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- B E 1. CH₂MgBr 2.HO 1. Na(CN)BH, pH 4-5 2.H₂O CHÍNH, NAOH 1. CH CH2NH2, Na(CN)BH, pH 4-5 2. Neutralizing work-up DoneFinal Volume V₂ = 341 mL al Volume V₁ =? 10. What is the molecular geometry and molecular polarity for CH₂Cl, and SO, ²? 11. What do catalysts do and how do they affect reaction rates? 12. 2 Atoms are side by side. Their chemical reactivity is dependent on the electrons which hold serve fe 13. Identify the acid, base, conj. Acid, conj. Base: H₂CO, + HPO4 H₂PO4 + HCO, 14. True or False? Chemistry looks at the microscopic view of matter. 15. Identify the 4 biological buffer mechanisms 16. Calculate the density of silver metal if 930 cm³ block has a mass of 2.21 x 104 g. Express the answer with the correct number of significant figures. 17. Kinetic molecular theory describes the behavior of which state of matter? 18. The pH scale operates on a logarithm scale which means an increase or decrease fold in the of pH is by 10s. So, a change in pH from 5 to 3 is a hydrogen ion concentration. And in other words, a pH of 3 has and less OH- than a pH of 5 19. A precipitate occurs in the reaction…Which of the following is the structure of oxalic acid? HO. HO. HO. HO. HO, HO. %3D IV B) || C) II O A)I O D) IV
- 3. Determine the pH of the following solutions: a. 1.9 M HClO2 solution (Ka = 1.1x10-2) b. 2.8 M C6H5NH₂ solution (Kb = 4.3x10-10)H2AO4 is a weak acid. What is [AO42 in a 0.30 M H2AO4 solution? [Ka1 = 6.2 x 10-; Ka2 = 5.2 x 10-10 OA21 x 10-5 M OB 5.2 x 10-7 M OC0.60 M OD 6.2 x 10-7 M OE 0.30 M OF 6.2 x 10-10 M OG5.2 x 10-10 MCan someone explain to me how to solve problem#3 please
- Acetic acid (HC2H3O2) reacts with pyridine (C5H5N). What are the products of this acid - base reaction? HC2H3O2 + C5H5N = ??? Select one: O a. C5H4N¯ and H2C2H3O2* ОБ. СН302" and CsHsNH* О с. СьНаN and Hз0* O d. C2H3O2¯ and H30* Ое. H3O* and OH- In the reaction HSO4 (ag) + OH (6 = (be) SOQ² (aq) + H2O(1) the conjugate acid-base pairs are Select one: O a. HSO4¯ and OH" ; SO42- and H20. O b. HSO4¯ and SO42- ; H20 and OH". Ос. HSO4¯ and H30*; so,²- and OH". O d. HSO4¯ and H20 ; OH¯ and SO,2-. e. HSO4¯ and OH" ; SO4²- and H3O*.Which would be the preferred solvent for the reaction below? Na solvent: OH IV V H₂O || :OH III OH solvent IV 10:Which acid is the strongest? a. propanoic acid, HC3H5O2, Ka = 1.4×10–5 b. oxalic acid, H2C2O4, K a = 5.9 x 10-2 c. formic acid, HCOOH, Ka = 1.8×10–4 d. hydrofluoric acid, HF, Ka = 3.5 x 10-4
