10.3. When two carbohydrates bond, they do so through a reaction called (2 words). This produces a molecule called a A molecule comprising numerous carbohydrates is called a 10.4. Look at figure 3.6 again. Identify at least three qualities which all carbohydrate molecules share. 10.5. Based on your observations, would you predict carbohydrates are hydrophilic or hydrophobic? 10.6. Plants store glucose in a long-chained molecule called Your liver stores glucose in a similar, long-chained molecule, but the molecule has many branches to it. What's this molecule called?
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- Rank the elements or compounds in the table below in decreasing order of their boiling points. That is, choose 1 next to the substance with the highest boiling point, choose 2 next to the substance with the next highest boiling point, and so on. chemical symbol, substance chemical formula boiling point or Lewis structure Ar (Choose one) A В Cr (Choose one) v H H. H. H - C - C - ) - C H (Choose one) | H H H. H H - C -H D :N - O - H (Choose one) ♥ Н—С — Н ? :0 : :Water is critical to understand for biophysical processes. a. Draw the chemical structure of water (at pH 7.5). Add labels of bond lengths, atomic radii, angles, dipoles, and types of intermolecular interactions possible. b. Draw a diagram of water within a hydrophobic cavity. Include expected distances and label interactions. c. What is the volume of a bacterial cell? Of a eukaryotic cell? How many water molecules could fit within both cell types assuming the cell is 70% water? d. At a pH of 7.5, how many protons are available in the cell for cellular processes that require77. The number of mokes of H, needed to complete ly saturate 1 mole of vitamin A is HO. 78. The determine whether organic compounds are soluble in polar or non-polar solvents, whether they have high or low melt ing and boiling points, or whether they react with other molecules. 79, The melt ing and boiling points of organic compounds are dependent on the between the molecules.
- Essentials of General, Organic, and Biochemistry Denise Guinn THIRD EDITION presented by Macmillan Learning The table lists the specific heat values for brick, ethanol, and wood. Specific Heats of Substances cal Specific Heat g. °C Substance Brick 0.20 Ethanol 0.58 Wood 0.10 Calculate the amount of heat, in calories, that must be added to warm 62.6 g of brick from 20.2 °C to 50.1 °C. Assume no changes in state occur during this change in temperature. heat added: cal Calculate the amount of heat, in calories, that must be added to warm 62.6 g of ethanol from 20.2 °C to 50.1 °C. Assume no changes in state occur during this change in temperature.A boiler burns fuel oil with 15% excess air. The fuel oil may be presented by C₁₄ H₃₀. Calculate the molal air fuel ratio. a. 14 b. 117.69 c. 102.34 d. 17.14 e. None of the choices*Using the expanded structure of C15H11I4NO4 (Levothyroxine), 1. For each central atom in your molecule, decide if it is polar or nonpolar and the decide the type of intermolecular forces it would have (dispersion forces, dipole-dipole, or hydrogen bonds). Color each central atom, based on its type of IMFs (include a key). Make a reasonable prediction stating whether your molecule will be soluble in water or not soluble and explain your reasoning. If your molecule seems to be borderline in polarity, making it difficult to predict solubility, explain your reasoning and the difficulty involved. Find a source (Pubchem, RxList etc.) that discusses the water-solubility of your drug. Compare your predictions with the information you find on the water-solubility of your drug and comment on any discrepancies.
- L. Using Table 1, calculate AH; for each of the following reactions. Tell if each is exothermic or endothermic. a. 2 NO(g) + 0:(8) → 2 NO:(g) b. 2 C,Hlg) + 70:(g) → 4 CO.(g) + 6 H;0(g) c. N:(g) + 3 H:(g) - 2 NH:(g) d. 2 CH;OH(1) + 3 0:(g) → 2 CO:(g) + 4 H;0(g) e. 2 SO:(g) + 0:(8) + 2 S0,(g) f. 2 CH«(g) + 30:(8) → 2 CO:(g) + 2 H;0(g) & 2 CO(g) + O:(8) → 2 CO:(g) h. N;(8) + O:[g) → 2 NO(8) II. Calculate AH, for each of the following (using Table 1). i CHxo from the reaction 2 C;H:(B) + 5 0:(g) → 4 CO:(g) + 2 H;0(g) + 600kcal i CHo from the reaction CH«(g) • 2 0:(g) CO:(g) + 2 H;0(g) + 192 kcal III. Given the following reactions k S+ 0: - So: 71.0 kcal 2 so, + 0: - 2 s0, + 47.0 kcal Calculate AH, for 2 S + 3 0: - 2 SO, L 2C + 0, - 2 co + 52.8 kcal 2 co + 0; - 2 CO; + 125 kcal Calculate AlH, for C + 0z - co: IV. Calculate AH, AS and AG at 25 C, and tell if the reaction will go spontaneously (use Table 1 and 2) m. N:(g) + 3 H:(R) → 2 NH:(8) n. 2 CO(g) + 0:(g) - 2 CO:(8) a 2 CH:(g) + 5 0:(8)…How many moles of bonds between which pairs of atoms form during the combustion of 8 mol CH4? Treat a double bond or a triple bond as one bonding interaction (i.e., 1 mole of triple bonds equals 1 mole of bonds).Choose one or more: A.16 moles of O–H bonds B.32 moles of C–H bonds C.16 moles of O–O bonds D.16 moles of C–O bonds E.32 moles of O–H bonds F.8 moles of C–H bonds G.8 moles of C–O bondsElectric Forces: Base Pairing in DNA, II The figure below shows the bonding of the cytosine and guanine molecules. The O - H and H - N distances are each 0.110 nm. In this case, assume that the bonding is due only to the forces along the O - H - O, N - H - N and O - H - N combinations, and assume also that these three combinations are parallel to each other. Calculate the net force that cytosine exerts on guanine due to the preceding three combinations. Is this force attractive or repulsive?
- Consider the thioformaldehyde (CH₂S) molecule. What is the central atom? Enter its chemical symbol. How many lone pairs are around the central atom? What is the ideal angle between the carbon-hydrogen bonds? Compared to the ideal angle, you would expect the actual angle between the carbon-hydrogen bonds to be ... 0 0 (choose one) XORT SHEET Heat of Neutralization EXPERIMENT elemsboomfchg lom 12 A. Heat Capacity of Calorimeter 1. Temp. of calorimeter and water before mixing 2. Temp. of warm water °C 22.0 39,0 30.3 3. Maximum temp. determined from your curve °C 4. Heat lost by warm water (temp decrease x °C 50.0 g x 4.184 J/K-g) = 02), 5. Heat gained by cooler water (temp. increase x 50.0 g x 4.184 J/K-g) = 30,3 22.0)x 13626J s0.0gmpi S0.0gy 6. Heat gained by the calorimeter [(4) – (5)] = 7. Heat capacity of calorimeter: heat gained by the calorimeter temperature increase J/K 3. Heat of Neutralization of HCl-NaOH 22.2 22.2. °C . Temp. of calorimeter and NaOH Temp. of HCI AT determined from your curve after adding HC1 °C to the NaOH Heat gained by solution (temperature increase x ON 100 g x 4.184 J/K-g) = 9977.8J %3D Heat gained by calorimeter (temperature increase x heat capacity of calorimeter) = J %3D Total joules released by reaction [(3) + (4)] = Tight O 2018 Pearson Education, Inc.ced Use the References to access important values if needed for this question. Complete the following reaction by drawing structural formulas for the organic product(s). CH3 0 CH3CHCH₂COCH3 ● • You do not have to consider stereochemistry. . If there are two different organic products, draw both. • Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. Separate multiple products using the + sign from the drop-down menu. [... + H₂O CH4 H+ ChemDoodle Previous