Chemistry concepts and calculations

1. For which process is DS negative? Condensation of 1 mol of CHO3(g) mbing 15 m

1. For which process is DS negative? Condensation of 1 mol of CHO3(g) mbing 15 mL ethanol with 5 mL water 1 mol hydrogen gas expands at constant temperature from 0.5 liters to 1.0…

1. Formation of ATP as a result of passage of electrons through the ETC is somet

1. Formation of ATP as a result of passage of electrons through the ETC is sometimes called oxidative phosphorylation because: a. As substrates are reduced, ADP is converted to AT…

1. Fortified rice-soy meals can be delivered to countries where hunger and malnu

1. Fortified rice-soy meals can be delivered to countries where hunger and malnutrition occur clue to various factors such as war and natural disasters. They may contain vitamin p…

1. Four capacitors are connected to a battery as shown in the figure below. The

1. Four capacitors are connected to a battery as shown in the figure below. The four capacitors have capacitance values of Ci3.00 nF, C22.00 nF, C3 4.00 nF, and C46.00 nF. The pot…

1. Franklin College plans to use spent cooking oil from the university cafeteria

1. Franklin College plans to use spent cooking oil from the university cafeteria to power all lawn equipment on campus, after it is converted to bio-diesel fuel. The chemistry dep…

1. Freezing point of pure acedic acid: 14.5 degrees C volume of water/acedic aci

1. Freezing point of pure acedic acid: 14.5 degrees C volume of water/acedic acid solution: 20 ml acedic acid and 1 ml water freezing point of water/acedic acid solution: 7.9 degr…

1. From a plot of your calibration data, the slope is found to be 31.5. What wil

1.From a plot of your calibration data, the slope is found to be 31.5. What will be the concentration of your absorbing species in a solution that has an absorbance of 0.446? 2. U…

1. From the data below, calculate the moles of magnesium used: Linear density of

1. From the data below, calculate the moles of magnesium used: Linear density of Mg ribbon: 1.084 g/m (given in lab) Length used: 6.18 cm 2. From the data below, calculate the mol…

1. From the volume of titrant added, calculate the moles of vitamin C for each t

1. From the volume of titrant added, calculate the moles of vitamin C for each titration. Show a sample calculation for trial 1, and then just state the final results for the calc…

1. Fructose, C6H12O6 (s), is a sugar found in fruits and a source of energy for

1. Fructose, C6H12O6 (s), is a sugar found in fruits and a source of energy for the body. The combustion of fructose takes place according to the following equation: C6H12O6 (s) +…

1. Fuels for motor vehicles other than gasoline are being evaluated because they

1. Fuels for motor vehicles other than gasoline are being evaluated because they generate lower levels of pollutants than does gasoline. Compressed propane(C3H8) has been suggeste…

1. Fuels for motor vehicles other than gasoline are being evaluated because they

1. Fuels for motor vehicles other than gasoline are being evaluated because they generate lower levels of pollutants than does gasoline. Compressed propane(C3H8) has been suggeste…

1. Gallium arsenide (GaAs) has a complex face-centered cubic (FCC) crystal struc

1. Gallium arsenide (GaAs) has a complex face-centered cubic (FCC) crystal structure with tetrahedral bonding between atoms and half of its tetrahedral sites filled. If its lattic…

1. Gasoline (assumed to be 100% octane) is combusted in your car according to th

1. Gasoline (assumed to be 100% octane) is combusted in your car according to the following chemical reaction: 2 C8H18 + 25 O2 -> 16 CO2 + 18 H2O For each kg of octane burned, …

1. Gasoline is comprised of many different compounds, but one of them is octane,

1. Gasoline is comprised of many different compounds, but one of them is octane, CaH The combustion of liquid octane with oxygen gas yields two products, carbon dioxide and water …

1. Give a rationalization for the stability of Sn(II) and Sn(IV) versus Sn(III).

1. Give a rationalization for the stability of Sn(II) and Sn(IV) versus Sn(III). 2. Several exotic organometallic compounds of Sn(II) have recently been prepared and structurally …

1. Give a set of four quantum numbers that are not allowed: n=____ l=____ ml=___

1. Give a set of four quantum numbers that are not allowed: n=____ l=____ ml=_____ ms=_____ 2. And electron is in 11 D orbital period give a set of four valid quantum numbers for …

1. Give an explanation for the following: a. Cyclopentadiene dimerizes more read

1. Give an explanation for the following: a. Cyclopentadiene dimerizes more readily than acyclic dienes. b. Cyclopentadiene reacts more rapidly with maleic anhydride than with ano…

1. Give chemical (not ionic) equations for the reactions that will occur during

1. Give chemical (not ionic) equations for the reactions that will occur during this experiment. OHT 3 H20 2. What are the sources of heat released and absorbed in this experiment…

1. Give chemical (not ionic) equations for the reactions that will occur during

1. Give chemical (not ionic) equations for the reactions that will occur during this experiment. OHT 3 H20 2. What are the sources of heat released and absorbed in this experiment…

1. Give the best product of the following reaction: HBr excess A. B. C. D. E. Br

1. Give the best product of the following reaction: HBr excess A. B. C. D. E. Br Br Br Br Br Br Br 2. What configurations are found in the product(s) of the reaction below: A. 1R,…

1. Give the conjugate base of each of the following: HSO3 ; HCOj ; H20; 2. Give

1. Give the conjugate base of each of the following: HSO3 ; HCOj ; H20; 2. Give the conjugate acid of each of the following: so ;cof H2O oH: 3. For each of the following reactions…

1. Give the correct IUPAC name for the following 2. Give the E and Z structures

1. Give the correct IUPAC name for the following 2. Give the E and Z structures of 4-ethyl-3-heptene compound (be sure to designate Z/E isomerism where appropriate). and designate…

1. Give the molecular shapes for the following compounds and ions. A)CO2 B)XeF4

1. Give the molecular shapes for the following compounds and ions. A)CO2 B)XeF4 C)SeO2 D)IF5 E)AsF4 F)CH3COOH (determine the shapes for each C) G)Phosphate ion H)Ammonium ion I)Bi…

1. Give the number of lone pairs around the central atom and the molecular geome

1. Give the number of lone pairs around the central atom and the molecular geometry of SeF4. Question 1 options: 0 lone pairs, tetrahedral 1 lone pair, distorted tetrahedron (sees…

1. Give the oxidation number for the specified atom in the following compounds.

1. Give the oxidation number for the specified atom in the following compounds. a) Aluminum in Al2O3 b) Phosphorus in phosphoric acid, H3PO4 c) Chromium in dichromate ion, Cr2O7^2…

1. Give the pH of 0.1M NaH2PO4 to 3 sig figs: Ka’s are 7.5 x 10-3, 6.2 x 10-8, 4

1. Give the pH of 0.1M NaH2PO4 to 3 sig figs: Ka’s are 7.5 x 10-3, 6.2 x 10-8, 4.8 x 10-13 2. Consider the titration of H3PO4 with NaOH. At which points in the titration would the…

1. Give the structure of the products you would expect from the reaction (if any

1.      Give the structure of the products you would expect from the reaction (if any) of 3-hexyne with: a.      One molar equivalent of HCl b.      Two molar equivalents of HCl c…

1. Give the two differences that are typically observed when comparing the melti

1.  Give the two differences that are typically observed when comparing the melting behavior of an impure compound with that of a pure sample of the same compound. 2.  In attempti…

1. Give three examples where poolarimeters are used in daily ruitine processes.

1. Give three examples where poolarimeters are used in daily ruitine processes. Explain the working principle in those specific applications. 2. Refractive index of ethanol-water …

1. Give two examples of Operating Systems. 2. Unicode is a world standard to rep

1. Give two examples of Operating Systems. 2. Unicode is a world standard to represent _________________ 3. Java is a high-level language.. true or false? 4. Java is an object-ori…

1. Given 1.0 molal solutions of sodium chloride, sucrose and calcium chloride, c

1. Given 1.0 molal solutions of sodium chloride, sucrose and calcium chloride, choose the one with the: a. highest freezing point c. highest boiling point b. lowest freezing point…

1. Given an array of values which initially contains 9 8 7 6 5 4 3 2 1, what doe

1. Given an array of values which initially contains 9 8 7 6 5 4 3 2 1, what does the array look like after insertion sort has executed 3 passes, which means that the first 4 valu…

1. Given five memory partitions of 100 KB, 500 KB, 200 KB, 300 KB, and 600 KB (i

1. Given five memory partitions of 100 KB, 500 KB, 200 KB, 300 KB, and 600 KB (in that order), how would the first-fit, best-fit, and worst-fit algorithms place processes of 212 K…

1. Given five memory partitions of 100 KB, 500 KB, 200 KB, 300 KB, and 600 KB (i

1. Given five memory partitions of 100 KB, 500 KB, 200 KB, 300 KB, and 600 KB (in that order), how would the first-fit, best-fit, and worst-fit algorithms place processes of 212 K…

1. Given five memory partitions of 100 KB, 500 KB, 200 KB, 300 KB, and 600 KB (i

1. Given five memory partitions of 100 KB, 500 KB, 200 KB, 300 KB, and 600 KB (in that order), how would the first-fit, best-fit, and worst-fit algorithms place processes of 212 K…

1. Given kB=0.0020 kcal/mol-K, find the probability of each of two states: one w

1. Given kB=0.0020 kcal/mol-K, find the probability of each of two states: one with energy 12.32 kcal/mol and the other with an energy of 14.91 kcal/mol at a temperature of 381 K.…

1. Given that ( R )-alpha-methylbenzylamine has a specific rotation of +30.5 o a

1. Given that (R)-alpha-methylbenzylamine has a specific rotation of +30.5o and (S)-alpha-methylbenzylamine has a specific rotation of -30.5o, what is the optical purity of a mixt…

1. Given that the bond strength of the C-3H bond is 6.3 kJ/mol greater than that

1. Given that the bond strength of the C-3H bond is 6.3 kJ/mol greater than that of C-1H bond, calculate the change in the rate that would be expected on replacing 1H by 3H in a C…

1. Given that the standard enthalpy of formation of atomic hydrogen, H(g), is -2

1. Given that the standard enthalpy of formation of atomic hydrogen, H(g), is -219.0 kJ/mol, find the standard reaction enthalpy for the reaction H2(g) -> 2H(g) 2. Sulfur has t…

1. Given the amounts, find the limiting reactant for cach reaction mixture. Some

1. Given the amounts, find the limiting reactant for cach reaction mixture. Some balancing may be nocessary! a) 60 mL of .O M NaO is added to 12.0 mL of 0.50 M H:S0 b) 50.0 mL of …

1. Given the concentrations, calculate the equilibrium constant for this reactio

1. Given the concentrations, calculate the equilibrium constant for this reaction: I2(g) +Cl2(g)2ICl(g) At equilibrium, the molar concentrations for reactants and products are fou…

1. Given the equations: N 2 (g) + O 2 (g) ® 2NO (g) H = +180.7 kJ 2NO (g) + O 2

1.             Given the equations:                          N2(g) + O2(g) ® 2NO(g)                    H = +180.7 kJ                                                               …

1. Given the following data for this reaction 2A B-a C D Experiment (Al (B) Init

1. Given the following data for this reaction 2A B-a C D Experiment (Al (B) Initial rate (M/s) 0.125 0.150 1.04 x 102 o 250 0.150 4.18 x 10 0.250 0.300 4.18 x 10 0.500 0.150 1.68 …

1. Given the following formulas for algorithm efficiency, express each formula i

1.       Given the following formulas for algorithm efficiency, express each formula in Big O notation:           a. n2 + 5n           b. 3n2 + 15n3           c. 150n + 200       …

1. Given the following reaction 2C 2 H 6 ( l ) + 7 O 2 (g) ® 4CO 2 (g) + 6H 2 O(

1. Given the following reaction     2C2H6(l)   +      7 O2(g)   ®           4CO2(g)      +        6H2O(l) How many moles of water are produced when 4.5 moles of oxygen react?     …

1. Given the following reaction: H2(g)+I2(s) ? 2HI(g) with a ? H of 52.9 kJ. Wha

1. Given the following reaction: H2(g)+I2(s) ? 2HI(g) with a ? H of 52.9 kJ. What is the change in enthalpy for the following reaction: HI(g) ? H2(g)+ I2(s)? Express your answer i…

1. Given the following reactions determine whether each will favor the products

1. Given the following reactions determine whether each will favor the products or the reactants: Reaction 1: Acetic Acid + Hydroxide lonAcetate lon +Water (pKa Acetic Acid-4.8, p…

1. Given the following set of retrieved documents with relevance judgments TERM

1. Given the following set of retrieved documents with relevance judgments TERM T1 T2 T3 T4 T5 T6 QUERY 0 0 0 2 1 0 REL D1 0 4 4 0 2 0 REL D2 0 2 6 0 0 0 REL D3 6 0 0 0 0 0 NOT RE…

1. Given the following set of retrieved documents with relevance judgments TERM

1. Given the following set of retrieved documents with relevance judgments TERM T1 T2 T3 T4 T5 T6 QUERY 0 0 0 2 1 0 REL D1 0 4 4 0 2 0 REL D2 0 2 6 0 0 0 REL D3 6 0 0 0 0 0 NOT RE…