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Chemistry concepts and calculations

117302 questions • Page 123 / 2347

1. Given the formula for a series of complex compounds, identify which one has t
1. Given the formula for a series of complex compounds, identify which one has the highest oxidation state. 2. What type of bond is most likely to form between a transition metal …
1. Given the reaction 2A + 3B à C + 4D the reaction is zeroth order with respect
1. Given the reaction 2A + 3B à C + 4D the reaction is zeroth order with respect to A and second order with respect to B. If the concentration of both A and B are doubled and the …
1. Glucagon inhibits glycolysis in the liver because: a.) it increases the activ
1. Glucagon inhibits glycolysis in the liver because: a.) it increases the activity of Fructose-bisphosphatase 2 b.) it causes a decrease in Fructose-2,6-bisphosphate concentratio…
1. Glucokinase and hexokinase perform the same enzymatic function yet their role
1. Glucokinase and hexokinase perform the same enzymatic function yet their role in carbohydrate metabolism / homeostasis is substantially different. a. Describe their cellular di…
1. Glucose + ATP ---> glucose 6-phosphate + ADP + H+ 2. Glucose 6-phosphate
1. Glucose + ATP ---> glucose 6-phosphate + ADP + H+ 2. Glucose 6-phosphate <----> fructose 6-phosphate 3. Fructose 6-phosphate + ATP ----> fructose 1,6-bisphosphate +…
1. Glucose has a solubility of 125 g /100 mL. What is the approximate concentrat
1. Glucose has a solubility of 125 g /100 mL. What is the approximate concentration of glucose in a saturated solution? How much glucose can be dissolved in 745 mL of water? [gluc…
1. Glucose, CaHi20, is a sugar that is present in fruits. It is also known as \"
1. Glucose, CaHi20, is a sugar that is present in fruits. It is also known as "blood sugar" because it is found in the blood and it is the body's main source of energy. What is th…
1. Glycine is the simplest of the amino acids. Treat the amine and carboxylic ac
1. Glycine is the simplest of the amino acids. Treat the amine and carboxylic acid functional groups as independent functional groups. Using pKa values from Table 1.8 in the book …
1. Glycine is the simplest of the amino acids. Treat the amine and carboxylic ac
1. Glycine is the simplest of the amino acids. Treat the amine and carboxylic acid functional groups as independent functional groups. Using pKa values from Table 1.8 in the book …
1. Glycolysis has two phases, energy investment phase and energy generation phas
1. Glycolysis has two phases, energy investment phase and energy generation phase. What does that mean? a. Energy investment phase of glycolysis uses NADH for kinase reactions and…
1. Graduated cylinders are not as precisely calibrated as are burets or volumetr
1. Graduated cylinders are not as precisely calibrated as are burets or volumetric pipets. Briefly explain why it is acceptable to measure the KI and HCI solutions used in the tit…
1. Group IV ions 2. During your Qualitative Analysis, the ions in this group wil
1. Group IV ions 2. During your Qualitative Analysis, the ions in this group will not precipitate as chlorides, sulfides or hydroxides 3. The test for ammonium ions must be done f…
1. H 2 O 2(aq) +I - (aq) H 2 O ( l ) +IO - (aq) (slow) 2. IO - (aq) +H 2 O 2(aq)
1.   H2O2(aq) +I-(aq) H2O(l) +IO-(aq)              (slow) 2.   IO-(aq) +H2O2(aq) H2O(l) + O2(g) +I-(aq)   (fast) a. Assuming that thefirst step of the mechanism is rate determinin…
1. H-Bonding is the type of cross linking found in biological polymers such as D
1. H-Bonding is the type of cross linking found in biological polymers such as DNA 2. With partial covalent cross linking (e.g. adding sulfur to natural rubber) a polymer will bec…
1. HI -----> 1/2 H2+ 1/2 I2 In zero order in HI with a rate constant of 1.20 x 1
1. HI -----> 1/2 H2+ 1/2 I2 In zero order in HI with a rate constant of 1.20 x 10^-4 Ms^-1 If the initial concentration of HI is 0.110 M, the concentration of HI will be 2.43 x…
1. Harms and Impacts. Jeremy is preparing a presentation for his job as a water-
1. Harms and Impacts. Jeremy is preparing a presentation for his job as a water- filtration expert. He must defend the claim that company executives should fund the construction o…
1. Heat Conduction through a Slab with Energy Generation A solid slab of thickne
1. Heat Conduction through a Slab with Energy Generation A solid slab of thickness d and infinite in extent in the lateral directions contains a source of heat which is producing …
1. High viscosity containing substances generally posses high boiling points, th
1. High viscosity containing substances generally posses high boiling points, they are called as non volatile substances. They posses strong intermolecular forces so that high boi…
1. High-fructose corn syrup (HFCS) is used as a sweetener in many food and bever
1. High-fructose corn syrup (HFCS) is used as a sweetener in many food and beverage products. HFCS 42 is a commonly used HFCS; 1 kg of HFCS 42 has the following approximate compos…
1. Higher efficiency in the combustion of solid fuel can not be achieved by A. p
1. Higher efficiency in the combustion of solid fuel can not be achieved by A. proper fuel preparation. B. keeping the flue gas exhaust temperature very high. C. adopting efficien…
1. Highlight the major nonpolar regions of the molecule (below) that can bind to
1. Highlight the major nonpolar regions of the molecule (below) that can bind to the nonpolar regions of amino acid side chains of a protein. 2. Pick ONLY one of the amino acid si…
1. Histones are proteins found in eukaryotic cell nuclei, tightly bound to DNA,
1. Histones are proteins found in eukaryotic cell nuclei, tightly bound to DNA, which has many negatively charged phosphate groups. The pI of histones is very high, about 10.8. a)…
1. Hot KMnO4 treatment of a compound yields (CH3)2C=O, CH3COOH, and HOOCCH2COOH.
1.  Hot KMnO4 treatment of a compound yields (CH3)2C=O, CH3COOH, and HOOCCH2COOH.  What is its structure? A)  CH3CH=CHCH2CH=C(CH3)2  B)  (CH3)2C=CHCH2CtriplebondCCH3  C)  (CH3)2C=…
1. How are authentication and authorization related to one another? What problem
1. How are authentication and authorization related to one another? What problem does each solve? 2. What are ACLs in the context of this class? What is RBAC? How does each addres…
1. How are economic models applied to environmental systems? 2. How has the trag
1. How are economic models applied to environmental systems? 2. How has the tragedy of the commons resulted in overfishing? 3. How can the concept of sustainable yield help preven…
1. How can the periodic table be used to determine the number of valence electro
1. How can the periodic table be used to determine the number of valence electrons in a representative element atom? 2. How many total electrons and valence electrons are found in…
1. How chylomicron remnants are cleared from circulation? a. Apolipoprotein B-48
1. How chylomicron remnants are cleared from circulation? a. Apolipoprotein B-48 binds to receptor in liver. b. Apolipoprotein E binds to receptor in kidney c. Apolipoprotein C-II…
1. How could you use IR to show that the reduction of benzophenone to benzhydrol
1. How could you use IR to show that the reduction of benzophenone to benzhydrol is complete? 2. How could you use NMR to show that the reduction of benzophenone to benzhydrol is …
1. How did the consistency of the solutions differ after the 5-minute hot water
1. How did the consistency of the solutions differ after the 5-minute hot water bath incubation and after allowing the solutions to sit for 1 hour? 2. Describe the differences in …
1. How do I calculate the concentration of Cu(NH3)42+? I am only given that, in
1. How do I calculate the concentration of Cu(NH3)42+? I am only given that, in a test tube, there is 3.00 mL of 0.05 M CuSO4 mixed with 7.00 mL of 0.20 M NH3/0.20M NH4NO3 No DI w…
1. How do the results you observed when excess KOH was added illustrate the amph
1. How do the results you observed when excess KOH was added illustrate the amphoteric nature of aluminum hydroxide? Explain! 2. Predict what would happen if the initial precipita…
1. How do the voltages of standard batteries compare to the voltages in a typica
1. How do the voltages of standard batteries compare to the voltages in a typical static electric "shock"? A) Batteries have much less voltage B) Batteries have about the same vol…
1. How do we define ionization energy of H-atom in terms of the electron transit
1. How do we define ionization energy of H-atom in terms of the electron transition - from ground state to which energy level? 2. How is the energy of the electron is quantized in…
1. How do we make use of stoichiometry to determine molecular mass of the origin
1. How do we make use of stoichiometry to determine molecular mass of the original alkai metal carbonate? 2. What is the molecular ratio of the calcium carbonate formed to the ori…
1. How do you account for the difference in the atomic numbers of Uranium-238 an
1. How do you account for the difference in the atomic numbers of Uranium-238 and 82 (lead)? What makes them different? 1.2: The chance of an individual penny "decaying" is one in…
1. How do you account for the difference in the atomic numbers of Uranium-238 an
1. How do you account for the difference in the atomic numbers of Uranium-238 and 82 (lead)? What makes them different? 1.2: The chance of an individual penny "decaying" is one in…
1. How do you use a single Web form to gather and process submitted data. 2. Exp
1. How do you use a single Web form to gather and process submitted data. 2.      Explain the two ways that ASP.NET framework submits data from the controls provided on a Web form…
1. How does Magnesium form a 2+ ion while sulfur forms a 2- ion? 2. Express 85.0
1. How does Magnesium form a 2+ ion while sulfur forms a 2- ion? 2. Express 85.0miles per hour in meters per minute ( 1 km = .60mi) Prove calculations 3.Calculate the energy requi…
1. How does biochemistry differ from organic chemistry? (consider solvents, conc
1. How does biochemistry differ from organic chemistry? (consider solvents, concentrations, reaction temperatures, rates, yields, side reactions) 2. What thermodynamic quantity de…
1. How does catalysis work? a. It speeds up a reaction by lowering the Gibbs fre
1. How does catalysis work? a. It speeds up a reaction by lowering the Gibbs free energy of activation. b. It speeds up a reaction by lowering the Gibbs free energy of the chemica…
1. How does each of the following changes affect the rate of an E2 reaction? tri
1. How does each of the following changes affect the rate of an E2 reaction? tripling [RX] halving [Base] changing the solvent from CH3OH to DMSO changing the leaving group from I…
1. How does one differentiate between formulas of ionic and molecular compounds?
1. How does one differentiate between formulas of ionic and molecular compounds? How is the naming system different for ionic and molecular compounds? 2.Hydrogen peroxide and wate…
1. How does the branched nature of glycogen lead to quick energy release? A. The
1. How does the branched nature of glycogen lead to quick energy release? A. The branching allowes for multiple enzymes to attack simultaneously. B. The branching allows the whole…
1. How does the method of generating a Grignard reagent in this experiment diffe
1. How does the method of generating a Grignard reagent in this experiment differ from that which we performed in the first experiment of this semester? 2. Draw and label active n…
1. How does the titration of a diprotic acid differ from a monoprotic acid (like
1. How does the titration of a diprotic acid differ from a monoprotic acid (like HF)? 2. How does the titration of a weak base with a strong acid differ from weak acid-strong base…
1. How has the climate of earth changed in the past 15,000 years? Describe perio
1. How has the climate of earth changed in the past 15,000 years? Describe periods of alternate warming and cooling and some of the associated environmental effects. 2. One of the…
1. How is a chemical change distinguished from a physical change chemi cal cha t
1. How is a chemical change distinguished from a physical change chemi cal cha that nes lan Ces hcacFion involues making o bonds between ato m 2. List fo ur kinds of observations …
1. How is a fatty acid different from a fat? 2. How are the properties of satura
1. How is a fatty acid different from a fat? 2. How are the properties of saturated fats different from unsaturated fats? 3. How does the structure of a triacylglycerop change in …
1. How is acid strength defined? What dictates the strength of an acid? 2. Expla
1. How is acid strength defined? What dictates the strength of an acid? 2. Explain the trend in acid strength for a binary acid. Justify your answer. 3. Explain the trend in acid …
1. How is the molar solubility of a slightly soluble salt affected by the additi
1. How is the molar solubility of a slightly soluble salt affected by the addition of an ion common to the salt equilibrium? 2. A 3.11 mL volume of a standardized 0.0025 M HCl sol…