Chemistry concepts and calculations

1. Describe the difference betwwn polar andnon-polar molecules. can you provide

1.   Describe the difference betwwn polar andnon-polar molecules. can you provide examples? 2.   Can you describe each of three IMF(intermolecular force) of attractions? 3.   How …

1. Describe the enthalpy changes during the dissolving of KBr into C 2 H 6 : The

1. Describe the enthalpy changes during the dissolving of KBr into C2H6: The enthalpy of separating the solute is slightly endothermic; the enthalpy of separating the solvent is s…

1. Describe the enthalpy changes during the dissolving of KBr into C 2 H 6 : The

1. Describe the enthalpy changes during the dissolving of KBr into C2H6: The enthalpy of separating the solute is slightly endothermic; the enthalpy of separating the solvent is s…

1. Describe the first step of a general-base-catalyzed dehydration of a hydrate.

1. Describe the first step of a general-base-catalyzed dehydration of a hydrate. 2. 3. 4. 5. Describe the first step of a general-base-catalyzed dehydration of a hydrate. O base a…

1. Describe the function of the following enzymes: glycogen phosphorylase, glyco

1. Describe the function of the following enzymes: glycogen phosphorylase, glycogen synthase, protein kinase a, adenylate kinase, branching enzyme 2. a. Why do cell extracts requi…

1. Describe the major sources of air pollution, and list strategies for minimizi

1. Describe the major sources of air pollution, and list strategies for minimizing their effects. 2. Analyze sources of water pollution, and list ways to protect water quality. 3.…

1. Describe the molecular biology and biochemistry. 2. State the importance of s

1. Describe the molecular biology and biochemistry. 2. State the importance of studying the biological phenomena. 3. Distinguish between prokaryotes and eukaryotes. 4. List the si…

1. Describe the molecular biology and biochemistry. 2. State the importance of s

1. Describe the molecular biology and biochemistry. 2. State the importance of studying the biological phenomena. 3. Distinguish between prokaryotes and eukaryotes. 4. List the si…

1. Describe the process by which Ag + ions are precipitated out of solution. 2.

1.   Describe the process by which Ag+ ions are precipitated out of solution. 2.   A disproportion reaction occurs when NH3 solution reacts with Hg2Cl2. Write a balanced reaction …

1. Describe the process by which Ag+ ions are precipitated out of solution. 2. A

1. Describe the process by which Ag+ ions are precipitated out of solution. 2. A disproportion reaction occurs when NH3 solution reacts with Hg2Cl2. Write a balancedreaction equat…

1. Describe the process by which Ag+ ions are precipitated out of solution. 4. I

1. Describe the process by which Ag+ ions are precipitated out of solution. 4. In your testing, several precipitates are formed, and then dissolved as complexes. Select threeof th…

1. Describe the properties of acids and bases. 2. Define an acid according to th

1. Describe the properties of acids and bases. 2. Define an acid according to the Arrhenius concept. 3. Identify strong and weak acids. 4. Explain the difference between strong an…

1. Describe the relationship between: a. the radius of a cation and that of the

1. Describe the relationship between: a. the radius of a cation and that of the atom from which it is formed. b. the radius of an anion and that of the atom from which it is forme…

1. Describe the relative quantities of the undissociated acid ( HA ) and the dis

1. Describe the relative quantities of the undissociated acid (HA) and the dissociated acid (A-), H+ and OH- through out the titration at a. before pH at half quivalence point b. …

1. Describe the state of a stack and the output after each of the following stac

1. Describe the state of a stack and the output after each of the following stack operations, starting with an empty stack: push(2), push(4), pop(), push(5), top(), pop(), isempty…

1. Describe the trend in halogen reactivity as one progresses down the Group. Ex

1. Describe the trend in halogen reactivity as one progresses down the Group. Explain the trend in terms of the valence electron shell configuration of halogen atoms and the relat…

1. Describe what happens physically (eg., energy, location, nature of motion, et

1. Describe what happens physically (eg., energy, location, nature of motion, etc.) to the electron in a hydrogen atom if it is excited from the 1s to the 2p orbital (the selectio…

1. Design a 1-bit ALU. Below is a block diagram of a simplified ALU. Let?s give

1. Design a 1-bit ALU. Below is a block diagram of a simplified ALU. Let?s give it a carry-in and a carry-out, and let that output bit be low in any case where a carry is not gene…

1. Design a Java application that will read a file(Titanic.txt) containing data

1. Design a Java application that will read a file(Titanic.txt) containing data related to the passengers on the Titanic. The description of the file is shown below. The applicati…

1. Design a Java interface called Priority that includes two methods: setPriorit

1. Design a Java interface called Priority that includes two methods: setPriority and getPriority. The interface should define a way to establish numeric priority among a set of o…

1. Design a class bookType that defines the book as an ADT. ? Create a class dia

1. Design a class bookType that defines the book as an ADT. ? Create a class diagram ? Create a class specification worksheet 2. Each object of the class bookType can hold the fol…

1. Design an equalization basin given the following average hourly flow variatio

1.     Design an equalization basin given the following average hourly flow variations Time (hours) Flow Rate (MGD) 1 22.3 2 17.8 3 12.41 4 10.34 5 8.62 6 7.54 7 8.95 8 15.24 9 27…

1. Determine Km and Vmax for the uninhibited and inhibited enzymatic reaction fr

1. Determine Km and Vmax for the uninhibited and inhibited enzymatic reaction from the linear regression equation produced from the Lineweaver burk plots. 2. is the inhibition com…

1. Determine if the following statements are true or false. True False Standard

1. Determine if the following statements are true or false. True False  Standard reduction potential is an intensive property True False  Reduction takes place at the anode True F…

1. Determine the R f value for the Br - ion in 80% acetone. 2. Which halide ions

1. Determine the Rf value for the Br- ion in 80% acetone. 2. Which halide ions are present in the unknown? 3. Determine the molar mass for each of the alkanes (pentane, hexane, he…

1. Determine the amount of fat from the food sample. Use this value to calculate

1. Determine the amount of fat from the food sample. Use this value to calculate: a) The amount of fat per serving of the food sample. Be sure to compare this value to the fat per…

1. Determine the amount of solute in the following samples: 500 ml of 0.2 M KI (

1. Determine the amount of solute in the following samples: 500 ml of 0.2 M KI (potassium iodide) 220 ml of 0.03 M H2SO4 (sulfuric acid) 2.5 l of 0.1 M MgNO3 (magnesium nitrate) 1…

1. Determine the concentration of sodium hydroxide using the data from the stand

1. Determine the concentration of sodium hydroxide using the data from the standardization experiment. 2. For each trial with the unknown acid, calculate the following -Trial 2: a…

1. Determine the concentration of the pure ASA in the 10.0mL of 1 M NaOH in mg/m

1. Determine the concentration of the pure ASA in the 10.0mL of 1 M NaOH in mg/mL using the Beer's law plot. Then calculate the mass (in mg) of pure ASA knowing that two consecuti…

1. Determine the equilibrium expression for the following reaction 2 NaHCO 3 (s)

1.     Determine the equilibrium expression for the following reaction 2 NaHCO3 (s)   Na2CO3 (s) + H2O (g) + CO2 (g) 2.     Kc = 5.6 × 10-12 at 500 K for the reaction I2 (g)      …

1. Determine the hypothesis of the following procedure 2. Which substance is the

1. Determine the hypothesis of the following procedure 2. Which substance is the organic layer and what will the organic layer dissolve and which part is the aqueous layer and whe…

1. Determine the molarity for lead (II) nitrate at 30 degrees Celsius 2. If a so

1. Determine the molarity for lead (II) nitrate at 30 degrees Celsius 2. If a solution of lead(II) nitrate is prepared by dissolving 150.00 g Pb(NO3)2 in 200.00 ml of water at 50 …

1. Determine the molarity of Fe+3 ions and SO4-2 ions is a solution prepared by

1. Determine the molarity of Fe+3 ions and SO4-2 ions is a solution prepared by dissolving 48.05 g of Fe(SO4)3 in enough water to make 800.0mL of solution. 2. A solution of ethano…

1. Determine the most accurate and precise piece of glassware devise a plan that

1. Determine the most accurate and precise piece of glassware devise a plan that will let you determine which is more accurate and precise at measuring a liquid volume: a pipet or…

1. Determine the number of moles of copper(Il) nitrate in 25.06 mL of a 2.44 M C

1. Determine the number of moles of copper(Il) nitrate in 25.06 mL of a 2.44 M Cu(NO3)2 aqueous solution. A) 0.882 moles B) 0.0595 moles C) 7.52 moles Do.0611 moles 0.02000-M KMnO…

1. Determine the pH (to two decimal places) of the solution that is produced by

1. Determine the pH (to two decimal places) of the solution that is produced by mixing 74.5 mL of 5.92×10-1 M HClO4 with 150 mL of 4.68×10-1 M HCl. 2. Determine the pOH (to two de…

1. Determine the pH and pOH (to two decimal places) for each: (a) Pure water at

1. Determine the pH and pOH (to two decimal places) for each: (a) Pure water at 50°C (K-5476 × 10-14) A: 6.63; 7.37 (b) An aqueous solution containing 3.50 × 10-3 M NaOH (at 250 A…

1. Determine the pH during the titration of 13.4 mL of 0.114 M hydrobromic acid

1. Determine the pH during the titration of 13.4 mL of 0.114 M hydrobromic acid by 4.00×10^-2 M sodium hydroxide at the following points: (a) Before the addition of any sodium hyd…

1. Determine the pH of 100.0mL of a buffer solution containing 0.200M HNO2 and 0

1. Determine the pH of 100.0mL of a buffer solution containing 0.200M HNO2 and 0.200M KNO2. Ka for HNO2 is 4.0x10-4 2. Calculate the pH if 30.00mL of 0.150M NaOH was added to the …

1. Determine the pH of each of the following solutions a) 0.095 M hypochlorous a

1. Determine the pH of each of the following solutions a) 0.095 M hypochlorous acid b) 0.0085 M hydrazine, c) 0.165 M hydroxylamine hypochlorous acid HClO 3.0 x 10-8 = Ka1 3)The a…

1. Determine the pH of the buffer solution that is prepared by mixing 259 mL of

1. Determine the pH of the buffer solution that is prepared by mixing 259 mL of 0.0983 M BISTRIS propaneH (C11H27N2O6+ ) to 855 mL of 0.0729 M BIS-TRIS_propane (C11H26N2O6) ). Ass…

1. Determine the pH of the buffer solution that is prepared by mixing 745 mL of

1. Determine the pH of the buffer solution that is prepared by mixing 745 mL of 0.950 M HEPES-H (CgH18N2O4S) to 47.8 mL of 1.70 M HEPES (CBH17N204S) Assume the 5% approximation is…

1. Determine the partial pressure of hydrogen gas 2. Determine the amount of hyd

1. Determine the partial pressure of hydrogen gas 2. Determine the amount of hydrogen gas (in moles) produced from the magnesium metal. 3. Use the Combined Gas Law to determine th…

1. Determine the percentage of aspirin (acetylsalicylic acid) present in aspirin

1. Determine the percentage of aspirin (acetylsalicylic acid) present in aspirin tablets. Can you make any statements about the other materials aside from aspirin that must be in …

1. Determine the rate law and the value of k for the following reaction using th

1. Determine the rate law and the value of k for the following reaction using the data provided 2 NO+ O2---> 2 NO2        [NO]i M       [O2]i M           Inital Rate (M-1 s-1) …

1. Determine the sample weight of crushed tablet powder needed for a 35-mL titra

1. Determine the sample weight of crushed tablet powder needed for a 35-mL titration with 0.01 N KIO3. The assay is 75%, and the sample is dissolved in 100-mL of solution with a 1…

1. Determine the standard Gibbs energy of reaction, r G°, for the following reac

1. Determine the standard Gibbs energy of reaction, rG°, for the following reaction at 306.81 K given that the measured standard reduction potential, Ered°, was 0.199 V. This valu…

1. Determine the symmetries of the 3d, 4s and 4p atomic orbitals of the central

1. Determine the symmetries of the 3d, 4s and 4p atomic orbitals of the central atom in a square planar ML4, molecule 2. Sketch the ligand group orbitals, assign symmetry and labe…

1. Determine the terminal settling velocity and Reynolds number of cast iron dus

1. Determine the terminal settling velocity and Reynolds number of cast iron dust particles (density 7593 kg/) having a diameter of 45 micrometers in air at 2832 K and 101.325 kPa…

1. Determine whether a precipitate will form when 100.0 mL of 4.0x10^-3 M BaCl2

1. Determine whether a precipitate will form when 100.0 mL of 4.0x10^-3 M BaCl2 and 300.0 mL of 6.0x10^-4 M Na2SO4 are mixed. (8 pts.) 13. Determine whether a precipitate will for…