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Chemistry concepts and calculations

117302 questions • Page 2144 / 2347

\"A chemistry student related the following story: I noticed my car tires were a
"A chemistry student related the following story: I noticed my car tires were a bit low and. went to the gas station. As I was filling the tires with air, I thought about the idea…
\"A diamond is forever\" is one of the most successful advertising slogans of al
"A diamond is forever" is one of the most successful advertising slogans of all time. Bui is it true? For the reaction shown below, calculate the standard free energy change at 29…
\"A fellow student obtained the following data for their calorimetry experiment.
"A fellow student obtained the following data for their calorimetry experiment. Calculate the initial temperature of the warm water, based on these data. Student's Data: --Mass of…
\"A sample of silver (106 g) was heated inside a dry test tube in a water bath u
"A sample of silver (106 g) was heated inside a dry test tube in a water bath until the silver was the same temperature as the water. The temperature of the water was found to be …
\"A sample of silver (106 g) was heated inside a dry test tube in a water bath u
"A sample of silver (106 g) was heated inside a dry test tube in a water bath until the silver was the same temperature as the water. The temperature of the water was found to be …
\"A solution that possibly contains NaOH, Na2CO3, or NaHCO3 either alone or in a
"A solution that possibly contains NaOH, Na2CO3, or NaHCO3 either alone or in a compatible combination is analyzed by titration with 0.1202 M HCl. The first titration uses 25.00 m…
\"A voltaic cell is constructed from two half-cells; silver wire dipped in 50.0m
"A voltaic cell is constructed from two half-cells; silver wire dipped in 50.0ml AgNO3 (aq) of unknown concentration and nickel wire dipped in 50.0ml 0.400M Ni(NO3)2 (aq). The mea…
\"ASG2216 Assignment09 5-figure 07 gif 418x5. x \\eChegg Study Guided e VASG2216
"ASG2216 Assignment09 5-figure 07 gif 418x5. x eChegg Study Guided e VASG2216 Assignmen e VASG22 16 Assig T09 × e chemistry question c × e Europiumis A Lanthan × × × C www.webassi…
\"Abstract class\" and \"interface\" are similar concepts, with interface being
"Abstract class" and "interface" are similar concepts, with interface being the more abstract of the two. One differentiating factor is that abstract classes provide method implem…
\"Acid-base buffers are most effective when the target pH of the buffer solution
"Acid-base buffers are most effective when the target pH of the buffer solution is close (within one unit) to the pKa of the conjugate acid in in the conjugate acid/base pair to b…
\"As long as it doesn\'t kill you, college is a lot of fun.\" -L According to th
"As long as it doesn't kill you, college is a lot of fun." -L According to the ideal gas law pV - nRT Starting with eq 1.1, find the following two partial derivatives: (partial di…
\"Attach six plots (3per trial) to this report form. Angraphs should include pro
"Attach six plots (3per trial) to this report form. Angraphs should include properly labeled axis and include the linear equation ofthe line with R values Plot of Trial 1 Trial 2 …
\"Balancing a Limiting reagent Reaction and Determining the Formula of a product
"Balancing a Limiting reagent Reaction and Determining the Formula of a product by finding the molar ratio of the reactants" Context- In this lab we titrated 0.02M KMNo4 into a fl…
\"Buffer capacity is a measure of a buffer solution\\\'s resistance to changes i
"Buffer capacity is a measure of a buffer solution's resistance to changes in pH as strong acid or base is added. Suppose that you have 145 mL of a buffer that is 0.140 M in both …
\"Business Rules In Data\" Based on your experience, identify one example of a b
"Business Rules In Data" Based on your experience, identify one example of a business function/operation. Explain the business function /operation in the context of business data …
\"C++ HW Assign Help\" The files List.h, List.cpp, and lab07.cpp have been provi
"C++ HW Assign Help" The files List.h, List.cpp, and lab07.cpp have been provided with this assignment. You will only modify one file, List.cpp. Look for the comments marking wher…
\"Calculate the potential for the titration of 50 mL of 0.1 M Fe2+ in 1M Hal wit
"Calculate the potential for the titration of 50 mL of 0.1 M Fe2+ in 1M Hal with 0.25 M MnO4- at the following volumes: at the half-way point, at the equivalence point, and 20 mL …
\"Determination of the Composition of a TUMs Tablet\" DATAfile; Exact amount of
"Determination of the Composition of a TUMs Tablet" DATAfile; Exact amount of NaOH used for the *1.00 Molar' solution: 18.81 grams of NaOH in a 0.250 ml volumetric flask Exact amo…
\"Explain why a particular solvent system gives a different set of Rf values whe
"Explain why a particular solvent system gives a different set of Rf values when compared to a different solvent system." We did TLC and Column Chromatography in order to determin…
\"File Compression\" Please respond to the following: 1-Research the Internet or
"File Compression"  Please respond to the following: 1-Research the Internet or create your own files which meet the following criteria: a) gzip compresses by more than 80 percent…
\"For the reaction 2 N2O5 --> 4 NO2 + O2 the rate constant is 6.82 x 10^-3 s^-1
"For the reaction 2 N2O5 --> 4 NO2 + O2 the rate constant is 6.82 x 10^-3 s^-1 at 70 degrees Celsius. The reaction is first order overall. If you start with 0.350 mol of dinitr…
\"Fraction 2\" and 3mL of distillate. (the width has already been multiplied by
"Fraction 2" and 3mL of distillate. (the width has already been multiplied by 1/2 as directed) Peak A: Height 35mm and the width 1.5mm. Peak area = 52.5mm2 Peak B: Height 14.5mm a…
\"Graph the following data for vapor pressure of ammonia using excel or another
"Graph the following data for vapor pressure of ammonia using excel or another computer program and from the graph determine the heat of vaporization and the normal boiling point …
\"Hard\" water contains alkaline earth cations such as Ca^2+, which reacts with
"Hard" water contains alkaline earth cations such as Ca^2+, which reacts with CO_3^2- to form insoluble deposits of CaCO_3. You may want to reference (pages 700 - 704) Section 16.…
\"I am redo the exam and I have to explain why the choices are correct or wrong.
"I am redo the exam and I have to explain why the choices are correct or wrong. So please help me. Which of the following statement about resonance structures is FALSE A Resonance…
\"I am redo the exam and I have to explain why the choices are correct or wrong.
"I am redo the exam and I have to explain why the choices are correct or wrong. So please help me. Which of the following statement about resonance structures is FALSE A Resonance…
\"I am so excited about out trip to the Caribbean!\" exclaimed sure. \"We board
"I am so excited about out trip to the Caribbean!" exclaimed sure. "We board the airplane on Friday, do some sightseeing on Saturday, go scuba diving on Sunday afternoon, and then…
\"I cricket 10:41 AM 83% d. What is the freezing point of a saturated solution o
"I cricket 10:41 AM 83% d. What is the freezing point of a saturated solution of 1-butanol in water K' for water 1860.7m 2. Calcium chloride absorbs water from the air to form cal…
\"I cricket 10:41 AM 83% d. What is the freezing point of a saturated solution o
"I cricket 10:41 AM 83% d. What is the freezing point of a saturated solution of 1-butanol in water K' for water 1860.7m 2. Calcium chloride absorbs water from the air to form cal…
\"IP Basic Concepts\" 1--Suppose that you work for a company that has been using
"IP Basic Concepts"   1--Suppose that you work for a company that has been using IPv4 in each of its networks. After hearing a discussion about the differences between IPv4 and IP…
\"In the preparation of the originally published paper a relevant theoretical pa
"In the preparation of the originally published paper a relevant theoretical paper was not discussed as it was missed in the literature survey. It is particularly interesting to c…
\"In the preparation of the originally published paper a relevant theoretical pa
"In the preparation of the originally published paper a relevant theoretical paper was not discussed as it was missed in the literature survey. It is particularly interesting to c…
\"In the reaction Cl2(g) + S2O3 (2-)(aq) ? Cl?(aq) + SO4 (2-)(aq) of the thiosul
"In the reaction Cl2(g) + S2O3 (2-)(aq) ? Cl?(aq) + SO4 (2-)(aq) of the thiosulfate ion with chlorine gas in an acidic solution: Balance the equation using oxidation and reduction…
\"In this experiment, you will study the equilibrium conditions of six different
"In this experiment, you will study the equilibrium conditions of six different reactions. You will first establish the equilibrium by mixing the solutions provided for each react…
\"In this experiment, you will study the equilibrium conditions of six different
"In this experiment, you will study the equilibrium conditions of six different reactions. You will first establish the equilibrium by mixing the solutions provided for each react…
\"Liquid-Liquid Extraction\" Post-lab Questions (14 points) The following data t
"Liquid-Liquid Extraction" Post-lab Questions (14 points) The following data table comes from: Edwards, Lunat, Garner-O'Neale, and Kulikov, Distribution of Caffeine between Select…
\"Liquid-Liquid Extraction\" Post-lab Questions (14 points) The following data t
"Liquid-Liquid Extraction" Post-lab Questions (14 points) The following data table comes from: Edwards, Lunat, Garner-O'Neale, and Kulikov, Distribution of Caffeine between Select…
\"Low concentrations of dioxin near the detection limit gave the following dimen
"Low concentrations of dioxin near the detection limit gave the following dimensionless instrument readings: 193.3, 156.5, 150.3, 162.3, 207.3, 148.1, 211.1, 189.7, 122.7, and 193…
\"Making Decisions in C++ using Conditions, Operators and Values \" Please respo
"Making Decisions in C++ using Conditions, Operators and Values " Please respond to the following: As explained in the text, pseudocode is an informal mixture of C++ statements an…
\"Match each photon to the results of its absorbtion (or lack there of).\" yeah
"Match each photon to the results of its absorbtion (or lack there of)." yeah so thats wrong lol help? General Chemistry 4th Edition University Science Books presented by Sapling …
\"Mathematics is a language in which one cannot express unprecise or nebulous th
"Mathematics is a language in which one cannot express unprecise or nebulous thoughts." - Henri Poincaire The pressure and temperature at the surface of the planet Mars are p = 60…
\"Native,\" or elemental copper can be found in nature, but most copper is mined
"Native," or elemental copper can be found in nature, but most copper is mined as oxide or sulfide minerals. Chalcopyrite (CuFeS2) is one copper mineral that can be converted to e…
\"Native,\" or elemental copper can be found in nature, but most copper is mined
"Native," or elemental copper can be found in nature, but most copper is mined as oxide or sulfide minerals. Chalcopyrite (CuFeS2) is one copper mineral that can be converted to e…
\"Native,\" or elemental copper can be found in nature, but most copper is mined
"Native," or elemental copper can be found in nature, but most copper is mined as oxide or sulfide minerals. Chalcopyrite (CuFeS2) is one copper mineral that can be converted to e…
\"Nicotine in cigar smoke (pH 8.5) is much more readily absorped through the muc
"Nicotine in cigar smoke (pH 8.5) is much more readily absorped through the mucous membranes of the mouth than is nicotine in cigarette smoke (pH 5.3)..." [pKa for the pyridine NH…
\"Parameters and Overloaded Methods\" Please respond to the following: Imagine t
"Parameters and Overloaded Methods"  Please respond to the following: Imagine that you are creating a program for calculating an average of either two (2) or three (3) numbers. De…
\"Pentiometric Analysis experiment\" The first page displays my results (which I
"Pentiometric Analysis experiment" The first page displays my results (which I was able to graph on my own), but I could use help on the second page... 1. Complete the products fo…
\"Photo- gray\" lenses for eyeglasses darken in bright sunshine because lenses c
"Photo- gray" lenses for eyeglasses darken in bright sunshine because lenses contain tiny, transparent AgCl crystals. Exposures to light removes electrons from Cl^- ions, forming …
\"Photo-gray\" lenses for eyeglasses darken in bright sunshine because the lense
"Photo-gray" lenses for eyeglasses darken in bright sunshine because the lenses contain tiny, transparent AgCl crystals. Exposure to light removes electrons from Cl- ions, forming…
\"Planning Operations Master Role Placement\" Please respond to the following: S
"Planning Operations Master Role Placement"  Please respond to the following: Suppose you have been charged with setting up the Operations Master Roles (OMRs) for a company networ…