Chemistry concepts and calculations

3- you are required to seprate ethanol ( boiling point =78 C) from a mixture hav

3- you are required to seprate ethanol ( boiling point =78 C) from a mixture having 3 wt% ethanol and 97 wt% water (boiling point=100 C) at 1 atm. the mixture will not form azeotr…

3-) Which of these is properly termed a \"quaternary ammonium salt\"? b) (CH:CH2

3-) Which of these is properly termed a "quaternary ammonium salt"? b) (CH:CH2CH(CH3)CH2)2NH2 Ch e) None of these choices. 4-) Which of these compounds is expected to possess the …

3-2 Map You\'d like to prepare 250.0 mL of a 0.1840 M NaCI solution using a volu

3-2 Map You'd like to prepare 250.0 mL of a 0.1840 M NaCI solution using a volumetric flask What mass of NaCI will you need? Number What procedure should you use to make the solut…

3-3. Glucose is actively transported into red blood cells by coupling the transp

3-3. Glucose is actively transported into red blood cells by coupling the transport with the hydrolysis of ATP. The overall reaction can be written as ATP+H2O+n Glucose(outside)?n…

3-6 According to the EPA, the maximum contaminant level (MCL) of thallium in dri

3-6 According to the EPA, the maximum contaminant level (MCL) of thallium in drinking water is 0.0020 mg/L. (a) Convert the MCL of thallium from miligrams per liter to parts per b…

3-6 I dont not know how to do. The absence of an M+2 peak with relative abundanc

3-6 I dont not know how to do. The absence of an M+2 peak with relative abundance > 1 indicates that certain elements cannot be present. Which elements cannot be present? Chlor…

3-Isobutyl-1-2-methylheptane B) 3-sec-Butyl-2-methyloctane C) 5-Isobutyl-6-methy

3-Isobutyl-1-2-methylheptane B) 3-sec-Butyl-2-methyloctane C) 5-Isobutyl-6-methylheptane D) 2-Ethyl-3-isopropyloctane E) 4-Isopropyl-3-methylnonane The correct IUPAC name for the …

3. %u2013 Use the mean value that you determined for Keq to calculate the SCN- c

3. %u2013 Use the mean value that you determined for Keq to calculate the SCN- concentration in a solution Fe3+ concentration was 4.00 X10-2M and initial SCN- concentration was 1.…

3. (1 point) How many moles of peroxide must react before the solution turns blu

3. (1 point) How many moles of peroxide must react before the solution turns blue in Reaction for this Lab In this experiment, the reaction to be studied is 31. (aq) + H2O2 (aq) +…

3. (1 pt) The sum of the neutralization of HCI (aq) by NaOH (aq) (Part B) and th

3. (1 pt) The sum of the neutralization of HCI (aq) by NaOH (aq) (Part B) and the ionization of HCaH302 equals the neutralization of HC2H302 (aq) by NaOH (aq) (Part C). Write the …

3. (1 pt) The sum of the neutralization of HCI (aq) by NaOH (aq) (Part B) and th

3. (1 pt) The sum of the neutralization of HCI (aq) by NaOH (aq) (Part B) and the ionization of HCaH302 equals the neutralization of HC2H302 (aq) by NaOH (aq) (Part C). Write the …

3. (1/2 points) Gases that are insoluble in water can be purified by bubbling th

3. (1/2 points) Gases that are insoluble in water can be purified by bubbling them through water. This process removes impurities that are soluble in water. At the same time, wate…

3. (10 marks) The electrochemical cell Zn(s) | Zn2+ (? M) 11 Ni2+ (1.00 M) | Ni(

3. (10 marks) The electrochemical cell Zn(s) | Zn2+ (? M) 11 Ni2+ (1.00 M) | Ni(s) is constructed using a completely immersed zinc electrode that weighs 32.68 g and a nickel elect…

3. (10 marks) When silver nitrate reacts with the molecular base ortho-phenanthr

3. (10 marks) When silver nitrate reacts with the molecular base ortho-phenanthroline, color- less crystals form that contain the transition-metal complex shown below a. What is t…

3. (10 points) Sulfur dioxide, an important intermediate in the synthesis of sul

3. (10 points) Sulfur dioxide, an important intermediate in the synthesis of sulfuric acid, is produced industrially by roasting mineral sulfides, like iron (Il) sulfide. 2 Fe,S,(…

3. (10pts) A flat plate maintained at a temperature of 50°C experiences a flow o

3. (10pts) A flat plate maintained at a temperature of 50°C experiences a flow of at- mospheric air at 15°C. If the temperature gradient at the plate's surface at a given downstre…

3. (2 points) Write a function bibformat_apa_display() that prompts the user for

3.      (2 points) Write a function bibformat_apa_display() that prompts the user for a book title, name of the author, year of publication, publisher and the headquarter city of …

3. (2 pts) Ten drops of 1.0 M NaCO3 are placed into each of two small test tubes

3. (2 pts) Ten drops of 1.0 M NaCO3 are placed into each of two small test tubes. To the first test tube, 2 drops of 0.1 M Ca(NO3)2 is added, and to the second test tube, 2 drops …

3. (20 Points) Thermodynamics \" = + 260.8 kJ AS= + 278.5 J/K Consider the react

3. (20 Points) Thermodynamics " = + 260.8 kJ AS= + 278.5 J/K Consider the reaction, 2 NF3 (g)2N2(g) + 3 F2 (g) alement below is true for the system under standard conditions (all …

3. (20 pts) Airbags in automobiles contain 60.0 g NaN3(s) that, upon sudden dece

3. (20 pts) Airbags in automobiles contain 60.0 g NaN3(s) that, upon sudden deceleration (i.e. impact!), is electrically detonated, resulting in the following instantaneous reacti…

3. (25 points) a. What is the hybridization of the carbon atoms 1 and 2 respecti

3. (25 points) a. What is the hybridization of the carbon atoms 1 and 2 respectively in the following structure? )-CH=CH-CCH 2 2 Answer: sp sp sp , sp sp, sp sp , sp b. Which is t…

3. (25pts) Gamma irradiation is one common method to sterilize orthopedic implan

3. (25pts) Gamma irradiation is one common method to sterilize orthopedic implants. In the late 1990s to early 2000s, researchers identified a potential issue with the standard st…

3. (3 points) (Adapted from Atkins) Borneol (C10H1sO is a terpene occurring in c

3. (3 points) (Adapted from Atkins) Borneol (C10H1sO is a terpene occurring in certain essential oils derived from plants. It is used in traditional medicine, and also can be used…

3. (3 pts) Calculate the solubility (concentration) of hydrogen peroxide, H202,

3. (3 pts) Calculate the solubility (concentration) of hydrogen peroxide, H202, in a raindrop for typical clean-air conditions, assuming that PH202-0.1 x109 atm and the Henry's la…

3. (30 points total) Air in a 600-ft\' container is at ambient condition (25 C &

3. (30 points total) Air in a 600-ft' container is at ambient condition (25 C &1 atm) with the initial mole fraction of water 0.06. In that container, 4.5 lbm dry silica gel a…

3. (30 pts, 2 pts each) Multiple-choice questions from chapter 11. Place the let

3. (30 pts, 2 pts each) Multiple-choice questions from chapter 11. Place the letter representing the correct response in the blank provided. (WHEN YOU ANSWER PLEASE COPY PASTE MY …

3. (30) Steam at 5 bar and 300 C flows through a valve at a mass flaw rate of 15

3. (30) Steam at 5 bar and 300 C flows through a valve at a mass flaw rate of 150 kg/hr and exits at a pressure of 1 bar. Because the valve is not insulated, heat is lost at a rat…

3. (35 points) Ethanol has recently been produced by the following ele reaction,

3. (35 points) Ethanol has recently been produced by the following ele reaction, mentary gas- CH4 CO2 CH COOH + 4H2 using a copper-carbon catalyst in a packed bed reactor at 500K.…

3. (40 pts) The Following is an example of a weighted PSA: Each transition is la

3. (40 pts) The Following is an example of a weighted PSA: Each transition is labeled with an input symbol and a weight. The cost of a path is the sum of the weights of each trans…

3. (40 pts) The Following is an example of a weighted PSA: Each transition is la

3. (40 pts) The Following is an example of a weighted PSA: Each transition is labeled with an input symbol and a weight. The cost of a path is the sum of the weights of each trans…

3. (46 pts) Answer True or False for each of the following questions a) The most

3. (46 pts) Answer True or False for each of the following questions a) The most commonly seen form of DNA double helix in the cell is the A form helix. b) In E coli, the DNA doub…

3. (50) This assi ment is to be completed on a DBMS of your choice Indicate the

3. (50) This assi ment is to be completed on a DBMS of your choice Indicate the name and version of vour DBMS Consider the following schema Suppliers(sid: integer, sname: string, …

3. (6 pts) In your laboratory notebook write down the step-by-step procedure tha

3. (6 pts) In your laboratory notebook write down the step-by-step procedure that you will use to solve the puzzle. Remember to include the preparation of your anal solution. yte …

3. (8 malate synthase catalyzes conversion of the metabolite late to the pts) Th

3. (8 malate synthase catalyzes conversion of the metabolite late to the pts) The enzyme metabolite malate, using the co-factor acetyl-CoA reaction, below). The biochemical stand …

3. (8 points total) (a) (3 points) What is the rate law for an SN2 reaction? (b)

3. (8 points total) (a) (3 points) What is the rate law for an SN2 reaction? (b) (5 points) What happens to the reaction rate when each of the below circumstances is applied to th…

3. (8 points) The emission spectrum of hydrogen can be divided up into series, w

3. (8 points) The emission spectrum of hydrogen can be divided up into series, which repeesent particular electronic transitions in the H atom from higher energy levels to same lo…

3. (8 pts) Water (?=1000 kg/m2, ?=0.001 kg/ms) is discharged to atmosphere as in

3. (8 pts) Water (?=1000 kg/m2, ?=0.001 kg/ms) is discharged to atmosphere as in the figure below. Determine H, i.e. the level of water in the tank, required to maintain a flow ra…

3. (8 pts) Water (?=1000 kg/m2, ?=0.001 kg/ms) is discharged to atmosphere as in

3. (8 pts) Water (?=1000 kg/m2, ?=0.001 kg/ms) is discharged to atmosphere as in the figure below. Determine H, i.e. the level of water in the tank, required to maintain a flow ra…

3. (TCO 5) Write a function that converts an input of some integer number of nic

3. (TCO 5) Write a function that converts an input of some integer number of nickels into outputs of integer numbers of dollars, quarters, and nickels. Do not write a main functio…

3. (TCOs 4 and 8) A health club charges monthly membership fees as follow. Child

3. (TCOs 4 and 8) A health club charges monthly membership fees as follow. Child (18 and under)              $15 per month Adult (19–64)                         $25 per month Seni…

3. (a) A 1 liter closed vessel is contains 400 mls of water and the remaining sp

3. (a) A 1 liter closed vessel is contains 400 mls of water and the remaining space is filled with air. Benzene in an amount of 0.2 gr is added to the vessel. Assuming equilibrium…

3. (a) Calculate the volume of 0.5 M BaCl2, required for complete precipitation

3. (a) Calculate the volume of 0.5 M BaCl2, required for complete precipitation of 2.0 mL of the unknown solution (K2SO4) if its concentration is 0.10 M. (b) Calculate the volume …

3. (a) Clove oil contains about 10% of a minor component that can be hydrolyzed

3. (a) Clove oil contains about 10% of a minor component that can be hydrolyzed to yield the major component and acetic acid. Deduce the structure of the minor component, which ha…

3. (a) The trend in the magnitude of the ionization energy (IE1) going down a gr

3. (a) The trend in the magnitude of the ionization energy (IE1) going down a group is the following (circle your answer): increases decreases remains constant (b) The reason for …

3. (a) Why must anhydrous diethyl ether be used in this reaction? -Grignard reag

3. (a) Why must anhydrous diethyl ether be used in this reaction? -Grignard reagents react immediately with any water present in the reaction mixture -Magnesium reacts vigorously …

3. (from 2.41) In 2010 landfills in the US produced approximately 107.8 Tg CO2e

3. (from 2.41) In 2010 landfills in the US produced approximately 107.8 Tg CO2e of methane emissions. Wastewater treatment plants emitted 16.3 Tg CO2e of methane. (a) How many pou…

3. * (10 marks) The electrochemical cell Zn(s) | Zr\" (? M) 11 Ni2+ (1.00 M) I N

3. * (10 marks) The electrochemical cell Zn(s) | Zr" (? M) 11 Ni2+ (1.00 M) I Ni(s) is constructed using a completely immersed zinc electrode that weighs 32.68 g and a nickel elec…

3. * * (20%) True (T) or false (F) a. For an irreversible reaction aA+bB-eC+dD,

3. * * (20%) True (T) or false (F) a. For an irreversible reaction aA+bB-eC+dD, the reaction rate can be expressed as-k ,this scalled the power law of reaction b The reaction rate…

3. +1.5/5 points | Previous Answers My Notes Ask Your Teacher The water-gas shif

3. +1.5/5 points | Previous Answers My Notes Ask Your Teacher The water-gas shift reaction plays a central role in the chemical methods for obtaining cleaner fuels from coal. CO(g…

3. -133.34 points FSUGenChem2L1 9.PRE.003. My Notes o Ask Your Teacher AG° and E

3. -133.34 points FSUGenChem2L1 9.PRE.003. My Notes o Ask Your Teacher AG° and EP can be said to measure the same thing, and are convertible by the equation AG° = -FE cell where n…