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- a) " -78 °C, THE 2) H₂0 Phyp THF, 0'C 8 TICH MICH reflujoi. Which of the reactions given below is wrong? H3O*/H20 (A) MgBr + CO2 H2/Pt (B) CH;CH2CN CH;CH,NH2 heat NABH4 (C) HO OH/H20 (D) CI OH(b) Calculate the pH of 0.0005 mol dm-3 ethanois acid when its pKa = 4.75 CH;COOH() -> CH;COO (a H(a + Ka = pH =
- In the following reaction in aqueous solution, the acid reactant is and its conjugate base is CH;COOH(aq) + H2O * CH3CO0 (aq) + H30 (aq) A CH3COOH; CH3C00 B CH3COOH; NH4 NH3; CH3CO0 D) NH3; NH4" E CH3COOH; H30*Ammonia (NH3) is a weak base that under acidic conditions becomes protonated to the ammonium ion in thefollowing reaction:NH3 + H+ → NH4 +NH3 freely permeates biological membranes, including thoseof lysosomes. The lysosome is a subcellular organelle witha pH of about 4.5–5.0; the pH of cytoplasm is about 7.0.What is the effect on the pH of the fluid content of lysosomes when cells are exposed to ammonia? Note: Ammonium (NH4 +) does not diffuse freely across membranes.Determine the AH of the reaction 1 1 NO2(9) +¿O2c@) +;H20) → HNO3(aq) 4