine the pH of each of the following solutions. (a) 0.246 M hydrocyanic acid (HCN) (weak…

A: In chemistry, pH ( "potential of hydrogen" or "power of hydrogen") is a scale used to specify the…

Q: What is the pH of the solution after mixing 0.171 g of Mg(OH)2 (MW=58.321 g/mol) with 68.9 mL of…

A: Given,  The pH of the solution after mixing 0.171 g of Mg(OH)2 (MW=58.321 g/mol) with 68.9 mL of…

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: Calculate the pOH of a solution where [H+] = 3.8 x 10-8 Calculate the pH of 2.50M acetic acid,…

A: Question:1 GIVEN:  To Find: pOH of the solution=? Solution: As we know  Now,pOH of the solution…

Q: Assuming complete dissociation, what is the pH of a 4.57 mg/L4.57 mg/L Ba(OH)2Ba(OH)2 solutio

A: We have to calculate the pH of Solution.

Q: Calculate the pH scale of the following: 1. 0.050 M HClO4 2. 6.0 M HCl 3. 4.0 M KOH 4. 0.010 M…

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

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: An acid (HA) dissociates as follows: HA – H* + A minus Arrow should be interpreted as an equilibrium…

A:

Q: Calculate the pH of 0.02354 M CH3 CO2 H and 0.1702 M NaCH3 C02. {Ka = 1.8 x10 °}

A: Given: [CH3CO2H]=0.02354 M [NaCH3CO2]=0.1702 M pH=? Ka=1.8 x 10-5

Q: 6. Determine the concentrations of H,0*(aq) and OH(aq) and the pH in the following solutions of…

A: HCl is a strong acid and will dissociate into H+ and OH- Thus the concentration of H+ and OH- will…

Q: A 0.050 M solution of the salt NaA has a pH of 9.00. Determine the [OH] and the pH of a 0.010 M…

A: Initial pH = 9.0 Calculation of [H+]: pH=-log [H+]9=-log…

Q: 1. Which of the household solutions tested are acids? How can you tell? 2. Which of the solutions…

A:

Q: The pH of a 0.045 M Ca(OH)2 solution is: +1.3467 O +12.954 O +12.653 O -1.3467

A:

Q: What will be the pH of 0.025 M NaOH solution in H2O at 60 °C? (KW60°C = 1.0 x 10-11) A. 1.6 B. 9.4…

A:

Q: Calculate the pH of a 0.100M solution of the weak base NH3. Kb of NH3 1.8×10. %3D 3)

A:

Q: he pH of a 0.282 M solution of ascorbic acid, H2C6H6O6? O×10-5, Ka2 = 1.6×10-12) nswer should be…

A:

Q: Determine the pH of each of the following solutions. (a) 0.549 M hydrogen peroxide (weak acid with…

A:

Q: Determine the pH of a 2.79 M solution of acetic acid (CH3COOH, ka=1.8x10-5)

A:

Q: What is the pH of a 0.450 M solution of the cyanate ion, OCN–? Show the simplifying assumption that…

A: Kb = [HOCN] [OH-] / [OCN-]Given that Kb = 2.8x10-11  2.8x10-11 = X2 / (0.450-X)1.26x10-11-…

Q: You notice that the water in a friend's swimming pool is cloudy and that the pool walls are…

A:

Q: A solution is prepared by diluting 10.1 g HNO 3 (MW=63 g/mol) with water to a volume of 1.5 L. What…

A: Hence the pH =0.97

Q: Calculate the pH of 0.10 M (COOH)½ (aq), oxalic acid. Ka1 = 5.9 x 10-² ; Ka2 = 6.4 x 10-5.

A:

Q: Write and equation for the addition of KI to Ag+(aq) + 2NH3(aq) [Ag(NH3)2]+(aq)

A: Le Chatelier principle says that equilibrium will shift in such a direction so as to undo the effect…

Q: What is the pH of a 0.30 M pyridine solution that has a Kb 1.9 x 10 2 The equation for the…

A: Consider the given information is as follows; Initial concentration of pyridine C5H5N = 0.30 M pH =…

Q: The alkalinity of a river was determined to be 5 x 10-3 mol H+/L and its pH is 8. Calculate the…

A: The term alkalinity may be explained as the technique which is used to examine the water potential…

Q: An aqueous solution is composed of acetic acid and sodium hydroxide. The acetic acid is 0.155M and…

A: The condition given as mixture of weak acid and strong base ,in which base will react with weak acid…

Q: Determine the pH of the resulting solution when the following two solutions are mixed: 50.0 mL of…

A: The given information is: Volume of HNO2 = 50ml = 0.050 L Concentration of HNO2 = 0.500 M Volume of…

Q: What is the Kb of the base PO−34 given that a 0.48M solution of the base has a pH of 12.70? The…

A: Given,         pH = 12.70         [base] = [PO43-] = 0.48 (M) Kb is the equlibrium constant for the…

Q: Based on the Kb determined in the previous part, what is the pH of the initial 1.0 M base solution?…

A:

Q: Calculate the pH of a solution in which the molar concentration of H+ is 1.6 x 10-9. a. 1.60 b.…

A: Given information,     Molar concentration of H+ is 1.6 x 10-9.

Q: What is the ph of a solution with (H3O)= 6.4 x 10- 7th power

A: The concentration of hydronium ion is provided, i.e. [H3O+]=6.4 x 10-7 pH of the solution=?

Q: Given this equation, Sr(OH)2(s)-Sr2* (aq) + 20H (ag), what is the pH of a 2.5 X 10-4 M Sr(OH)2…

A: Given,  The chemical equation,  Sr(OH)2(s) ------> Sr2+(aq) + 2OH-(aq)  Concentration of Sr(OH)2…

Q: 1. (1 point) The [H+] of°coffee is about Ix 10. Its pH is 2. (1 point) The [OH-] of baking soda is…

A: Required formulas: pH = -log[H+] pOH = -log[OH-] pH + pOH = 14

Q: For Nie) + 2H* (? M) H2 (1 atm) + Ni*2 (1 M) E = .01v Calculate the pH of the solution. Given: Nics)…

A:

Q: What is the pH of a grapefruit that contains 0.007 M citric acid solution (CH3O;)? CsH2Or(aq) +…

A:

Q: or the following reaction, predict the products, write the total ionic equation and the net ionic…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Calculate the pH of 0.0985 M CH3COOH.  MM CH3COOH : 60.05 Ka = 1.8 x 10-5

A: Given data,Molarity of CH3COOH=0.0985MMolar mass of CH3COOH=60.05g/molKa=1.8×10-5

Q: Nitrous acid, HNO2 has a Ka = 7.13 x 10-4.   Construct an ICE table describing the ionization of…

A: Given: The conc. of HNO2 solution =  0.700 M  The ionization constant, Ka  = 7.13 x 10-4 HNO2 is the…

Q: Find the pH of a 0.0015 M morphine solution (weak base), Kb = 1.6 x 10−6.

A:

Q: A solution of vinegar corresponds to about 0.400 M. At this concentration, with Ka = 1.8 x10-5 ,…

A: Given: The concentration of vinegar solution = 0.400 M Ka = 1.8 x10-5 We have to calculate the pH of…

Q: Determine the pOH of a 0.461 M C,H5 COOH solution if the Ka of the acid is 6.5 X 10-5 5.48 O 11.74…

A: We will first write dissociation equation of acid, then calculate H+ concentration to find pH and…

Q: Swimming pool disinfectants produce hypochlorous acid upon dissolution. The weak acid ionizes as…

A: Given, Ionization of weak acid : HClO (aq) ⇌ H+(aq) +ClO-(aq)   Ka= 3.0×10-8

Q: 6. Determine the pH a 0.160 M dimethylamine, CH;NHCH; solution. CH;NHCH3 (aq) + H20 (!) =…

A:

Q: For the reaction of hydrazine (N2H4) in water, H2NNH2(aq) + H2O(l) ⇌ H2NNH3+(aq) + OH- (aq) Kb is…

A: Given: The reaction is as follows: H2NNH2(aq) + H2O(l) ⇌ H2NNH3+(aq) + OH- (aq) The initial…