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- please make the explanation clear and thank you for your help7. Draw out the chemical equations of the carbonic acid / bicarbonateequilibrium system, explain how the system responds to increase acidity.Please calculate the percentage of ethylenediamine in the predominant form at pH 6.043, pKb1 of ethylenediamine is 4.072 and pKb2 is 7.152 Thank you very much please answer in percentage
- Which is most acidic?An analytical chemist is titrating 234.9 mL of a 0.5100M solution of trimethylamine ((CH3)N) with a 0.5700M solution of HNO3. The pK, of trimethylamine is 4.19. Calculate the pH of the base solution after the chemist has added 251.7 mL of the HNO3 solution to it. Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of HNO3 solution added. Round your answer to 2 decimal places. pH = -0 X $If I have a weak base with a pKb of 6.50 what concentration of [OH-] will be present in a solution at pH of 7? What will the concentration of the conjugate acid be?
- An analytical chemist is titrating 187.6 mL of a 0.4000M solution of trimethylamine ((CH,) N) with a 0.7000M solution of 3 HNO3. The p K, of trimethylamine is 4.19. Calculate the pH of the base solution after the chemist has added 19.8 mL of the HNO, solution to it. Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of HNO, solution added. Round your answer to 2 decimal places. pH = ||Which of the following is correct concerning the base ionization constant, Kp, of dimethylamine, (CH3)2NH? [(CH3),NH;][OH ] [(CH3),NH][H2O] O If more (CH3)2NH is dissolved into water, the pH of the solution will remain the same. If more (CH3)2NH is dissolved into water, then Kp will increase. [(CH3),NH;][OH [(CH3),NH] KAmmonia (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.
- Why does vanadium pentaoxide acts a catalyst?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?Place the following acids in order of increasing strength: -H3PO4, H3PO2 and H3PO3. Explain your reasoning based on molecular structure.