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- Each of the molecules shown below generates three different HNMR signals. Using the chemical shift differences, the relative peak intensities, and the splitting pattern of these signals, match each molecule to one of the HNMR spectra given below. HO, (a) (b) (c) Spectrum I 3 2 PPMwhy does n = t1/t2?What is the structure of function of this molecule. a w x x x x x x x x x b -1 2 3
- O ZnS(s) 2 Hl(ag)- Zn21 (5) * H2S(g) ZnS(s) + 4 Hl(aq)- Znl2 (s) * 2 H2S(g) ZnS(s) +2 HI(aq) - Znl2 (s) + H2S(g) O ZnSO4(s) + 2 HI(aq)- Znl2 (s) + H2SO4(g) QUESTION 3 Choose the correct balanced chemical equation for the following: gaseous carbon monoxide reacts with hydrogen gas to form gaseous methane (CH4) and liquid water Co(g) H (g)- CH4 (g) + H200) O 2 C0g) 6 H2 (9)-2 CH4 (9) + 2 H20 O Cog) +6 H (g)- CH4 (g) + H20 O Cog) + 3 H2 9) - CH4 (g) + H2 QUESTION 4 Balance the following cheical equation MgO (5)-25O4 (29) MgS04(s) + (ag) The coeffic ent for MgO is The coeficent for H 504 EC8H8O produces an IR spectrum with 3063, 1686, 1646 cm signals. HNMR is a singlet at 2.6ppm (3H), and multiplet at 7.5 (5H). What is the productA carbon is covalently attached to =O, -CH2-CH3, and -CH3. It is best called a(n): aldehyde fatty acid ketone carbohydrate alcohol amino acid The movement of low-density lipoprotein (LDL) particles into our body cells from the bloodstream occurs by: passive transport a channel protein facilitated diffusion active transport exocytosis Chlorophyll fluorescence occurs when electrons are unable to move forward in the reactions of photosynthesis because the reactions are slowing down. Which of the following would be likely to cause an increase in chlorophyll fluorescence, i.e. by slowing down photosynthesis? choose one or more, or none 1-making more thylakoid membranes in chloroplasts 2-giving chloroplasts access to more CO2 3-raising the pH of the thylakoid spaces
- 11. Which of the following E,Z-designations are correct? Mark all correct answers .(a) Derive linear density expressions for BCC [110] and [111] directions in terms of the atomic radius R and (b) compute linear density values for these same two directions for tungsten. (a) [110]: i [111]: i (b) [110]: i [111]: i atom/R atom/R 1/m 1/m`NK* + KBr DMF Br NH2 H,NNH, (continued from above) ethanol +
