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O. Chemistry (Nucleophilic Substitution)

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Chemistry
Name the organic product of the following nucleophilic substitution reaction. OH+CH3CH2I

Chemistry
Name the organic product of the following nucleophilic substitution reaction OH-+CH3I

Chemistry Help - Check Please
1) Describe 4 processes/forces that can explain all mechanism in Organic Chemistry? My answers: a) Electron Delocalization b) Hydrogen Bonding c) Aromacity d) Nucleophilic Substitution (SN1 & SN2) Thank you!

organic chemistry
a careless organic chemistry student was performing "competing nucleophiles in nucleophilic substitution reactions" experiment , and left his container of tert-butyl chloride and tert-butyl bromide open to the air for several hours. what happened to the composition of the ...

Chemistry
In the experiment of Nucleophilic substitution reactions: Competing Nucleophiles 1)what would happen if all the solids in the nucleophile medium were not dissolved? How might this affect the outcome of the experiment? 2)Explain the order of elution you observed while ...

O. Chemistry (Nucleophilic Substitution)
1. Explain why the reagent NaI in acetone encourages SN2 reactions. Provide another nucleophile/solvent combination that encourages SN2. What characteristics will each have? 2. Write the complete mechanism for the reaction of (3S, 4R) 3-bromo-3,4-dimethylhexane with methanol. ...

Chemistry
I need help distinguishing between nucleophiles and electrophiles. Like one of the examples I am given shows methanal, chloroethane, and methanamine. Now it says methanal is electrophilic because the carbonyl group is polar since the more electronegative oxygen atom has a ...

Organic Chemistry
3. Compare Sn1 and Sn2 reactivities of alkyl halides with regard to a)stereochemical outcomes b)an increase in the nucleophilic concetration c)an increase in alkly halide concentration d)an increase in the polarity of the solvent e)rearrangements

Calculus 2
Evalute the integral of x/(x^2+4)dx using u-substitution and then trigonometric substitution. I did this and got (1/2)ln(x^2+4)+C using u-substitution and x^2+4+C using trigonometric substitution. What did I do wrong??? thank you for helping!

Trigonometric Substitution
Trigonometric Substitution a. Explain why the substitution x = asin(Theta) guarantees that cos(Theta) is greater than or equal to 0 . b. What sort of restriction must we put on x and a so that the substitution x = asec(Theta)will guarantee that tan(Theta) is greater than or ...

Chemistry
I was wondering if anyone could describe a general Friedel-Crafts alkylation to me. I understand that it involves the substitution of an aromatic ring with an alkyl group using a strong Lewis acid catalyst. But, what types of activating groups are present on the ring? What's ...

chemistry
What will be the fastest reaction if a strong base, such as sodamide, reacts with a secondary alcohol, such as (2S)-butanol? a) deprotonation of the alcohol b) substitution with racemization of stereochemistry c) elimination to form the more substituted alkene d) substitution ...

organic chemistry
How can gas chromatography determine what mechanism a reaction underwent? For example, I was to synthesize an alkyl halide using 1-propanol, NaBr, and sulfuric acid. I know its a substitution reaction, but how can gas chromatography tell me whether its SN1 or SN2 substitution?

nucleophilicity
the more basic the the more nucleophilic?

calculus
Integrate x/(x^2 + 4) dx via trig substitution and by u=x^2+4 substitution. Show that results are equal. Via trig substitution of x=2 *tan t, I get: 1/2 * tan^-1 (x/2) + c Via u = (x^2 + 4) substitution, I get: 1/2 * ln |x^2 + 4| + c How are these equal?

ochem
bromide is a better nucleophile toward the intermediate bromonium ion than ethanol. what product would be obtained if ethanol did carry out this nucleophilic attack?

Mathematics
Find using substitution: ∫ 1/[x(1+lnx)^2] dx I'm not sure what substitution to use.

calculus
We're doing indefinite integrals using the substitution rule right now in class. The problem: (integral of) (e^6x)csc(e^6x)cot(e^6x)dx I am calling 'u' my substitution variable. I feel like I've tried every possible substitution, but I still haven't found the right one. The ...

calculus
Evaluate the following integrals using the given substitutions. (a) (3x^2 + 10x)dx/(x^3 + 5x^2 + 18 , substitution u = x3 + 5x2 + 18; (b)(14x + 4)cos(7x^2 + 4x)dx,substitution u = 7x^2 + 4x.

Algebra II
Use synthetic substitution to find f(-3) for f(x) = 2x^3 - 6x^2 - 5x + 7. _3|2 -6 -5 7 6 36 93 ______________ 2 0 31|100 then I used direct substitution and just plugged -3 in for x and the final answer is f(-3) = 86

Calculus
Find the integral from 0 to 2 of xsqrt(5-sqrt4-x^2)). The hint said to use substitution of u=sqrt(4-x^2), and that I needed one more substitution, but I don't know how to do it.

algebra
i need help with these problems (either a solution or how to plug them into a graphing calculator): 1) Solve by substitution or elimination 4/x + 1/y + 2/z = 4 2/x + 3/y - 1/z = 1 1/x + 1/y + 1/z = 4 2)Solve the system of equations by substitution. x^2 + y^2 = 25 x - y = 7 3) ...

chemistry
carboxylic acid plus alcohol yields ester plus water. It is an organic substitution reaction wot type of reaction is this CH3CO2H + C6H5CH2OH---------------> CH3COOCH2C6H5 + water is it like a substitution or like an addition or wot?

Geometry
Substitution Property of Equality: If a=20, then 5a= _____. The substitution rule states that If a=b then a can be substituted for b in any equation or expression. So I think that 5a=5b but the number answer is 100. Am I correct?

Math
17) solve this linear system using the method of substitution. 2y-x=-10 y= -3/2x-1 20) simplify then solve by substitution 2(x-4)+y=6 3x-2(y-3)=13 just need help with these 2.

backwards substitution
15x \equiv 20 (mod 88) 13=88-5*15 2=15-1*13 1=13-2*6 GCF is 1. Im trying to use backwards substitution and so far have 1=13-2*(15-1*13) but I dont understand what to do next, can anyone help?

Calculus/Substitution
The integral from 1 to 2 of x*the square root of (x-1) dx. Using the substitution method, I said that u = x-1, du = 1 dx, and dx = du. I'm not sure how to plug u back into the equation since I still have that first x. Suggestions are greatly appreciated.

math
int 1/ (sq rt (4sec^2 x +4)) dx trigonometric substitution expression: sq rt (x^2-a^2) substitution: x=a sec x identity: sec^2 x -1=tan^2 x

algebra
use the Substitution Method. Please give it a try. y = 3x + 4 5x + 3y = 12 Why is the substitution method preferred in this case?

Algerbra 1 substitution method
im really confused about this question: 2x-3y=21 y=3-x using substitution method. please help

substitution
solve by the substitution method 3x+5y=21 x=51-9y

substitution
solve by the substitution method 3x+5y=21 x=51-9y

Organic Chemistry!
Hi, I'm just really confused about how to explain the electrophilic and nucleophilic reactions. For instance, if you have an alkene and bromine molecules, they undergo electrophilic addition, because the alkene has an electron rich pi bond. But do you explain the reaction by ...

math
solve each system of equations by substitution. y=3x-9 please help explain how to solve this using substitution.

Algebra
Solve: 3x-2y=10 2x+3y=-2 Graph: Substitution: Elimination: Show Your work! (I can'tfigure out how to graph it and when i used substitution and elimination it came out with two different anwsers. I got (13/3.5,19/10.5) for substitution, and ((0.2,-0.8) for Elimination.I need ...

calculus
Decide on what substitution to use, and then evaluate the given integral using a substitution. HINT [See Example 1.] (Round your decimal coefficients to four decimal places.) x/(2x^2-1)^0.4 dx

Chemistry
Why does the reaction of 2-bromo-2-methylbutane and ethanolic solution of silver nitrate interfered by the presence of water in the sodium iodide in acetone reagent? (Substitution chemistry) Thanks for any help!!

Calculus
Obtain the MacLaurin series for 1/(2-x) by making an appropriate substitution into the MacLaurin series for 1/(1-x). ------------ The MacLaurin series for 1/(1-x) = Σ x^k I substitue (x-1) in for x, because 1/(2-x) = 1/(1-(x-1)) Making the same substitution in the ...

Brief Calculus
Decide on what substitution to use, and then evaluate the given integral using a substitution. HINT [See Example 1.] (Round your decimal coefficients to four decimal places.) x/(2x^2 − 1)^0.4 dx

Math
1. Explain the advantages and disadvantages of both the substitution method and the elimination method for solving a system. Help please. The only reasons I can think of is because in substitution it might be more difficult cause there's a possibility of working with fractions.

Algebraic Systems
Okay i just wanna know what you think is the easiest between substitution and elimination/combination. I hate elimaination becuase i get confused quicker with this when actually solving it than in substitution, but it's actually easier for me. Still, substitution is what i ...

chemistry (Organic)
According to the two reactions below; 1-chloro-2,2-dimethylbatune + (warm NaOH 3)) 1-chloro-2-methylpropane + (cold dil.NaOH) 1) identify whether the reactions are Nucleophilic Substitutions (SN) or Elimination (E) reaction. 2) Complete the reaction mechanismin each and name ...

calculus -- PLEASE HELP!
Suppose you are trying to evaluate the intergral 2x^3dx and you make the substitution u=x^2. The substitution takes one area and converts it to a different one-in this case a trapezoid with vertical sides. Denote by R the region under the first curve from 3 to 3.01 and ...

calculus-integration!
should i use substitution?? if yes how should should i use it? plz i need some directions? k plz someone?...so far i used trig. substitution. i got a=8, so i used x=asin(è)so according to this substitution i got x=8sin(è) and dx=8cos(è) dè...then i used used the plug them ...

substitution method
Solve by substitution method please help me solve this. I do not know how to do this at all. The question is 3x+8y=33 and x=31-6y I know that I have to plug x into the first x like 3(31-6y)+ 8y = 33 but i do not know what to do from there.

Chemistry
Using benzene as an example to illustrate substitution reaction

math substitution method
use the substitution method to solve 7x+5y=-26 x=28-6y

math/ elimination& substitution
how do i solve this? using elimination or substitution? 2x-3y=-1/12 y=-x+7/12

calculus
Help with an integration question with the substitution given? Please help, i tried to to answer it but the working is too complicated can anyone help out there, the question says: Using substitution 5x=4cosØ to show ∫ √ (16-25x^2) dx = 4 π + 6√ 3 / 15

Math
Calculate the integrals by partial fractions and using the indicated substitution. Show the results you get are the same. dx/1-x^2; substitution x= sin pheta I understand how to do the partial fraction part, but not the second part and I don't know how they are similar. Any ...

O.Chem
Only a substitution product is obtained when the compound 1-bromo-2,6-dimethylcyclohexane is treated with sodium methoxide. Draw the substitution product and explain why an elimination product is not obtained.

CHEMISTRY
What is the effect of cyclohexane as the solvent in the electrophilic aromatic substitution of acetanilide by bromine?

college organic chemistry
Give the product of the substitution reactions. (CH3)2CHOSO3CH3 -> ?

Algebra 1
bobpursey, In this problem you helped me with earlier: Solve using any appropriate method. y = 2× - 5, y = ½× + 1 Substitution, substitute for y. 2×-5=½ × + 1 3/2 x=6 x=4 y= 2*4-5=3 How did you choose which method you were going to use between substitution and ...

algebra 1
I was just wondering if anybody could explain to me the steps in 'solving systems in substitution' and 'solving systems in substitution with a variable'. I'm majorly confuzled!!!! It might help to post a specific problem so someone can show you the steps.

Calculus
Let f(x)=cosxsqrt(1+sinx). A. Let F(x)=the integral of f(x)dx and F(0)=5/3, find F(pi/2). I got 3.386 with U-substitution B. If G(x)=the integral of f(x)sinxdx and G(0)=1/3, find G(x). I got a reply to this but I did not understand the explanation. How would I solve this with ...

Question on Integration
(i) Evaluate integral [ x^3 / (x^2 + 4)^2 ] using trigonometric substitution. (ii) Evaluate integral [ x^3 / (x^2 + 4)^2 ] using regular substitution. (iii) Use a right triangle to check that indeed both answers you obtained in parts (i) and (ii) are the same. Thanks!

chemistry
discuss evidence to support the proposal that substitution in square planar complexes is an associative process

Organic chemistry
Draw major product of substitution reaction of (2R,3S)2-bromo-3-methylpentane with CH3CH2O- nucleophile?

chemistry urgent
Draw major product of substitution reaction of (2R,3S)2-bromo-3-methylpentane with CH3CH2O- nucleophile

geometry
ughh i need help i dnt like proofs we'll here it the instructions write a two column proof the segment addition postulate is useful for this proof also. remember that the transitive && substitution properties are common in proofs this one requires substitution.. given is rs=xy...

Substitution Method-Plz help
Use the Substitution method to solve the system of equations. x + y = -4 x - y = 2 solve for x in the second equation. x= y+2 Put that in for x in the first equation: x+y=-4 (y+2) + y = -4 solve for y. Then, x= y+2 i don't get it.How did you get that?What does x equal? re read...

Algebra II
For the following, I believe I have the correct answers: 3 * 6 - 3 * 4 = 18 - 12 Substitution Property because you are substituting 18 for 3 * 6 If s = 3, then s * 2 = 3 * 2 Substitution Property because you are substituting 3 for the s Did I name the correct properties? Thank...

Alg-Substitution (check plz)
k well i had to use substitution to find the point of intersection for these 2 equations x-y=10 3x+y=11 i chose to substitute y in the first equation my final answer was (-1/2 , 5) can someone clarify this, and if it's wrong, where'd i make a mistake? In the first equation, y...

Chemistry: Organic Chemistry
Optically pure 2-octyl sulfonate, a compound with a leaving group comparable to the tosylate and mesylate groups discussed in this chapter, was treated with varying mixtures of dioxane and water as solvent. The optical purity of the resulting 2-octyl alcohol, a solvolysis ...

Math
(i) Evaluate integral [ x^3 / (x^2 + 4)^2 ] using trigonometric substitution. (ii) Evaluate integral [ x^3 / (x^2 + 4)^2 ] using regular substitution. (iii) Use a right triangle to check that indeed both answers you obtained in parts (i) and (ii) are the same. I would really ...

substitution method
solve using the substitution method 8x -9y= -95 5x+64=y The solution is (___,___)

substitution method
solve using the substitution method 6x+2y=-14 -5x+y=25 The solution is (___,___)

substitution method
solve using the substitution method 8x+6y=8 -9x+y=22 The solution is (___,___)

Linear Equations
Can you please help solve this equation using the substitution method? I have tried and keep getting that X and Y = 7/2, but the answer in the book states no solution, inconsistent system. What am I doing wrong? Please help! Solve the systems of equations by the substitution ...

Microeconomics
1. The utility function is given by: U=x+y and the budget line is x+2y=100. Then the price of good x goes up to 4. Find the Hicksian substitution effect, income effect, and total change in demand for good x from the change --- Ok i read the theory but i cant solve the problem ...

calculus
Assuming that: Definite Integral of e^(-x^2) dx over [0,infinity] = sqrt(pi)/2 Solve for Definite Integral of e^(-ax^2) dx over [-infinity,infinity] I don't know how to approach the new "a" term. I can't use u-substitution, integration by parts, partial fractions, or trig ...

Chemistry
The substitution of a monosubstituted benzene is regioselective. If it had been completely random, what would you expect the ortho:meta:para product ratio be? And why?

Math
12x+4y= 22 and 3x-8y= -10 What are the coordinates of x and y? Use the Substitution Method. ---and--- -5x+7y= -41 and 7x+y=25 What are the coordinates of x and y? Use the Substitution Method. Please help!!! =DDD

Chemistry
2.) Part A.2. Suppose 6 M HCl is substituted for the 3 M HCl in the procedure. What would be the consequence of this substitution?

Chemistry
List 4 different ways in which the function of hemoglobin could be changed by a single amino acid substitution. i have no sweet clue... the question is very vague

Algebra - solving linear equations w/ substitution
The question in the book reads: "Suppose you try to solve a system of linear equations using substitution and get this result. How many solutions does each system have?" 1)x=-2 2)y=12 3)6=x 4)-8=-8 5)7=y 6)5=3 I understand #3 and #6, but I do not understand how to know how ...

Substitution Method
Use the Substitution method to solve the system of equations. x + y = -4 x - y = 2 x + y = -4 x - y = 2 In the second equation, x= y+2 Putting that in the first.. (y+2) + y= -4 subtract two from each side, then divide each side by two to get y. Then, put that value of y into ...

substitution method
solve by the substitution method 2m+n=9 m-6n=50 the solution is (___,___)

MATH
Useing substitution/elimination method what is the solution set to 2x+y=1 x^2=y+2 a)(-3,7) and (1,-1) b)(3,7) and (-1,-1) c)(-3,-7) and (1,1) d)(3,-7) and (-1,1) I've really no educated guess so PLEASE HELP! You can make an educated guess by substituting the various (x,y) ...

Geometry HELP!!
I need help with my geometry hw, i need to now wat the properties are for the following statements. 1. If 2x=6, then x=3 2. If 42 degrees + measure of angle 2 = 90 degrees, then measure of angle 2 = 48 degrees 3. If measure of angle D = 40 degrees and measure of E = 90 degrees...

organic chemistry
Ferrocene cannot be nitrated using the conventional HNO3-H2SO4 mixed acid conditions, even through nitration is an electrophilic aromatic substitution reaction. EXplain.

chemistry
I'm working on substitution organic chemistry problems and I just had a question. There's an equation in which a molecule is treated with methanol in an acetone solution. Would the reaction be SN1 or SN2? I thought that it was SN2 because of the aprotic acetone, but the answer...

Economic
A Giffin good is not correctly described by which of the following? A)A Giffin good must be an inferior good. B)A Giffin good must be such that the income effect and the substitution effect move in opposite directions, and the income effect outweighs the substitution effect. C...

Math-Algebra
Solve: 3x-2y=10 2x+3y=-2 Graph: Substitution: Elimination: Show Your work! (I can'tfigure out how to graph it and when i used substitution and elimination it came out with two different anwsers. I need help! and i need to be able to show my work!)

ECON
PLEASE CHECK AND CORRECT MY ANSWERS!!!! MRTS = marginal rate of technical substitution RTS = returns to scale MP = marginal product Suppose the production function is Cobb-Douglas and f(x1, x2) = [x1^(1/2)][x2^(3/2)]. (Note: x1 and x2 are variables). a) Select an expression ...

Mathematics
Use substitution to solve: sec^2x/(tan^2x -1) dx What substitution should I use (what should I let 'u' equal)? I've tried using substitutions for tan or sec, i.e. tan^2x +1 = sec^2x , but I can't get the answer.

algebra 1
3) for any factorable trinomial x^2+bx+c, will the absolute value of b sometimes,always, or never be less than the absolute value of c? explain idk 4) give an example of a trinomial that can be factored using the factoring techniques presented. then factor the trinomial. idk 5...

math
Note: You can get full credit for this problem by just answering the last question correctly. The initial questions are meant as hints towards the final answer and also allow you the opportunity to get partial credit. Consider the definite integral from pi/6 to pi/2 cos(z)/...

microeconomics
Fact 1: "The substitution effect(SE) must ALWAYS be negative (i.e. goes in the opposite direction to the change in PRICE). The income effect(IE) can be either positive or negative." Fact 2: "SE and IE can go in the same direction or they can go in opposite directions...

Algebra help!
Please help and I would appreciate an explanation as to how you got to the answer. 1.) Solve the system by triangularizing the augmented matrix and using back substitution. 0.09x-0.15y+0.39 -0.18x+0.35y=-0.88 2.) Solve the system by triangularizing the augmented matrix and ...

biology
Make a single base pair substitution mutation in the gene below that results in a protein that is shorter than the protein produce by the original gene. When you are satisfied with your change and its effect, click the "Final Check" button. Note that a "single base pair ...

microeconomics
How the technical rate of substitution and marginal product are related and what is their difference? i only wrote their definitions The technical rate of substitution measures the rate which the firm has to substitute one input for another, for keeping the output stable. It ...

Algebra
I have a few questions I need help with! 1. Solve the system by triangularizing the augmented matrix and using back substitution. If the system is linearly dependent, give the solution in terms of a parameter. -3x+y-z=-4 6x-2y+2z=8 -12x+4y-4z=-16 2. Solve the system by ...

macroeconomics
(Import Substitution Versus Export Promotion) Explain why domestic producers who supply a good that competes with imports would prefer an import-substitution approach to trade policy rather than an export- promotion approach. Which policy would domestic consumers prefer and why?

Algebra help!
1.) Solve the system by triangularizing the augmented matrix and using back substitution. -x-y+z=1 x-y-4z=-7 4x+y+z=6 2.) Perform the indicated row operation, then write the new matrix. -4 4 | 4 9 -6 | 5 -2R1+ R2 ---> R2 3.) Solve the system by triangularizing the augmented...

chemistry
in dealing with alcohol mechinisms, how do you know when to do dyhydration (elimination) or substitution? is it secondary and teritary undergo both Sn1 & E1 and primary undergo Sn2 and E2. or is one mech actually preferred? it seems like H2SO4 is always dehydration.

Algebra help needed please!!
I have a few questions I need help with! 1. Solve the system by triangularizing the augmented matrix and using back substitution. If the system is linearly dependent, give the solution in terms of a parameter. -3x+y-z=-4 6x-2y+2z=8 -12x+4y-4z=-16 2. Solve the system by ...

Organic Chemistry
The Diels-Alder reaction is classified as a: A. polar reaction B. radical reaction C. substitution reaction D. pericyclic reaction E. rearrangement reaction

History
The substitution of traditional imports by increasing domestic industrial production in Latin America began to fail in the 1960s because: A. they often lacked sufficient labor to allow them to compete with foreign manufacturers. B. Japan refused to buy any goods from countries...

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