Choose the best reagents to complete the reaction shown below. 1.H₂O* 2. NaBH 1118 OH -Br D A B D conc. HBr 1. LIAIH 2. H₂O* 1.H₂O* 2. NaBH4 1. PhLi 2. H₂O* PhMgBr 2. H₂O* Ⓒ
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- Final 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…For the following reaction identify the acid and the base and predict the position of the equilibrium. e. 2 = acid; = base; Il = acid; = base; favor the right side favor the right side favor the left side favor the left side = acid; =base: acid; Il = base; 11 = acid; 11= base; at equilibrium so equally favors both sides ABCDE O O OB OE C OABD 34.62 mL of o.510M Na OH was needed to nestralize 50.0mL Of ean H 25044 solwtion- what is the concentration Of the original sufuric acid soluti Dh? C.) Oc 105 M a-) 0.0Ź 29 M d.) 0.218 M b.) 0-052 3M e.) Ou 209M
- Redox Reactions in Basic Aqueous Solution (two parts) Balance the following equations, using either the half-reaction method or the oxidation number method, and enter the coefficients in the boxes. The coefficients must be the smallest possible integers. All boxes must contain an entry. Si + Sn(OH),2 - H20 – H20 + ОН + SiO3 HSNO2 + OH Note that neither H,0 nor OH" should appear on more than one side of the equation. Thus, some of the coefficients above must be 0.25.0 cm³ sodium hydroxide is neutralized by 15.0 cm³ sulphuric acid of concentration 0.10 mol dm-3. a. Write the equation for the reaction b. From the equation, determine how many moles of sulphuric acid will neutralize 1.0 mol of sodium hydroxide. c. Determine how many moles of sulphuric acid are used in the neutralization. d. Determine the concentration of sodium hydroxide.1. Et O 1. CH3MGCI; 2.heat; H3C- 3. dil. HCI H3C = -CH2OH m. NC heat EN Ph OEt N2 n. Rh2(OAc)4 heat p.
- ALEKS - Alec Nema - Learn G hydrochloric acid molar mass - G X + -> A www-awu.aleks.com/alekscgi/x/Isl.exe/1o_u-lgNslkr7j8P3jH-IvUrTNdLZh5A8CnG03PBGuXr8iCPa7ZMmym9ptTdXEBuyh4nRbErwikmldvGYg7DAf2EO_JCH30... Paused Apps Sprouts Academy. O Online Tutoring C 400 Request Heade. Q Weather & Soil CH. O ADVANCED MATERIAL Alec v Calculating solubility A geochemist in the field takes a small sample of the crystals of mineral compound X from a rock pool lined with more crystals of X. He notes the temperature of the pool, 26.° C, and caps the sample carefully. Back in the lab, the geochemist dissolves the crystals in 800. mL of distilled water. He then filters this solution and evaporates all the water under vacuumn. Crystals of X are left behind. The researcher washes, dries and weighs the crystals. They weigh 0.032 kg. Using only the information'above, can you calculate Oyes the solubility of X in water at 26.° C? O no If you said yes, calculate it. Be sure your answer has a unit symbol and 2…24. Methylamine, CH3NH4 is a weak base that ionizes in solution as shown by the following equation. CH3NH2 + H20 5 CH;NH;* + OH- (a) At 25 °C, the percentage ionization in a 0.160 molar solution of CH3NH2 is 4.7%. Calculate JOH], [CH3NH3'], [CH3NH2], [H3O*], and the pH of a 0.160-molar solution of CH3NH2 at 25 °C.What reaction occurs as a hydrochloric acid solution is added to a solution containing equal concentrations of acetic acid and sodium acetate? Select one: - O a. CH3CO0 + H*-CH3COOH O b. CH3COOH + H CH3CO* + H2O O c. CH3COOH + HCI CH;COO + H;CI O d. 2CH3CO0 + 2H - CH3COO + H2 O e. CH;COOH + H-CH3COOH;
- An experimenter would like to perform the following reaction to obtain product A. However, the product obtained is B Lo AICI3 A a- Justify the majority obtaining of B. b- Propose another method that would allow to obtain A. + HCI B:t. choose the uak e e lectroly te C-) KBr a.) H CO ZH b) Naci 9-) Hci all ok the gbore1. NaBH4 2. EtOH 1. excess CH3MgBr 2. H2O 1. excess DIBAH 2. H2O 1. (CH3) 2CuLi 2. H2O