Chemistry concepts and calculations
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A eco-conscious dad notices that we left the computer and light on from the last
A eco-conscious dad notices that we left the computer and light on from the last homework. After scolding us about the electrical bill, he turns them both off, and they eventually…
A electrolytic cell is set up as was done in this experiment but with a differen
A electrolytic cell is set up as was done in this experiment but with a different metal. An average current of 135.4 mA is delivered for 15 minutes and 23 seconds. The cathode gai…
A electrolytic cell operating under standard conditions (1.0 M ion concentration
A electrolytic cell operating under standard conditions (1.0 M ion concentrations) utilizes the following reaction: What is the effect on the cell emf of each of the following cha…
A electrolytic cell similar to that shown in the figure above is constructed. Th
A electrolytic cell similar to that shown in the figure above is constructed. The electronic device shown at the top of the figure is a power supply. One electrode compartment con…
A facility releases 105181.44 lb/yr of VOC from the application of paint and the
A facility releases 105181.44 lb/yr of VOC from the application of paint and the toxic constituents of VOC in the paint are: xylene (0.92% by weight), cumene (0.40% by weight) and…
A fairly new concept in Malware, especially in the case of botnets, is the emerg
A fairly new concept in Malware, especially in the case of botnets, is the emergence of social botnets. These botnets are comprised of accounts (either a newly created account or …
A falling film absorber is designing for transferring oxygen into a process stre
A falling film absorber is designing for transferring oxygen into a process stream. In total, we will be treating Q 80 L/min of an aqueous solution whose density and viscosity is …
A falling film absorber is designing for transferring oxygen into a process stre
A falling film absorber is designing for transferring oxygen into a process stream. In total, we will be treating Q 80 L/min of an aqueous solution whose density and viscosity is …
A farmer applies 1700.0 kg of fertilizer to his crops each year containing 10.0%
A farmer applies 1700.0 kg of fertilizer to his crops each year containing 10.0% nitrogen, 15.0% washes off into a stream. The river flows at an average rate of 0.160 feet cubed p…
A farmer wants to build a fence to enclose an area of his field. The field is bo
A farmer wants to build a fence to enclose an area of his field. The field is bordered on the north by a river, which does not need a fence (see diagram below). The farmer can cho…
A fast pyrolysis process yields 15%wt (d.b.) raw char which contains only 80% of
A fast pyrolysis process yields 15%wt (d.b.) raw char which contains only 80% of pure carbon. Could it possibly provide the heat needed for the feedstock to rea…
A fast substitution reaction ensues when a certain alcohol is tested with Lucas
A fast substitution reaction ensues when a certain alcohol is tested with Lucas Reagent (concentrated HCl and ZnCl2). An upper layer of an alkyl chloride will form and may be seen…
A father ran out of breast milk for his 4 month old so gave her formula. The bab
A father ran out of breast milk for his 4 month old so gave her formula. The baby had a very wet diaper , including diarrhea and a bright red rash all over. He looked in refrigera…
A feed of 10000 kg of soybeans is processed in a sequence of 3 stages. The feed
A feed of 10000 kg of soybeans is processed in a sequence of 3 stages. The feed contains 35 wt% protein, 27.1 wt% carbs, 9.4 wt% fiber and ash, 10.5 wt% moisture, and 18.0 wt% oil…
A feed of 10000 kg of soybeans is processed in a sequence of 3 stages. The feed
A feed of 10000 kg of soybeans is processed in a sequence of 3 stages. The feed contains 35 wt% protein, 27.1 wt% carbs, 9.4 wt% fiber and ash, 10.5 wt% moisture, and 18.0 wt% oil…
A feed of 10000 kg of soybeans is processed in a sequence of 3 stages. The feed
A feed of 10000 kg of soybeans is processed in a sequence of 3 stages. The feed contains 35 wt% protein, 27.1 wt% carbs, 9.4 wt% fiber and ash, 10.5 wt% moisture, and 18.0 wt% oil…
A feed of 10000 kg of soybeans is processed in a sequence of 3 stages. The feed
A feed of 10000 kg of soybeans is processed in a sequence of 3 stages. The feed contains 35 wt% protein, 27.1 wt% carbs, 9.4 wt% fiber and ash, 10.5 wt% moisture, and 18.0 wt% oil…
A feed stream containing 2.00 mol/min of butane (C4H10), and a feed stream conta
A feed stream containing 2.00 mol/min of butane (C4H10), and a feed stream containing 130.0 mol/min of air are fed into a reactor. The butane reacts completely according to the fo…
A feed stream in an oil refinery contains 27 wt.% pentane (C5H12) and 40 wt.% he
A feed stream in an oil refinery contains 27 wt.% pentane (C5H12) and 40 wt.% hexane (C6H14), with the remainder being heptane (C7H16). This is fed to a distillation column which …
A fellow student and I are writing a paper on functional programming for a progr
A fellow student and I are writing a paper on functional programming for a programming languages course, part of which will be comparing and contrasting Lisp (Scheme), ML (SML), a…
A female drinks 3 bottles of beer (12 oz. each. 5% ABV) over a period of 2 h the
A female drinks 3 bottles of beer (12 oz. each. 5% ABV) over a period of 2 h then consumes a shot of liquor (1.5 oz, 40% ABV). Estimate the peak blood alcohol concentration in w/v…
A fermentation tank is initially filled with 0.8 L of broth containing glucose a
A fermentation tank is initially filled with 0.8 L of broth containing glucose at a concentration of 100g/L, as well as some antibiotic-producing cells. At time t=0, additional br…
A fertilizer contains 12.5 % ammonium nitrate. 20.3 % ammonium sulfate and 11.4%
A fertilizer contains 12.5 % ammonium nitrate. 20.3 % ammonium sulfate and 11.4% urea [CO(NH_2)_2] by mass. How many grams of Nitrogen are present in 1.00 kg bag of this fertilize…
A fertilizer manufacturer uses the reaction between hydrogen and nitrogen to cre
A fertilizer manufacturer uses the reaction between hydrogen and nitrogen to create ammonia (assume no other reactants or products). If 9.5x10^3 moles of hydrogen and 1.7 x 10^3 m…
A fertilizer manufacturer uses the reaction between hydrogen and nitrogen to cre
A fertilizer manufacturer uses the reaction between hydrogen and nitrogen to create ammonia (assume no other reactants or products). If 9.5x10^3 moles of hydrogen and 1.7 x 10^3 m…
A few basic gas chromatography questions: In general, how would you determine wh
A few basic gas chromatography questions: In general, how would you determine which of several peaks in a chromatogram obtained for a mouthwash sample might correspond to ethanol?…
A few days ago I was searching YouTube and I noticed an \"outlier\" video poped
A few days ago I was searching YouTube and I noticed an "outlier" video poped up in the suggestions list. This video had nothing to do with the topic being searched, but instead i…
A few days ago this appeared on HN http://www.patrickcraig.co.uk/other/compressi
A few days ago this appeared on HN http://www.patrickcraig.co.uk/other/compression.htm. This refers to a challenge from 2001 - where someone was offering a prize of $5000 for any …
A few days ago, I appeared in an interview in a software company for .net develo
A few days ago, I appeared in an interview in a software company for .net developer. There I was asked the following question: If we close browser window without getting logout, w…
A few different types of electromagnetic radiation are listed in the table below
A few different types of electromagnetic radiation are listed in the table below. Complete the table by ordering these types of radiation by increasing frequency, wavelength, and …
A few different types of electromagnetic radiation are listed in the table below
A few different types of electromagnetic radiation are listed in the table below. Complete the table by ordering these types of radiation by increasing frequency wavelength, and e…
A few hours ago I was helping a family member pay for something on a government
A few hours ago I was helping a family member pay for something on a government website with one of his credit cards, but for whatever reason it didn't go through, so we used anot…
A few months ago, we started developing an app to control an in-house developed
A few months ago, we started developing an app to control an in-house developed test equipment and record a set of measurements. It should have a simple UI, and would likely requi…
A few questions from a quiz that I need help answering: 1. #include u
A few questions from a quiz that I need help answering: 1. #include <iostream> using namespace std; void decToBin(int num, int base); int main() { int decimalNum; in…
A few questions from my pre lab, not sure what they\'re asking for? 1) A student
A few questions from my pre lab, not sure what they're asking for? 1) A student prepares 4 working standard solutions from the stock solution provided by the instructor in order t…
A few solution/concentration/dilution questions. Please solve :) 1.You have a pr
A few solution/concentration/dilution questions. Please solve :) 1.You have a protein sample that has a concentration of 0.75 mg/ml. You need to load 10 micrograms of this sample …
A few years ago, MapReduce was hailed as revolution of distributed programming.
A few years ago, MapReduce was hailed as revolution of distributed programming. There have also been critics but by and large there was an enthusiastic hype. It even got patented!…
A fictional company has been producing propene oxide, C3H6O, from propene, C3H6,
A fictional company has been producing propene oxide, C3H6O, from propene, C3H6, with a 96.0% yield. The process requires the use of a compound called m-chloroperoxybenzoic acid, …
A fictional company has been producing propene oxide, C3H6O, from propene, C3H6,
A fictional company has been producing propene oxide, C3H6O, from propene, C3H6, with a 96.0%yield. The process requires the use of a compound called m-chloroperoxybenzoic acid, C…
A fictional company has been producing propene oxide, C3H6O, from propene, C3H6,
A fictional company has been producing propene oxide, C3H6O, from propene, C3H6, with a 96.0%yield. The process requires the use of a compound called m-chloroperoxybenzoic acid, C…
A fictional company has been producing propene oxide, C3H6O, from propene, C3H6,
A fictional company has been producing propene oxide, C3H6O, from propene, C3H6, with a 96.0%yield. The process requires the use of a compound called m-chloroperoxybenzoic acid, C…
A fictional company has been producing propene oxide, compound called m-chlorope
A fictional company has been producing propene oxide, compound called m-chloroperoxybenzoic acid, CH dichloromethane, CH2 Cl2 O3 Cl, which can be abbreviated as mCPBA. The entire …
A fictional cubed-shaped bacterium, Bacterius cubis, occupies a volume of 2.1 fe
A fictional cubed-shaped bacterium, Bacterius cubis, occupies a volume of 2.1 femtoliters. This particular type of bacteria is known to communicate with its own species by secreti…
A fictional cubed-shaped bacterium, Bacterius cubis, occupies a volume of 2.1 fe
A fictional cubed-shaped bacterium, Bacterius cubis, occupies a volume of 2.1 femtoliters. This particular type of bacteria is known to communicate with its own species by secreti…
A fictional cubed-shaped bacterium, Bacterius cubis, occupies a volume of 2.3 fe
A fictional cubed-shaped bacterium, Bacterius cubis, occupies a volume of 2.3 femtoliters. This particular type of bacteria is known to communicate with its own species by secreti…
A file filter reads an input file, transforms it in some way, and writes the res
A file filter reads an input file, transforms it in some way, and writes the results to an output file. Write a file filter class that defines a function for transforming a charac…
A file has r = 20,000 STUDENT records of fixed-length. Each record has the follo
A file has r = 20,000 STUDENT records of fixed-length. Each record has the following fields: NAME (30 bytes) , SSN (9 bytes) , ADDRESS (40 bytes) , PHONE (9 bytes) , BIRTHDATE (8 …
A file is to be shared among different processes, each of which has a unique num
A file is to be shared among different processes, each of which has a unique number. The file can be accessed simultaneously by several processes, subject to the following constra…
A file is to be shared among different processes, each of which has a unique num
A file is to be shared among different processes, each of which has a unique number. The file can be accessed simultaneously by several processes, subject to the following constra…
A film of water n2 = 1.33 below a thick glass plate n1= 1.65 are illuminated fro
A film of water n2 = 1.33 below a thick glass plate n1= 1.65 are illuminated from above by light wavelength 470 nm at normal incidence. Below water is oil n3 = 1.20 Find minimum t…
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