Chemistry concepts and calculations

7. In a Knudsen Cell experiment, the rate of effusion of a gas through a small o

7. In a Knudsen Cell experiment, the rate of effusion of a gas through a small orifice is used to determine the vapor pressure of the gas. Since the rate of effusion is proportion…

7. In an electrolytic cell A. a chemical reaction occurs spontaneously and relea

7. In an electrolytic cell A. a chemical reaction occurs spontaneously and releases energy as electricity. B. electricity causes a chemical reaction to occur C. a physical change …

7. In liquid diffusion experiment, you need to prepare NaCl solution by dissolvi

7. In liquid diffusion experiment, you need to prepare NaCl solution by dissolving 5.85 mole/ m and the g of solid NaCl in 100 ml of water. Determine the concentration in mole fra…

7. In order to determine the rate law for this reaction, experiments were run un

7. In order to determine the rate law for this reaction, experiments were run under ''pseudo-order'' conditions, similar to what you used in your kinetics laboratory experiment. T…

7. In the Oxygen Lab, we performed a variety of reactions involving oxygen. Plea

7. In the Oxygen Lab, we performed a variety of reactions involving oxygen. Please provide the balanced, chemical equation for the reaction between copper and oxygen that produced…

7. Is it better to wash a filtered solid with one large portion of cold water or

7. Is it better to wash a filtered solid with one large portion of cold water or a few small portions? Would you get a more accurate mass by: 1) taring filter paper, filtering, dr…

7. Is it better to wash a filtered solid with one large portion of cold water or

7. Is it better to wash a filtered solid with one large portion of cold water or a few small portions? Would you get a more accurate mass by: 1) taring filter paper, filtering, dr…

7. Is the ammonia/ammonium chloride system a buffer system? Why or why not? sea

7. Is the ammonia/ammonium chloride system a buffer system? Why or why not? sea node by niving asoluble Concound that wrth solut ton c Contairs conjbgate oase Ocid When strong aci…

7. Make a maxNode function which is a recursive function (no credit with a loop)

            7. Make a maxNode function which is a recursive function (no credit with a loop). The maxNode function will accept a pointer of a ListNode as a parameter and return th…

7. Meals-ready-to-eat (MREs) are military meals that can be heated on a flameles

7.  Meals-ready-to-eat (MREs) are military meals that can be heated on a flameless heater. The heat is      produced by the following reaction:   Mg(s) + 2 H2O(l)  ?  Mg(OH)2(s) +…

7. Measurement errors might be random or systematic (Silberberg 6th p. 29). Refe

7. Measurement errors might be random or systematic (Silberberg 6th p. 29). Refer to the equilibrium for reaction 1. A likely error systematic error in this experiment is overshoo…

7. Most engineering systems have redundancy. That is, an engineering system has

7. Most engineering systems have redundancy. That is, an engineering system has more than is required to accomplish its purpose. Consider a nuclear reactor whose temperature is mo…

7. Nitric acid (NO) reacts with oxygen gas to form nitrogen dioxide (NO 2 ), a d

7.      Nitric acid (NO) reacts with oxygen gas to form nitrogen dioxide (NO2), a dark brown gas: 2NO(g) + O2(g) ? 2NO2(g) In one experiment 0.886 mole of NO is mixed with 0.503 m…

7. Nuclear energy question: (show your work) a. If thorium (molecular weight = 2

7. Nuclear energy question: (show your work) a. If thorium (molecular weight = 229 grams per mol) is being used as fuel in a nuclear power plant and the amount of thorium fuel nee…

7. On the basis of EAN rule, identify the first-row transition metal for each of

7. On the basis of EAN rule, identify the first-row transition metal for each of the following a. [M(NH3)6]3. Group Number 18-6 x 2NH3 + 3 = 9, so cobalt b. H3CM(CO)s Group Number…

7. Over the years there have been numerous claims about \"perpetual motion machi

7. Over the years there have been numerous claims about "perpetual motion machines" ", ma- chines that will produce useful work with no input of energy. Answer the following quest…

7. PGE, is a member of the family of compounds known as prostaglandins, which ha

7. PGE, is a member of the family of compounds known as prostaglandins, which have They can affect blood very significant physiological effects in even small quanti pressure, hear…

7. Potassum chlorate e, KCIO, acts as an oxidizing agent in matches, explosives,

7. Potassum chlorate e, KCIO, acts as an oxidizing agent in matches, explosives, flares, and fi ireworks, In the equation below,it is formed from the element chlorine and potassiu…

7. Problem 34 (pg 603) Consider the reaction: 2 H2O3 (aq)- 8 H20(I) + O2(g) The

7. Problem 34 (pg 603) Consider the reaction: 2 H2O3 (aq)- 8 H20(I) + O2(g) The graph below shows the concentration of H202 as a function of time 1.2 1.0 e 0.8 0.6 0.4 0.2 HO2 0 1…

7. Questions 7.1. Which are the factors affecting drug oxidation How to prevent?

7. Questions 7.1. Which are the factors affecting drug oxidation How to prevent? 7.2. When adjusting the pH value of vitamin C injection with NaHCOs, what aspect you should pay at…

7. Questions 7.1. Which are the factors affecting drug oxidation? How to prevent

7. Questions 7.1. Which are the factors affecting drug oxidation? How to prevent? 7.2. When adjusting the pH value of vitamin C injection with NaHCOs, what aspect you should pay a…

7. Solar cell A uses a semiconductor with a band gap of 1 eV. Solar cell B uses

7. Solar cell A uses a semiconductor with a band gap of 1 eV. Solar cell B uses a semiconductor with a band gap of2 eV. Either cell is thick enough to absorb all the light above i…

7. Sulfur oxchloride decomposes to sulfur dioxide and chlorine gases SO2Cl2(g)

7. Sulfur oxchloride decomposes to sulfur dioxide and chlorine gases SO2Cl2(g) <= > SO 2 (g) + CL 2 (g) at equilibrium at given T , the partial pressures are 1.88 atm , 0.84…

7. Supply the needed conversion and solve. ?g 1 12sa = 4.5 mio! H2SO4 - 8. In th

7. Supply the needed conversion and solve. ?g 1 12sa = 4.5 mio! H2SO4 - 8. In the chemical reaction of iron and sulfur, how many moles of sulfur are needed to react with 1.42 mol …

7. Supply the needed conversion and solve. ?g 1 12sa = 4.5 mio! H2SO4 - 8. In th

7. Supply the needed conversion and solve. ?g 1 12sa = 4.5 mio! H2SO4 - 8. In the chemical reaction of iron and sulfur, how many moles of sulfur are needed to react with 1.42 mol …

7. T or F The designated by the quantum numbers n, 1, and m he location of an el

7. T or F The designated by the quantum numbers n, 1, and m he location of an electron in an atom is described by a wavefunction (v) known as an atomic orbital, atomic orbitals ar…

7. T or F The location of an electron in an atom is described by a wavefunction

7. T or F The location of an electron in an atom is described by a wavefunction (w) known as an atomic orbital, atomic orbitals are designated by the quantum numbers n, 1, and m I…

7. Table 1. Ziegler -Nichols Tuning Relation Controller Type Kc 0.5Ku 0.45KuPu/1

7. Table 1. Ziegler -Nichols Tuning Relation Controller Type Kc 0.5Ku 0.45KuPu/1.2 ?? PI PID 0.6Ku Pu/2 Pu/8 Table 2. Tyreus-Luben Tuning Relation Controller Type PI PID Ke 0.31Ku…

7. Table 1. Ziegler -Nichols Tuning Relation Controller Type Kc 0.5Ku 0.45KuPu/1

7. Table 1. Ziegler -Nichols Tuning Relation Controller Type Kc 0.5Ku 0.45KuPu/1.2 ?? PI PID 0.6Ku Pu/2 Pu/8 Table 2. Tyreus-Luben Tuning Relation Controller Type PI PID Ke 0.31Ku…

7. Tetraphosphorous trioxide has which molecular formula? A. 4P3O B. P 3 O 4 C.

7.         Tetraphosphorous trioxide has which molecular formula?             A.        4P3O             B.         P3O4             C.         P4O4             D.        P4O3 9. …

7. The Clausius-Clapeyron equation, which is used to determine the heat of vapor

7. The Clausius-Clapeyron equation, which is used to determine the heat of vaporization of a liquid through a plot of In P versus 1/T, is based on the following assumption(s). a) …

7. The concentrate of carbon dioxide inside a closed container is 0.5 M. What is

7. The concentrate of carbon dioxide inside a closed container is 0.5 M. What is the partial pressure of the carbon dioxide above the liquid? The Henry's Law constant of CO2 is 0.…

7. The concentrate of carbon dioxide inside a closed container is 0.5 M. What is

7. The concentrate of carbon dioxide inside a closed container is 0.5 M. What is the partial pressure of the carbon dioxide above the liquid? The Henry's Law constant of CO2 is 0.…

7. The electrons involved in chemical reactions are a. Valence electrons b. Core

7. The electrons involved in chemical reactions are a. Valence electrons b. Core electrons d. Excited-state electrons e. None of the above 8. The orbital diagram for the oxygen at…

7. The enzyme mannose-6-p isomerase catalyzes the reversible reaction: Mannose-6

7. The enzyme mannose-6-p isomerase catalyzes the reversible reaction: Mannose-6-P (M6P) Fructose-6-P (F6P). The fructose 6-P (FEP) formed can then enter glycolysis. The K 3.1 A) …

7. The enzyme mannose-6-p isomerase catalyzes the reversible reaction: Mannose-6

7. The enzyme mannose-6-p isomerase catalyzes the reversible reaction: Mannose-6-P (M6P) Fructose-6-P (F6P). The fructose 6-P (FEP) formed can then enter glycolysis. The K 3.1 A) …

7. The equilibrium constant expression for 4 NH3(g) + 5 O2(g) + heat 4 NO(g) + 6

7. The equilibrium constant expression for 4 NH3(g) + 5 O2(g) + heat 4 NO(g) + 6 H2O(g) is Keq= [NH3]4 [02]5 B) Kcq = [NO]4 [H2016 D) NO Keq= [NH3]4 [02]5 Keq_ [NH3] [O2] A) 3.6 B…

7. The equilibrium constant, Kc, for the reaction: E(s) + CO2 (g) 2 CO (g) is 0.

7. The equilibrium constant, Kc, for the reaction: E(s) + CO2 (g) 2 CO (g) is 0.113 at 1100 K. What is the concentration of CO in a mixture at equilibrium if the CO2 concentration…

7. The major produco) in the following reaction is (are CH,CH CH OH OCH CH, CHCH

7. The major produco) in the following reaction is (are CH,CH CH OH OCH CH, CHCH2 CH,CH IAJ Only (B) Only ICI A racemic misture o TUl andD ID) Nene of these S. Which of the follow…

7. The most likely to conduct electricity is CdLi because it has free electrons

7. The most likely to conduct electricity is CdLi because it has free electrons whereas other have no free electrons or have a lone pair.. option C is correct 8. Magnesium react w…

7. The number of electrons in pd^t+ is (A) 106. (B) 104. (C) 48 (D) 44. 8. The c

7. The number of electrons in pd^t+ is (A) 106. (B) 104. (C) 48 (D) 44. 8. The correct IUPAC name for Fe3(PO4)2 is (A) iron(II) phosphide (B) iron(II) phosphate. (C) iron(III) pho…

7. The oxidation of oxalate by permanganate (as shown below) was studied in aque

7. The oxidation of oxalate by permanganate (as shown below) was studied in aqueous solution. I 6 H'(aq) + 5C,042-(aq) + 2 MnO4(aq) ? 2 Mn..(aq) 8H20 (I) + 10CO2(g) In one experim…

7. The reaction: has Kp = 45.9 at 763 K. A particular equilibrium mixture at tha

7. The reaction: has Kp = 45.9 at 763 K. A particular equilibrium mixture at that temperature contains gaseous Hl at a partial pressure of 4.00 atm and hydrogen gas at a partial p…

7. The standard width between rails on North American and most European railroad

7. The standard width between rails on North American and most European railroads is 4 ft 8 in. Calculate this distance in b. meters. The heat required to raise the temperature of…

7. The standard width between rails on North American and most European railroad

7. The standard width between rails on North American and most European railroads is 4 ft 8 in. Calculate this distance in a a. centimeters. b. meters. 8. The heat required to rai…

7. The wavelength of light having a frequency of 5.75 Io1 H i SIDE 1 702 nm b. 6

7. The wavelength of light having a frequency of 5.75 Io1 H i SIDE 1 702 nm b. 641 nm c. 674 nm d. 522 nm e. 583 nm 8. transition results in Of the following transitions in the Bo…

7. The way we createhydrogen gas is from steam reforming, which is thisreaction:

7. The way we createhydrogen gas is from steam reforming, which is thisreaction: CH4(g)+ H2O(g) CO(g) + 3 H2(g) (note: we gethydrogen from gasoline, essentially) If Icalculate G° …

7. There are 2 solutions of Hydrochloric acid, HCI, and NaOH available to be mix

7. There are 2 solutions of Hydrochloric acid, HCI, and NaOH available to be mixed Both solutions are 0.4M. Answer the following related questions: a. Write the reaction and label…

7. True or false. (a) Max Planck assumed that energy can be emitted of light fro

7. True or false. (a) Max Planck assumed that energy can be emitted of light from hot objects. Answer: (b) Photons are emitted at discrete wavelengths in line spectra. Answer: in …

7. Tungsten (W) metal, which is used to make incandescent bultb flaments, s prod

7. Tungsten (W) metal, which is used to make incandescent bultb flaments, s produced by the reaction WO, + 3H, 3H0 + w How many grams of H2 are needed to produce 4.60 g of W 18. A…