Webb17 juni 2024 · Final [H2NNH2] = 0.19 mol/0.140 L = 1.357 M. Final [H2NNH3+] = 0.01 mol/0.140 L = 0.0714 M. Using the Henderson Hasselbalch equation we have pOH = … WebbThe value of Kb for H₂NNH₂ is 3.0 × 10⁻⁶. In addition to finding the pH, how would you fill a before, change, and after table? H2NNH2 (aq) + H+ (aq) --> H2NNH3+ (aq) Before (mol) Change (mol) After (mol) Determine the pH at the point in the titration of 40.0 mL of 0.200 M H₂NNH₂ with 0.100 M HNO₃ after 100.0 mL of the strong acid has been added.
Answered: Calculate the pH of a 1.47 M aqueous… bartleby
WebbConsider the titration of 100.0 mL of 0.200 M H2NNH2 (Kb = 3.0 x 10) by 0.100 M HNO3. Calculate the pH of the resulting solution after the following volumes of HNO3 have been added: a. O mL HNO3 b. 120.0 mL HNO3 c. Assume the pH at the equivalence point is 4.8. Suggest one appropriate indicator to use for this titration. Explain your choice. 3. WebbYet we use this formula. I agree with your answer to (a) of 10.74. You had 0.1 L x 0.1 M = 0.01 moles H2NNH2. You added 0.06 L x 0.2 M = 0.012 moles HNO3. You had an excess of 0.002 mols HNO3 (just has you have it). So there is an excess of HNO3 as well as 0.01 moles of the salt (H2NNH3^+) present. penner ash pinot 2019
AP Chem: 2024 FRQs Flashcards Quizlet
WebbHydrazine is an inorganic compound with the chemical formula N 2 H 4.It is a simple pnictogen hydride, and is a colourless flammable liquid with an ammonia-like odour.Hydrazine is highly toxic unless handled in solution as, for example, hydrazine hydrate (N 2 H 4 ·xH 2 O). Hydrazine is mainly used as a foaming agent in preparing … Webb9 mars 2024 · Answer: % α = 0.1577 % Explanation: H2NNH2 (aq) + H2O (l) ↔ H2NNH3+ (aq) + OH- (aq) 0.5216 - X X X ∴ δH2O = (997 Kg/m³)* (m³/1000 L) = 0.997 Kg/L ∴ C … Webb2 mars 2024 · Testvinnare - Bästa K2-vitamin 2024. Här får du en snabb överblick över de bästa K2-vitamintillskotten 2024: Healthwell Vitamin K2 200 - Bäst i test. WeightWorld … penner ash chardonnay 2018