Chemistry concepts and calculations

(22 pts) Palladium II and gold (II) can be determined simul ltaneously by comple

(22 pts) Palladium II and gold (II) can be determined simul ltaneously by complexing the two ions with methiomepraziop (C19H24N2Sz. F.W. 344.54). The absorption maximum for the pa…

(25 pts) For the generic reaction 2A(g) 26(g) + C(g), when 1.75 mol of A is adde

(25 pts) For the generic reaction 2A(g) 26(g) + C(g), when 1.75 mol of A is added to a flask at a temperature of 345 K and fixed volume of 12.0 L, at equilibrium the ratio of B:A …

(25%) Problem 2: A point charge P is b 8.5 m above the center of a uniformly Z-a

(25%) Problem 2: A point charge P is b 8.5 m above the center of a uniformly Z-axis charged ring of radius a F 0.46 m sitting in the xy plane with charge Q 8.5 HC Randomized Varia…

(25%) Problem 3: A conducting spherical shell of inner radius R1 and outer radiu

(25%) Problem 3: A conducting spherical shell of inner radius R1 and outer radius R2 has a point charge +q located at its center. The spherical shell has a net charge of tag Othee…

(25%) Problem 3: A conducting spherical shell of inner radius R1 and outer radiu

(25%) Problem 3: A conducting spherical shell of inner radius R1 and outer radius R2 has a point charge +q located at its center. The spherical shell has a net charge of taq ©thee…

(25) Shown below is a Beer\'s law calibration graph obtained at the optimum wave

(25) Shown below is a Beer's law calibration graph obtained at the optimum wavelength for a set of standard solution containing copper (II) sulfate. The linear regression equation…

(25) Shown below is a Beer\'s law calibration graph obtained at the optimum wave

(25) Shown below is a Beer's law calibration graph obtained at the optimum wavelength for a set of standard solution containing copper (II) sulfate. The linear regression equation…

(26pts)4. A nerchlorale in osto f tebm (II) perchlorate [Yb(CIO)] is made by dis

(26pts)4. A nerchlorale in osto f tebm (II) perchlorate [Yb(CIO)] is made by dissolving 208.58g ytterbium (II perchlorate in 950.0 of sol molanty(M.andomm1ofs luton. Dersity ofsol…

(28) (a) From a consideration of the following reactions, calculate H f ° for et

(28) (a) From a consideration of the following reactions, calculate Hf° for ethane, C2H6(g). (1) CH3CHO(g) + 2H2(g) C2H6(g) + H2O(); H°(kJ) = -204 (2) 2H2(g) + O2(g) 2H2O(g); H°(k…

(28) Is the dissolution of NIH Cl exothermic or endothermic? (29) Write the chem

(28) Is the dissolution of NIH Cl exothermic or endothermic? (29) Write the chemical equation for the dissolution of Ni1,CI in water t, if any, experimental evidence do you have t…

(288) ( 2. (20 points) Ammonia and hydrogen chloride react to form solid ammoniu

(288) ( 2. (20 points) Ammonia and hydrogen chloride react to form solid ammonium chloride: NH3(g) + HCl(g) NH4Cl(s) Two 2.00-L flasks at 25°C are connected by a valve, as shown i…

(2S,3S,)-TARTARIC ACID, HOOCCH(OH)CH(OH)COOH HAS AN OPTICALACTIVITY OF -12 DEGRE

(2S,3S,)-TARTARIC ACID, HOOCCH(OH)CH(OH)COOH HAS AN OPTICALACTIVITY OF -12 DEGREES AND THE MP OF 170. A.)WHAT IS THE ABSOLUTE CONFIGURATION, SPECIFICROTATION(OPTICAL ACTIVITY) AND…

(2pt) Based on the solubility curve, which is more soluble in water at 50 o C, N

(2pt) Based on the solubility curve, which is more soluble in water at 50oC, NaNO3, NH4Cl, KClO3, or NaCl? Explain your answer. (2pt) Based on the solubility curve, how many grams…

(2pts + 2pts) Consider the sum program we studied in class consisting of two thr

(2pts + 2pts) Consider the sum program we studied in class consisting of two threads. Shown below. Identify a sequence where all statements are executed and the final value of sum…

(2pts) Formaldehyde Is used to kill viruses without damaging their genetic Infor

(2pts) Formaldehyde Is used to kill viruses without damaging their genetic Information. O True False What is the L.U.PA.C. name of the compound produced in the liver that is respo…

(3 of 32) A student performed the experiment described in this chapter. A 3.50 m

(3 of 32) A student performed the experiment described in this chapter. A 3.50 mL aliquot of 3.00% wt/wt solution of hydrogen peroxide (MM-34.016 g/mol) with density 1.10 g/mL. Th…

(3 points) Timber yield is approximately equal to the volume of a tree, however,

(3 points) Timber yield is approximately equal to the volume of a tree, however, this value is difficult to measure without first cutting the tree down. Instead, other variables, …

(3 points) Which of the following is LESS likely to represent a chromatogram of

(3 points) Which of the following is LESS likely to represent a chromatogram of a mixture with two components? Circleyourchoice clearly andg eyourreasoning briefly, 7. 91o 11 12 1…

(3 points) Which of the following is LESS likely to represent a chromatogram of

(3 points) Which of the following is LESS likely to represent a chromatogram of a mixture with two components? Circleyourchoice clearly andg eyourreasoning briefly, 7. 91o 11 12 1…

(3 pts) In the mass spectrum on page 3, what name do we give the peak at 150 m/z

(3 pts) In the mass spectrum on page 3, what name do we give the peak at 150 m/z units? (1) base peak     (2) molecular ion     (3) molecular fragment       (4) baseline (3 pts) I…

(3%) Problem 13: An object is placed a distance do in front of a concave mirror

(3%) Problem 13: An object is placed a distance do in front of a concave mirror with a radius of curvature r= 15 cm. The image formed has a magnification of M-2.1. 50% Part (a) Wr…

(3%) Problem 20: Analysis of the interference effect in a transparent solid show

(3%) Problem 20: Analysis of the interference effect in a transparent solid shows that the wavelength of the laser passing through the solid is 329 nm inside the solid nMedium Gas…

(3) (16 pts total) Sugars can be digested aerobically or anaerobically (e.g., by

(3) (16 pts total) Sugars can be digested aerobically or anaerobically (e.g., by yeast). During aerobic digestion, sugars react with oxygen to form carbon dioxide and water. Durin…

(3) 4. For each of the following, write down the molecular formula, and identify

(3) 4. For each of the following, write down the molecular formula, and identify as an ionic compound or covalent compound: Calcium chloride methanol carbon tetrachloride (3) 5. W…

(3) 4. For each of the following, write down the molecular formula, and identify

(3) 4. For each of the following, write down the molecular formula, and identify as an ionic compound or covalent compound: Calcium chloride methanol carbon tetrachloride (3) 5. W…

(3) 7. An acid HA is dissolved in water: HA H++ A. [HA] 0.250 Mi [H -4.00 x 10-M

(3) 7. An acid HA is dissolved in water: HA H++ A. [HA] 0.250 Mi [H -4.00 x 10-M; [A1-4.00 x 104 M Calculate the pka for the acid. Show your work below. (2) 8. write the balanced …

(3) A fuel cell is designed to produce electricity via a combustion reaction, us

(3) A fuel cell is designed to produce electricity via a combustion reaction, usually with oxygen. Potential fuels include hydrogen, ammonia, and alcohols, like methanol. The prod…

(3) A. Equilibrium Position -- A + B = C -- Effect of Dilution Iodine is sparing

(3) A. Equilibrium Position -- A + B = C -- Effect of Dilution Iodine is sparingly soluble in pure water. However, it does `dissolve' in solutions containing excess iodide ion bec…

(3) A. Equilibrium Position -- A + B = C -- Effect of Dilution Iodine is sparing

(3) A. Equilibrium Position -- A + B = C -- Effect of Dilution Iodine is sparingly soluble in pure water. However, it does `dissolve' in solutions containing excess iodide ion bec…

(3) About two dimensional arrays. Modified from #9 in page 586-587 (6th edition)

(3) About two dimensional arrays. Modified from #9 in page 586-587 (6th edition) rray called hiLowTemperatures to store the highest and lowest temperatures for Write a program tha…

(3) At room temperature, 80.0 ml of 0.125 M AgNO 3 (aq) and 20.0 ml of 0.500 M F

(3) At room temperature, 80.0 ml of 0.125 M AgNO3(aq) and 20.0 ml of 0.500 M Fe(NO3)2(aq) are mixed together, generating the following equilibrium system Ag+(aq) + Fe2+(aq) -> …

(3) Calculate the heat absorbed by the reaction mixture. You may assume the dens

(3) Calculate the heat absorbed by the reaction mixture. You may assume the density of the reaction mixture was 1.02 g mL-1 and the specific heat of the reaction mixture was 3.822…

(3) Compound 1 in the attached paper is very similar to [Mn(III)(salpn)(H2O)2](C

(3) Compound 1 in the attached paper is very similar to [Mn(III)(salpn)(H2O)2](CF3SO3) you made today. Why did’t we use HClO4/H2O instead of triflic acid for the synthesis? http:/…

(3) From the spectral data (1H, 13C NMR, IR, MS) you were given, identify the st

(3) From the spectral data (1H, 13C NMR, IR, MS) you were given, identify the structure of your product. Explain why you chose your particular product based on the spectroscopic d…

(3) In a personal computer, a disk controller is typically used to transfer a st

(3) In a personal computer, a disk controller is typically used to transfer a stream of bytes from a floppy disk drive to a memory buffer with the help of a host such as the centr…

(3) The flagpole hydrogens are present on the C-1 and C-4 carbon atoms. (4) When

(3) The flagpole hydrogens are present on the C-1 and C-4 carbon atoms. (4) When the temperature is increased, the collision frequency is increased, so the collisions with suffici…

(3) The reaction 2HBre +NOH20w+NO +Brzp) has been studied at 127 C A serics of i

(3) The reaction 2HBre +NOH20w+NO +Brzp) has been studied at 127 C A serics of initial-rate experiments were performed at a constant NO2 pressure of 10 torr but different HBr pres…

(3) Two sheets of metal, one of which was known to be iron and the other nickel,

(3) Two sheets of metal, one of which was known to be iron and the other nickel, were accidentally separated and the identity of each was lost. The sheets were labeled A and B, an…

(3)Mandelonitrile. Mandelonitrile (spectra shown below) is made from benzaldehyd

(3)Mandelonitrile. Mandelonitrile (spectra shown below) is made from benzaldehyde and hydrogen cyanide in the presence of a catalyst. catalyst H + HCNMandelonitrile 100 80 60 m/z …

(3)Mandelonitrile. Mandelonitrile (spectra shown below) is made from benzaldehyd

(3)Mandelonitrile. Mandelonitrile (spectra shown below) is made from benzaldehyde and hydrogen cyanide in the presence of a catalyst. catalyst H + HCNMandelonitrile 100 80 60 m/z …

(30 Points): For each of the following materials, clearly write out an equation

(30 Points): For each of the following materials, clearly write out an equation for their specific enthalpy () and provide the numerical final result: 4. a. Ethylene Glycol@ 400 '…

(30 marks) A 0.40167g sample of crude oil containing an unknown concentration of

(30 marks) A 0.40167g sample of crude oil containing an unknown concentration of natural vanadium was mixed with 0.41946g of spike containing 2.2435umol V/g enriched with 5°V. Aft…

(30 marks) A 0.40167g sample of crude oil containing an unknown concentration of

(30 marks) A 0.40167g sample of crude oil containing an unknown concentration of natural vanadium was mixed with 0.41946g of spike containing 2.2435umol V/g enriched with 5°V. Aft…

(30 points) Question 6 Suppose you have bought a house and you are trying to mak

(30 points) Question 6 Suppose you have bought a house and you are trying to make a decision about whether to purchase a resistive heater or a heat pump; either device would be dr…

(30 pts) Sample Calculations (9 pts) o Concentration of H3O* from the pH of 0.1

(30 pts) Sample Calculations (9 pts) o Concentration of H3O* from the pH of 0.1 M HCI. o Concentration of H3O* from the pH of 0.1 M acetic acid. o Equilibrium concentration of ace…

(30 pts) What are the oxidation numbers of chromium in each of the following com

(30 pts) What are the oxidation numbers of chromium in each of the following compounds: K-CrF [Cr(NHs)6]Cl CrCl2 NH)2Cr20 Cr 40 pts) For each of the following reactions, circle th…

(32%) Problem 2: The magnetic field of a proton is relatively close to that of a

(32%) Problem 2: The magnetic field of a proton is relatively close to that of a circular current loop 0.650 x 10 15 m in radius carrying 1.05 x 10t A. An MRI machine is required …

(32) ? pH of the above soln. pk, (HNO2 8) 8.854 x 102M 335 (a) 7.77 (b) 11.57 (c

(32) ? pH of the above soln. pk, (HNO2 8) 8.854 x 102M 335 (a) 7.77 (b) 11.57 (c) 7.92 (d) 3.64 45.00 ml of a 2.500 x 102 M Ca(OH)2 solution to (33) ?l Ca(OH)2 1 (a) 3.462 x 10-2 …

(34) Using a Joule-Thomson experiment, we want to cool a real gas from 350K to 2

(34) Using a Joule-Thomson experiment, we want to cool a real gas from 350K to 200K. It is known that Ujt= 221K/atm and Cp (T)=6.5 cal / mole.K, and that these two quantities do n…

(37%) Problem 2: Consider the circuit diagram, depicted in the figure. 0.5 1.5 0

(37%) Problem 2: Consider the circuit diagram, depicted in the figure. 0.5 1.5 0.5 2 45 50% Part (a) What equation do you get when you apply the loop rule to the loop abcdefgha in…