How do I calculate the limiting reagent and percent yield for creating.docx

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How do I calculate the limiting reagent and percent yield for creating tetraphenylcyclopentadienone in the lab from by aldol condensation. I Benzil (0.15 g) reacted with 1,3- Diphenylacetone (0.15 g). Later, 1..2 ml of ethanol and 15 drops of 2.0 M KOH was added to the mix. Molar mass of benzil = 210. 23 Molar mass of 1,3 Diphenylacetone = 210. 28 Molar mass of product = 382.5 I ended up with 0.30 g of product. How do I calculate the limiting reactant and the % yield? I attempted the problem and got more than 100% so, I must have calculated something wrong. Solution Limiting reagent could be either Benzil or 1,3-diphenyl acetone, because they were reacted in equal equivalents and both of the must be completed according to the reaction kinetics (0.714 mmol and 0.714 mmol each). Thearetical yeild should be 0.272 g. you have got more than this! This seems the human Error!! You might not measured well either of the reagents or products. Good luck next time. .

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How do I calculate the limiting reagent and percent yield for creating.docx

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How can other countries respond to international piracy? Solution a.) Strengthening the maritime security is important to protect the shipping and humanitarian assistance.Gunboats alone won\'t be sufficient.As the pirates can\'t be forced to walk down a plank since there is a legal vacuum to be filled. b.) The suspects should be held for court trials in the country that they come from or in the country where the seized ship comes from. c.) Else they should be held for trials in the country whose ships seized them.Or the other option is to send them for trials in the region where thry have been arrested by the local police. d.) International countries can now think of using the latest technologies to catch these pirates and to put an end to piracy. e.) Though this is not na easy task,the pirates have their vulnerabilities which need to be identified and the international governments should make use of this as their advantage and exploit them. .

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How do I block a certain range of IP addresses in a CENTOS server from the command line for Apache users? Solution How do I block a certain range of IP addresses in a CENTOS server from the command line for Apache users?:- By using iptables you can block particular IP address or a range of IP addresses on your server to protect your server. In this way you can block IPs which are in listed on your secure log for unnecessary login attempts or something like that. Thatâ€™s why, simply you can secure your server from unwanted connections. To block an IP address from server, you need to add blocking rules to your iptables INPUT chain. The important iptables switches required to perform this actions are; How do I block an IP address on CENTOS server ? You can simply block by using the above mentioned switches. See the below pasted examples; Syntax: Example: Where xx.xx.xx.xx is the IP address which you want to block. Then save the newly added rules to iptables. How can I block a particular PORT for a particular IP on your CENTOS Linux server ? Yes, in some situations we have to block some ports to a particular IP address. We can simply manage this from command-line using the iptables command. Additional switches required; Syntax: Example: Where port 25 will be blocke for that particular IP address. .

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How can we reduce software requirement errors ? Solution If we want to reduce the error firstly we have to identify the error for improve the quality of software. Finding and fixing a software problem after delivery is often 100 times more expansive than finding and fixing it during requirement phase. Requirement errors can be categorized into two main types: specification generation errors and unwanted/unnecessary/incorrect user functionality. We are using two step methodology for reduce the requirement errors. Step 1: Operational demonstration for user requirement Involves user during early phases, as opposed to the later phases or after system delivery Eliminate unnecessary and incorrect functionalities Find how much risk on that phase and manage that risk (risk management) Step 2: Software inspection conducted on requirement specification Ensure user and developer requirements are accurately specified Detect errors associated with all phases regarding development Reduce software development cost by detecting errors early .

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How do arrays compare with variables and how do they differ? Give a simple example (Programming Logic and Design) Solution Arrays : Array is a homogeneous (same kind of elements) collection of elements in memory in a contagious locations. The first element of array is stored at index =0 and last element is stored at index=size-1. For example, int marks [5] ={10,20,30,40,50}; 10 20 30 40 50 Variable : The variable is a name given to memory location in a computer memory. The element is stored in that memory location can be pointed by the variable name. For example, int id=10; Where id is a name given to the memory location where the value 10 is stored. Comparison of array elements with variables : Since arrays are stored index based, the elements are compared using index location of the element in an array. int min=50; for(int i=0;i<5;i++) //comparison of array element with variable, min if(marks[index]==min) //code follows .

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How are standing waves similar to beats and how are they different? Typing only, no handwriting Solution Standing waves and beats are similar in many aspects both have same amplitude .but in standing waves frequencies of both waves are same but in beats two waves have nearly equal frequencies not exactly same. Standing waves propagate in same direction. But in stationary waves propagate in different direction. Standing wavea also known as stationary waves. When two sets of progressive waves trains of the same type (i.e. both longitudinal or both transverse) having the same amplitude and same time period/ frequency/ wavelength travelling with same speed along the same straight line in opposite directions superimpose, a new set of waves are formed. These are called stationary waves or standing waves. When two sound waves of equal amplitude and nearly equal frequencies travelling in a medium along the same direction superimpose on each other, the intensity of the resultant sound at a particular position rises and falls alternately with time. The phenomenon of alternate variation in the intensity of sound with time at a particular position, when two sound waves of newly equal frequencies and amplitudes travelling in the same direction superimpose on each other. .

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How are corporate abuse of power corporate fraud, and corporate economic exploitation interrelated? Which segments of society seem to bear the largest burden from these forms of corporate crime, and which segments seem least vulnerable? Which of these forms of corporate crime concern you most, and which concern you least, and why? Solution Nader Proposes Crackdown on Corporate Crime, Fraud and Abuse The US needs to crackdown on corporate crime, fraud and abuse that have in the last four years looted and drained trillions of dollars from workers, investors, pension holders and consumers. Among the reforms needed are resources to prosecute and convict the corporate executive crooks and to democratize corporate governance so shareholders have real power; pay back ill-gotten gains; rein in executive pay; and enact corporate sunshine laws, among others. Below are twelve initial steps for an effective crackdown on corporate crime, fraud and abuse. The Nader campaign will return to this issue and expand the discussion on the solution to corporate crime and abuse. Twelve Steps to an Effective Crackdown on Corporate Crime While Smith wrote the earlier piece in 1994, it is applicable today as well, with wave of news about .

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Hi, Can you answer this question. Please show all your work and show important comment sections ( Please comment what the codes of lines do!!). Please avoid command fucntions like nargin function command. Code w/ MATLab 2015a or higher. I know hw to do the math but failed toomany times at coding. THank you again!!! =) Write a function file for the bisection method to find the roots of a function. Test your code on e a functionrition. Determine what cos(x) = x 5. the following function. Determine what your inputs and outputs should be. Solution The given Matlab code uses the string facility to pass the name of a function to bisection. A % indicates the comments function d = bisection(fn,a1,b1,tol) % d = bisection(\'fn\',a1,b1,tol) % % Â Â This function locates a root of the function fn on the interval %Â Â [a1,b1] to within a tolerance of tol. % Evaluating the function to the endpoints and checking if it % changes sign. Fa1 = feval(fn,a1); Fb2 = feval(fn,b1); if Fa1*Fb2 >= 0 error(\'Tis fn have opposite signs at a and b\') end % done is used to flag the unlikely event that we find % the root exactly before the interval has been sufficiently reduced. done = 0; % Bisect the interval d = (a1+b1)/2; % Main loop while abs(a1-b1) > 2*tol & ~done % Evaluate the function at the midpoint Fc1 = feval(fn,d); if Fa1*Fc1 < 0Â Â Â Â Â Â % The root is left of d b1 = d; Fb1 = Fc1; d = (a1+b1)/2; elseif Fc1*Fb1 < 0Â Â % The root is right of d a1 = d; Fa1 = Fc1; d = (a1+b1)/2; elseÂ Â Â Â Â Â Â Â Â Â Â Â Â Â % the root done = 1; end end the file is named as bisect.m, it can be run as follows: .

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Hi! I think the answer is C Outsource the software. I juyst wanted to have some opinion from the experts. Thanks! If your software runs on an IBM mainframe, and you want to adapt it for Windows desktop PCs, you must _____ the software. A. filter B. port C. outsource D. crowdsource Files can be retrieved from a dump backup by using gunzip. True or False I think the answer is FALSE Solution A filter is a computer program or subroutine to process a stream, producing another stream A port is an endpoint of communication in an operating system Movement of software from one platform to another is called outsourcing(This is a common word in terms of business process ) . So answer is C (Outsourcing) gunzip takes a list of files on its command line and replaces each file whose name ends with .gz, -gz, .z, -z, _z or .Z.So answer is false . .

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Hi all! someone help me pls Fraud examination I need to write an essay with five paragraphs Chapter 5, Case 9 Sally was aware of a fraud being committed by one of her coworkers, but she never reported it. What are some possible reasons for her hesitancy to come forward? Solution Fraud is an act of unlawful gain without hurting physically to others. This is a secret act of stealing benefits. Fraud was noticed but not reported due to the following reasons: Self-centered : The person might be self-centered. She might have no interest of seeing other things apart from her duty. Unaware of consequence : The person might have no knowledge of consequence of fraud. Fraud not only creates loss of wealth, but it is also the loss of net income on regular basis. She might be unaware of such loss. Threat of life : The person might have belief that if the fraud is reported, her life would be in danger. In that case she will not report it. Corruption all rounds : If everybody is corrupted, reporting would be useless. Therefore, she may be reluctant to do reporting. Well-known coworker : If the coworker is well-known, the person might be manipulated not to disclose the fraud. .

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Herbie Corp\'s Balance Sheet showed the following at 12/31/13 Common Stock, $10 par $100,000 APIC $50,000 Retained Earnings $20,000 A cash dividend is declared on 12/31/13, and is payable on 1/20/14 to shareholders of record as of 1/10/14. Show all appropriate journal entires assuming a cash dividend of $1 per share Show all appropriate entries for a $5 per share dividend Solution 1. Journal entry to record dividend of $1 per share. No. of shares is 10,000 ($100,000/$10) 31-12-2013 - Entry for dividend declaration will be recorded Retained earnings (10,000X1) Debit 10,000 To Dividend payable Credit 10,000 20-1-2014, Entry to record dividend payment. There will be no entry on 10-1-2014 i.e. the record date. As record date merely determines the names of the stakeholders that will receive dividend. Dividend payable Debit 10,000 To Cash Credit 10,000 2. Cash dividend of $5 per share. Retained earnings can be used for dividend payments. APIC cannot be used because the Company cannot declare dividends more than retained earnings. In this case, Retained earnings balance will be negative. 31-12-14 Retained earnings Debit 50,000 To Dividend payable Credit 50,000 20-1-14 Dividend payable Debit 50,000 To cash Credit 50,000 .

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Here is a list of the main characters in Shakespeare\'s Romeo and Juliet. The first seven characters are male and the last four are female. Escalus, prince of Verona Paris, kinsman to the prince Romeo, of Montague Household Mercutio, friend of Romeo Benvolio, friend of Romeo Tybalt, nephew to Lady Capulet Friar Lawrence, a Franciscan Lady Montague, of Montague Household Lady Capulet, of Capulet Household Juliet, of Capulet Household Juliet\'s Nurse A total of 13 male and 7 female actors are available to play these roles. How many possible casts are there? (All roles are to be played by actors of the same gender as the character.) I have worked this out multiple times and just can\'t get it right...please help. I would like the solution as well as how you came to it if possible. Solution We need to combine a choice of 7 out of 13 possible male actors with a choice of 4 out of 7 possible female actors. 13C7 * 7C4 = [13! / (7! 6!)] * [7! / (4! 4!)] = [13*12*11*10*9*8 / (6*5*4*3*2*1)] * [7*6*5 / (4*3*2*1)] = 1716 * 8.75 = 15015 possible casts. .

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1. How many ATOMS of sulfur are present in 2.25 moles of sulfur trioxide ? ____ atoms of sulfur. 2. How many MOLES of oxygen are present in 1.01Ã—1023 molecules of sulfur trioxide ? ___moles of oxygen. Solution Ans. #1. 1 mol SO 3 consists of 1 S-atoms. So, moles of S in SO 3 = 2.25 mol Now, Number of S-atoms = Moles of S x N A = 2.25 mol x (6.022 x 10 23 atoms/ mol) = 1.355 x 10 24 atoms #2. Moles of SO 3 = Number of SO 3 molecules / N A = 1.01 x 10 23 molecule / (6.022 x 10 23 molecules / mol) = 0.1677 mol # 1 SO 3 molecule consists of 3 O-atoms. So, Moles of O = 3 x Moles of SO 3 = 3 x 0.1677 mol = 0.5032 mol .

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