Write net Bronsted equations that show the acidic or basic nature of the following substances, given the pH. For polyprotic acids, only show one proton transfer. Remember that spectator ions are not included. (Use the lowest possible coefficients. Omit states-of-matter in your answer.) lithium dihydrogenphosphate with a pH of 4.70 fish (trimethylamine, C3H9N) with a pH of 8.20 milk (lactic...
You titrated a 22.00 mL solution of 0.0300 M oxalic acid with freshly prepared solution of KMnO4. If it took 48.99 mL of this solution, what is the molarity of the KMnO4? 0.022 L of 0.300 M oxalic acid (0.022)(0.03) = 0.00066 mol oxalic acid 0.0006 mol oxalic acid x (2 mol KMnO4)/(5 mol oxalic acid)= 0.000264 mol KMnO4 0.000264...
Step by step calculate 2. Determine the shape of the water surface (you can neglect the surface tension); w th
Milk of magnesia, an over-the-counter antacid liquid, is a suspension of magnesium hydroxide in water. It neutralizes the hydrochloric acid in the stomach to alleviate some stomach symptoms associated with excess acid. In a laboratory, 1.11 g Mg(OH)2 is added to 231.8 mL of 0.1731 M HCl in water. They react according to the following equation. Mg(OH)2 + 2 HCl...
trying to learn the steps of this equation, details are also helpful. Thank you so much 12. If 117 g of salt (NaCI) is added to 1500 g of water, what is the freezing point of the resulting solution(10 pts.)? (Note -NaCl yields two particles per mole, soi 2, and molality moles/kq of solvent.)
shade the normal curves o. Chemists use pH to measure the acid/alkaline nature of compounds A landard deviation o commercial chemicals is supposed to have a mean pH μ nature of compounds. A large vat of mixed 6.4 witha 1.7 pH. Assume a normal distribution for pH values. If a random sample a mean pH the vat is taken and...
Given: Ksp(Ag2Cro4) = 1.2x10-12 Ksp(BaCro4) 2.1x10-10 For a solution which is initially 0.002 M in Ba2 and 0.002 M in Ag*, it is desired to precipitate one of these ions as its chromate (CrO42 salt to the maximum possible degree without precipitating any of the other cation. From this solution, which ion can be selectively first-precipitated by controlled addition of...
Please help answer questions 1-4 of my assignment with the given [HCl] Concentration of 0.1522 Titration of Room Temperature Ca(OH)2 Solution. Note these are 10.00 mL samples. Room Temperature_210 "C294 K (lab manual, p. 8-5) Trial Trial 2 Trial 3 Final Volume (mL) Initial Volume (mL) Volume Delivered (mL) Average Volume (mL) 28.66 mL Titration of "Hot" Ca(OH)2 Solution. Note...
c) Initially, a tank is filled with 130 kmol of an aqueous sulfuric acid solution (H2SO4) which contains 5.0 mol% of H2SO4. The solution in the tank is concentrated by adding pure sulfuric acid at a rate of 20.0 L/min. i) Derive an equation to relate the mole balance of sulfuric acid with time. ii) Evaluate the time taken to...
please help me solve questions 16,17,18,19 and 20. thank you. THE FOLLOWING SCHEME APPLIES TO QUESTIONS 16, 17, 18, 19 AND 20 ce OH . 121 QUESTION 16 The reagent required for step (O is A B SOC. HCI NaCl in water 12] QUESTION 17 Which of the following reagents can be used to achieve step? А CO, in acid...