Calculate the pH of a 0.5 Litre solution wich prepared by adding (50ml NH3) to a sufficient amount of pure water at (25°C). Consider: (at 25°C) Molar mass of NH3: 17g/mol Density of NH3: 0.75kg/m Kw= 1014 K(NH3)= 1.8 x 10s
Q: 2), 3), 4)
A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…
Q: a) Define and write the expression of Kw for the dissociation of water (H2O). Kw is the…
A: expression of Kw for the dissociation of water (H2O). ph of KOH aq kw
Q: A chemist takes 8.579 mL of liquid acetic acid, CH₃COOH (molar mass: 60.052 g/mol) with 1.05 g/mL…
A: Given, A chemist takes 8.579 mL of liquid acetic acid, CH₃COOH (molar mass: 60.052 g/mol) with 1.05…
Q: Calculate the pH of a solution made by mixing 25.00ml. of 0.1056M HCI with 13.23ml of 0.1138M NAOH…
A: The acid solution is the solution in which loss of proton takes place and the pH of the solution is…
Q: 4g of Sodium hydroxide pellets NaOH are dissolved in water to prepare 200 ml of solution (S.). From…
A:
Q: A solution is prepared by diluting 28.6mL of 15.98 molar nitric acid in a total volume of 500mL.…
A:
Q: When titrating 15 mL of hydrazoic acid (HN3) 0.000489 mol/L, with KOH 0.000517 mol/L: What is the…
A: Here we are required to find the pH of the solution
Q: A chemist takes 8.579 mL of liquid acetic acid, CH₃COOH (molar mass: 60.052 g/mol) with 1.05 g/mL…
A:
Q: The pH and Kh of 0.1N NH4CI solution, if Kb for NH4OH at 25°C is 1.8x10-5 :will be respectively…
A: Kh=kWkC pH + pOH = 14 From Ostwald's dilution law , pOH=-logkbxc Where c is the concentration of…
Q: A 0.150 M solution of a weak base has a pH of 9.15. What is the base hydrolysis constant, ?b, for…
A:
Q: Calculate the pH of the solution that results when 32.0 mL of 0.1980 M NH3 is (This problem requires…
A:
Q: Due to the pandemic Covid-19, the uses of hand sanitizers are very important among us. Predict and…
A: Hand sanitizer is a neutral solution. When red cabage indicator was added to it becomes purple in…
Q: A solution Is prepared at 25 °C that Is Initlally 0.083M In benzolc acid (HC,H.CO,), a weak acid…
A: According to Henderson- Hassleblach equation pH = pKa + log[conjugate acid/acid]
Q: A 20-year-old student with a coffee addiction had an episode of extreme hyperventilation due to…
A: The given information is: pH = 7.53 Conc. of bicarbonate ion = 22mmol/L The formula to calculate…
Q: Which of the following is the pH of a weak alkali? (1 Point) 1 2 3 457 89 10 11 12 13 14 blue purple…
A: pH is the negative log of H+ ions. Towards 1 it is most acidic and towards 14 it is most basic/…
Q: In the laboratory, a general chemistry student measured the pH of a 0.354 M aqueous solution of…
A: Given that: pH = 0.354 [C8H10N4O2] = 12.063 To find: Kb
Q: 0.1 M NaC2H3O2 solution, using the given pH data, write net-ionic equation for hydrolysis:
A: Hydrolysis net ionic equation has the general form as: An ion + water-----> a molecule or ion +…
Q: c) What mass of NaC₂H,O,₂ must be dissolved in 0.300 L of 0.25 M HC₂H₂O₂ to produce a solution with…
A: mass of NaC2H3O2 ,sodium acetate = ? Volume of NaC2H3O2 = 0.300 L [HC2H3O2 ] = [CH3COOH] = 0.25 M pH…
Q: A medicine has to be prepared at exactly pH 7. Different types of acids have to be added in the…
A: Here, given that: A medicine is prepared at pH 7 and different acids needs to be added. To find: the…
Q: (0.1mol) of NaoH was added to 1L of a solution containing a weak acid and its base salt had the same…
A: Answer: Solution weak acid and its basic salt is a buffer solution whose pH is calculated by…
Q: (from the in class activity) - Suppose you dissolve three tablets of Sudafed (R), each containing…
A:
Q: A 100.0 mL of 0.1 M HCI solution is mixed with a 50.0 mL of 0.1 M of KOH solution. The resultant…
A:
Q: Calculate the pH of solution prepared by dissolving 0.10 mol of NH.Cl and 0.40 mol of NH; in…
A:
Q: (from the in class activity) - Suppose you dissolve three tablets of Sudafed (R), each containing…
A: It is a salt made from weak base and strong acid. So, pH = 0.5pKw - 0.5pKb - 0.5logC ...(1) Total…
Q: The PH of a solution of HCL in water is found to be 1.20.What volume of water would be added to…
A: Formula used M1V1= M2V2
Q: A solution containing 15.0mL of 4.00MHNO3 is diluted to a volume of 1.00L. What is the pH of the…
A: The given volume and molarity of HNO3 are 15.00 mL and 4.00 M. The given volume of diluted solution…
Q: A solution is prepared at 25 °C that is initially 0.12M in acetic acid (HCH,CO,), a weak acid with…
A:
Q: hat will be the pH of a buffer solution prepared from 0.20 mol NH3, 0.40 mol NH4NO3, and just enough…
A:
Q: A solution is prepared at 25 °C that is initially 0.29M in chloroacetic acid (HCH,CICo,), a weak…
A: Given information is as follows; Concentration of chloroacetic acid = HCH2ClCO2 = 0.29…
Q: . For the buffer system, what will be the pH when (a) 15.0 ml of 0.500 M HCl and (b) when 15.0 ml of…
A:
Q: Calculate the pH and pOH of a solution resulting from dissolving 0.75 grams of perchloric acid in…
A: Given: Mass of perchloric acid i.e HClO4 = 0.75 g And volume of solution = 1500 mL = 1.500 L…
Q: 25.00 mL of 0.10 M hydrochloric acid solution is combined with 25.00 mL of 0.10 M hydrocyanic acid…
A: An acidic substance is a substance that can give H+ ions. They are corrosive and sour in nature. On…
Q: A buffer was prepared by mixing 1.00 mole of ammonia and 1.00 mole of ammonium chloride to form an…
A:
Q: A solution was prepared by 0.250 moles of ammonium chloride to 500.0 mL of 0.35 M ammonia. Given the…
A: For NH3 , pKb = -log Kb = -log ( 1.86 x 10-5 ) = 5 - log 1.86 = 5 - 0.27 = 4.73 Concentration of…
Q: 100ml of solution contains 0.4 gm caustic soda. in dissolved state. If 50ml of this solution is…
A: Caustic soda is NaOH with molar mass = 40 g/mol Hence moles of NaOH taken X molar mass of NaOH =…
Q: A solution is prepared at 25 °C that is initially 0.34M in acetic acid (HCH,CO,), a weak acid with…
A:
Q: A mixture of a 25.0-mL 0.100 M HCl solution and a 15.0-mL 0.250 M NaOH solution was used. The…
A:
Q: A CHM 122 student combines 42.2 mL of 0.413 MHBR with 32.7 mL of 0.384 M KOH. What is the pH of the…
A:
Q: A chemist takes 8.579 mL of liquid acetic acid, CH₃COOH (molar mass: 60.052 g/mol) with 1.05 g/mL…
A:
Q: What is the pH of an aqueous solution of 0.005 M C6H5O- at 298 K of the Ka for phenol at the given T…
A: Given: Concentration of C6H5O- = 0.005 M And Ka of C6H5OH = 1.0 × 10-10
Q: You are a creative consultant of an advertising firm commissioned by DOH to conceptualize and…
A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…
Q: The pH and Kh of O.1N NH4CI solution, if Kb for NH4OH at 25°C is 1.8x10-5 will be respectively equal…
A: Value of pH is used to measure extent of acidity or basicity of a solution. At room temperature,…
Q: Polymers are not very soluble in water, but their solubility increases if they have charged groups.…
A: Casein is the type of protein that is found in skim milk and coagulated at a certain pH. It is one…
Q: A solution is prepared at 25 °C that is initially 0.28M in propanoic acid (HC,H,Co,), a weak acid…
A:
Q: prepared
A: Equilibrium Reaction is : F^-(aq) + H2O(l) <------> HF(aq) + OH-(aq) Major species are :…
Q: The pH of a solution prepared by mixing 50.0 mL of 0.125 M NaOH and 30.0 mL of 0.125 M HNO3 is…
A:
Step by step
Solved in 3 steps with 3 images
- For water having a total alkalinity of 1.00x10^-3 mol/L and a pH of 10.34 what is the percentage contribution to alkalinity from CO32-? Please answer very soon will give rating surely) A truck driver carrying a load of lead nitrate (Pb(NO3)2) lost control of his semi- truck after hitting a patch of ice and crashed the truck into Blue Lake, which was right next to the highway. Despite the best efforts of the emergency workers, several of the crates containing lead nitrate were damaged, and the highly soluble compound dissolved immediately. Assuming the lake is initially at circumneutral pH (7), and that the spill resulted the in a total lead concentration of 10-3 M within the lake. Based on the following information, will PbO(s) precipitate out of Blue Lake. Assume all lead nitrate dissociates into Pb+2 and NO3-, no other sources of lead exist in the lake and that no other reactions besides the equations shown below occur. PbO(s) + 2H+ ⇌ PbO(s) + H+ ⇌ PbO(s) + H2O ⇌ PbO(s) + 2H2O ⇌ Pb2+ + H2O PbOH+ + H2O Pb(OH)2o Pb(OH)3- + H+ logKs0/ksp =14 logK1=3.4 logK2=-0.5 logK3=-121) For an open system with PCO2=10−3.5 atm what fraction of the total carbonate is in the form of CO32− at pH 10.63? 2) Using paleolimnological methods it is possible to estimate past pH values of surface waters. If the estimate of pH is 5.787 , what is the corresponding PCO2? in atm.
- From the given information in the table calculate for both titration1 and 2: 1)moles of thiosulphate titrated (mols) 2) moles of hypochlorite (mols) 3) mass of sodium hypochlorite (g) 4) wt% of sodium hypochloriteSketch a plot of the fraction of species, f, vs pH for Tyr. Show your calculations for several points on the plot. You want to calculate the fraction of the species for more than 3 of the points. pKa’s for Tyr is 2.24, 9.04, and 10.10.The reaction A(g) + B(g) ↔ C(g) + D(g) has ΔGrxn° = -28.62 kJ mol-1 and Kp = 0.63 at 980 °C. A rigid cylinder at that temperature contains 1.2 atm of A, 0.20 atm of B, 0.30 atm of C, and 0.27 atm of D. What is the reaction Gibbs energy?
- 0.1 g of the mixture of na2so4 and k2so4 is taken and 100 ml of solution is prepared. 10 ml of this prepared solution is placed in a beaker and some distilled water is added. A mass of 15.5 mg is obtained by precipitation with Bacl2 at PH=5, then filtering and bringing to a constant weight at 800 °C. Calculate the percentages of Na2so4 and K2so4 in the mixture accordingly.Consider an aqueous solution of pyridine, C5NH5(aq), with F = 5.0 mM, at 1 bar and at 298 K. Pyridine is a weak Brønsted-Lowry base. Structure of pyridine Write down the only material balance equation..Consider an aqueous solution of pyridine, C5NH5(aq), with F = 5.0 mM, at 1 bar and at 298 K. Pyridine is a weak Brønsted-Lowry base. Write down the equation for charge balance.
- A 370.00 mL solution of 0.00185 M A3B4 is added to a 390.00 mL solution of 0.00100 M C3D4. What is pQsp for A3D4?Use the systematic treatment to get the concentrations of all the species in a solution of:a.) 0.35 M CaF2 in waterThe solution of total volume 0.50 L was prepared by the addition of 0.10 moles of KF to sifficient water. What are the major species of the solution and pH ?