Q: 1. The solubility of Ag₂SO₄ in water at 25 °C is 0.0155 M. What is Ksp for Ag₂SO
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Q: (i) Me3Sn. OEt Pd(PPH3)4/CO A (ii) Br Ph Pd(PPH3)4, KOH -B(OH)2 В Br +
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Q: Calculate the pH of an aqueous solution prepared by dissolving 5.61 g of KOH pellets in water and…
A: Mass of KOH = 5.61 g Volume = 0.500 L Molar mass of KOH = 39.10 + 16.00 + 1.008 = 56.108 g/mol pH of…
Q: The pH of a 0.02M solution of a weak acid was measure at 4.6 a. What is the [H+] in this solution?…
A: Given : pH = 4.6 Molar concentration of weak acid = 0.02 M
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Q: How did you know to make Fe 54 x and Fe 57 .0825 -x
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A: HClO3(aq) is a strong acid, whereas HClO2(aq) is a weak acid with Ka = 1.1*10-2 Given [HClO3(aq)] =…
Q: What is the solubility of La(IO₃)₃ in water? (Ksp of La(IO₃)₃ is 7.5 × 10⁻¹²)
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Q: At 25C, 0.00188 g of AgCl dissolves in one liter of water Write a balanced chemical equation What…
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Q: Salts of hypoiodite ion behave as a weak base, undergoing hydrolysis in water according to the…
A: Given Reaction:- IO- + H2O <----------> HIO + OH- Kh = 0.00044 Kh = [HIO ] [ OH- ] / […
Q: 24) What is the pH of a 0.570 M solution of aniline? Kb = 7.4 x 10-10 A) 2.6 В) 4.7 C) 11.4 D) 9.3…
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Q: b) A solution of chlorine in water is used as a disinfectant. The equation below indicates the…
A: Rxn of chlorine with water forms hypochlorous acid. This reaction is termed as hydrolysis rxn. Cl2 +…
Q: What is the pH of a saturated solution of magnesium hydroxide, Ca(OH)2 (slaked lime)? Kep for…
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Q: Why does dry HCl gas not change the colour of the dry litmus paper?
A: Colour of the litmus paper is changed by the hydrogen ions. Dry HCl gas does not contain H+ ions.
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Q: E°cell = 1.9791 ΔG° = -381.91 What is K?
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Q: Fe3+ + OH- FEOH²+ + OH- Fe(OH)2* + OH- Fe(OH)3(ferihydrite) + OH- Fe(OH)4
A: pH is the negative logarithm of the hydrogen ion concentration. It is a measure of acidity or…
Q: A0.300 M solution of nitrous acid (HNO2) had a pH of 2.07. What is the Ka value for nitrous acid. 1.…
A: The molarity of a nitrous acid solution is = 0.300 M The pH of the solution is =2.07 The Ka value of…
Q: A 0.200 M solution of nitrous acid (HNO,) had a pH of 2.07. What is the Ka value for nitrous acid 1.…
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Q: Write the equation for thermal decomposition of CaCO3 and Mg(NO3)2
A: When CaCO3 is heated at high temperature, it is decomposed to calcium oxide and carbon dioxide as…
Q: 1. Answer the following questions: a) Why aqueous solutions of KMN04 are not entirely stable? b)…
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Q: 2. What test could you perform to detect the presence of NH4* ion? Write a reaction and explain what…
A: As per our guidelines we can only solve first question. Please resubmit the other questions as next…
Q: Determine the pH of a 10-3 mol/L solution of (a) hydrogen sulfate ion (pKa = 1.99), (b) formic acid…
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Q: 18. How many grams of ammonium nitrate must be weighed out to make 415 g of a 58.0% by mass…
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Q: What is the pH of a solution that is 0.063 M in HA and also 0.023 M in NaA? (Ka = 4.1 x 10-6) %3D O…
A: given, concentration of HA = 0.063M concentration of NaA= 0.023M Ka = 4.1×10-6
Q: Phosphoric acid (H₃PO₄) is a triprotic acid with pKa values of 2.12, 7.21, and 12.32. It is a useful…
A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: What is An for the following equation in relating Kc to Kp? 2 SO2(g) + O2(g) = 2 SO3(g) O3 O-1 O-2…
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Q: 38. Determine the pH of 0.42 M for formic acid, HCOOH solution. The value of pka for HCOOH is 3.75.…
A: We have to calculate the pH of Solution.
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A: IMF (inter molecular force) are mainly of 4 types i.e. dipole -dipole, hydrogen bonding, dispersion…
Q: What solid would form when phosphoric acid (H3PO4) is added to milk of magnesia (Mg(OH)2)?
A: When an acid reacts with a base it produces salt and water. Such reactions are known as acid-base…
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Q: B- Describe the preparation of 5 L of 0.1 M NaHCO3 (Na= 23 , C= 12 , 0= 16 , H=1 ) from the primary…
A: We have given that Volume of solution (V) = 5 L Molarity (M) = 0.1 M Molar mass of NaHCO3 = 84…
Q: Question 15.22
A: Given,Temperature = 303K.Kp = 34.5.
Instructions: Answer the following questions regarding the test for phenol.
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- 31. A sample of meat scrap weighing 2.000 g is digested with concentrated H2SO4 and a catalyat. The resulting solution is made alkaline with NaOH and the liberated ammonia distilled into a 50.0 mL of 0.6700 N H2SO4. The excess then requires 30.10 mL of 0.06520 N NaOH for neutralization. What is the percentage of nitrogen in the meat?Sodium lauryl sulfate has the same use in embalming fluids as: 1. sodium phosphate 2. citrates 3. sulfonates 4. sodium salt of EDTA 1 & 4 only 3 only 4 only 1,2,3,and 424. (a) How many picomoles of Ca are in 0.0100 g of wollastonite (Ca2Si2O6)? (b) How many picograms of Ca are in 0.0100 mol of wollastonite?
- A 0.9056 g sample of KBrO3 (MM=167.0) was dissolved in dilute HCl and treated with an unmeasured excess of KI. The liberated iodine required 37.21 mL of Na2S2O3. Calculate the molar concentration of sodium thiosulfate. 1 mol BrO3- = 3 mol I2 = 6 mol S2O32- 0.8744 M 2.623 M 0.8791 M 0.2915 MWhy alkali is added to the nitrification tank？ A. to provide electron donors B. to provide alkalinity for the nitrification reaction C. to acidify the reaction solution D. to provide nutrients for the nitrifier bacteriaA 0.1017 g sample of KBrO3 (MM=166.1) was dissolved in dilute HCI and treated with an unmeasured excess of Kl. The liberated iodine required 39.75 mL of Na₂S₂O3. Calculate the molar concentration of sodium thiosulfate. 0.2561 M 0.08512 M 0.09242 M 0.1041 M
- Use your calculated values of Kspand Kf to explain why CdC2O4 is dissolved by ammonia. Ksp = 7.12 x 10-8 Kf = 45.5250.00 mL of a water sample is diluted with 150.00mL deionized water. The diluted sample has a lead content of 17.8 ppb. What us the led content (in ppb) of the original sample?Calmagite is often used as a substitute for Eriochrome Black T as indicatorin the determination of Ca. List down two main advantages of calmagite overEriochrome Black T.
- A 0.951-g sample containing (NH4)2C2O4 and compounds was dissolved in water and made alkaline with KOH. The liberated ammonia was distilled into 50.00 mL of 0.1007 N H2SO4. The excess H2SO4 was back titrated with 11.13 mL of 0.1214 N NaOH. Calculate the percentage of nitrogen in the sample.What is the reducing and oxidizing agent in the formation of potassium trioxalatoferrate(III) trihydrate? What is the reducing and oxidizing agents when this is titrated with KMnO4?How do you find the simpliest oxidation step by step for Fe3+?