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on Stre - DH Solution The strength of a nucleophile depends on how easily it can donate its lone pair of electrons (for a neutral nucleophile like H 2 O) or how easily it can give away its negative charge (for a negatively charged species like Cl - ) to a center of positive charge. In terms of electronegativity, Fis a highly electronegative atom followed by O, then comes N and then C. So it is easier for C to share its electrons followed by N then O then F. In other words the more is the basicity of a nucleophile the more is its strength as a nucleophile. All nucleophiles are lewis bases. The basicity reduces as we move from left to right in a period. The arrangement of elements in decreasing order of basicity is C>N>O>F Hence this should be the decreasing order of strength of these atoms as a nucleophile. Likewise if we compare the given options, the arrangement of these groups in increasing order of strength of nucleophile is as shown -F<-OH<-CN<-C 2 H 6 (C 2 H 6 - ethyl) .
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Solution
part a:
bohr radius of nth orbit for hydrogen is given by
r=4*pi*epsilon*(h/(2*pi))^2*n^2/(m*e^2)
where epsilon=electrical permitivity=8.85*10^(-12)
h=planck’s constant=6.626*10^(-34)
m=mass of electron=9.1*10^(-31) kg
e=magnitude of charge on electron=1.6*10^(-19) C
r=5.3090*10^(-11)*n^2
for n=5, radius =1.3272 nm
part b:
energy is given by -13.6/n^2 eV
for n=2, energy=-3.4 eV
=-5.44*10^(-19) J
part c:
energy in eV=-3.4 eV
part d:
radius for hydrogen like ions=a0*n^2/Z
where a0=5.3090*10^(-11) m
for Boron ion, Z=5
hence for n=5,radius=0.26545 nm
part e:
energy for hydrogen like ion=-13.6*Z^2/n^2
using Z=4 and n=2
energy value=-13.6*4^2/2^2=-54.4 eV
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Determine whether the bond between each of the following pairs of atom.docx
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2. Li and O
3. C and N
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Solution
Pure covalent bond- when both the participating atoms are having same electronegativity value (i.e- for homonuclear molecules) Exp - O and O
polar covalent bond- both particiapting atoms share equal number of electrons to form coavalent bond, however, the shared electron pair remains more towards the more electronegative atoms.
Exp- C and N (electronegativity of N is more than C, the share electron pair remains towards the nitrogen. carbon bears partial positive charge and nitrogen bears partial negative charge)
N and S (electronegativity of N is more than S, the share electron pair remains towards the nitrogen. sulfur bears partial positive charge and nitrogen bears partial negative charge)
Ionic bond - one atom is highly electronegative and the other atom is highly electropositive
EXp- Li and O
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Solution
part a:
bohr radius of nth orbit for hydrogen is given by
r=4*pi*epsilon*(h/(2*pi))^2*n^2/(m*e^2)
where epsilon=electrical permitivity=8.85*10^(-12)
h=planck’s constant=6.626*10^(-34)
m=mass of electron=9.1*10^(-31) kg
e=magnitude of charge on electron=1.6*10^(-19) C
r=5.3090*10^(-11)*n^2
for n=5, radius =1.3272 nm
part b:
energy is given by -13.6/n^2 eV
for n=2, energy=-3.4 eV
=-5.44*10^(-19) J
part c:
energy in eV=-3.4 eV
part d:
radius for hydrogen like ions=a0*n^2/Z
where a0=5.3090*10^(-11) m
for Boron ion, Z=5
hence for n=5,radius=0.26545 nm
part e:
energy for hydrogen like ion=-13.6*Z^2/n^2
using Z=4 and n=2
energy value=-13.6*4^2/2^2=-54.4 eV
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A concise answer would suffice- Thank you- short Videos about special.docx
A concise answer would suffice. Thank you.
short Videos about special relativity and answer the following questions suggested by the films. t. th the Michelson-Morley experiment, the motion of the earth through the ether was supposed to be detected via a change in the interference pattern produced by the interferometer when the apparatus was rotated. However, no change was observed. Why did they expect to see a change, and why was no change seen?
Solution
The basic aim of the michelson-morley experiment was to verify the existance of ether, a medium assumed to be present in our enviroment which is responsible for the propogation of light. For this two light one perpendicular to the medium and one parallel to medium were made to travel and then interfere. since both would travel different amount in the ether they would have phase difference and that would cause shift in the interference pattern. But no as such result was observed.
The main reason was there is no such thing as ether, light is a electromagnetic wave which requires no medium for its propogation. And also without ether there would be no special frame of reference against which different observer can measure the motion so it was deduced ( by Einstein) that speed of light remain constant in all inertial frame.
.
A company has purchased inventory and receives an invoice that indicat.docx
A company has purchased inventory and receives an invoice that indicates that the buyer must pay the transportation costs of delivering the merchandise. Which of the following will most likely be noted as the delivery terms?
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D. None of the above
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This document presents information about chemical bonding from the chemistry project of students Akarshik Banerjee, Pratyush Dey, and Sayantan Biswas. It discusses various types of chemical bonds including covalent bonds, which form when atoms share electron pairs, and ionic bonds, which form through complete electron transfer. It also describes concepts like the octet rule, Lewis dot structures, formal charge, resonance structures, and molecular geometry based on valence shell electron pair repulsion theory. Hybridization and molecular orbitals are explained as well. In summary, the document provides an overview of key concepts in chemical bonding from the perspective of high school chemistry students.
Similar to on Stre - DH SolutionThe strength of a nucleophile depends on how easi.docx (20)
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More from tkathryn
A concise answer would suffice- Thank you- short Videos about special.docx
A concise answer would suffice. Thank you.
short Videos about special relativity and answer the following questions suggested by the films. t. th the Michelson-Morley experiment, the motion of the earth through the ether was supposed to be detected via a change in the interference pattern produced by the interferometer when the apparatus was rotated. However, no change was observed. Why did they expect to see a change, and why was no change seen?
Solution
The basic aim of the michelson-morley experiment was to verify the existance of ether, a medium assumed to be present in our enviroment which is responsible for the propogation of light. For this two light one perpendicular to the medium and one parallel to medium were made to travel and then interfere. since both would travel different amount in the ether they would have phase difference and that would cause shift in the interference pattern. But no as such result was observed.
The main reason was there is no such thing as ether, light is a electromagnetic wave which requires no medium for its propogation. And also without ether there would be no special frame of reference against which different observer can measure the motion so it was deduced ( by Einstein) that speed of light remain constant in all inertial frame.
.
A company has purchased inventory and receives an invoice that indicat.docx
A company has purchased inventory and receives an invoice that indicates that the buyer must pay the transportation costs of delivering the merchandise. Which of the following will most likely be noted as the delivery terms?
Solution
D. None of the above
.
A company uses a weighted average perpetual inventory system- August.docx
A company uses a weighted average perpetual inventory system.
August 2: 10 units were purchased at $12 per unit.
August 18: 15 units were purchased at $15 per unit.
August 29: 20 units were sold.
August 31: 14 units were purchased at $16 per unit.
What is the per-unit value of ending inventory on August 31?
Solution
Weighted Average Cost of Stock of 25 Units:
(0.40 x 12 ) + (0.60 x 15) = $13.80
Unit Sold: 20, Unsold 5
Aug31: Total Units in Stock: 5 + 14 = 19
Weighted Average Cost = (0.2632 x 13.80) + (0.7368 x 16) = $15.42
So, the Correct Option is $15.42
.
A company reissued at $20 per share 100 shares of treasury stock that.docx
A company reissued at $20 per share 100 shares of treasury stock that it had previously acquired for $26 per share and there was not any Paid-in Capital from Treasury Stock. Prepare the journal entry.
Solution
Journal Entry
Note : There is no paid in capital from Treasury Stock therefore Loss on issue of Treasury Stock is being transfered to retained earning
.
A cockroach of mass m lies on the rim of a uniform disk of mass 5-00 m.docx
A cockroach of mass m lies on the rim of a uniform disk of mass 5.00 m that can rotate freely about its center like a merry-go-round. Initially the cockroach and disk rotate together with an angular velocity of 0.410 rad/s. Then the cockroach walks halfway to the center of the disk.
(a) What then is the angular velocity of the cockroach-disk system?
(b) What is the ratio K / K 0 of the new kinetic energy of the system to its initial kinetic energy?
Solution
let
m1 = m
m2 = 5*m
wi = 0.41 rad/s
let R is the radius of the disk
a) Apply conservation of angular momentum = initial angular momenum
(m1*(R/2)^2 + 0.5*m2*R^2)*wf = (m1*R^2 + 0.5*m2*R^2)*wi
(m*(R/2)^2 + 0.5*5*m*R^2)*wf = (m*R^2 + 0.5*0.5*m*R^2)*wi
m*R^2*(1/4 + 2.5)*wf = m*R^2*(1 + 2.5)*wi
2.75*wf = 3.5*wi
=> wf = (3.5/2.75)*wi
= (3.5/2.75)*0.41
= 0.522 rad/s
b) K = (1/2)*If*wf^2
= (1/2)*(m1*(R/2)^2 + 0.5*m2*R^2)*wf^2
= (1/2)*(m*R^2/4 + 0.5*5*m*R^2)*wf^2
= (1/2)*m*R^2*(2.75)*wf^2
Ko = (1/2)*Ii*wi^2
= (1/2)*(m1*R^2 + 0.5*m2*R^2)*wi^2
= (1/2)*(m*R^2 + 0.5*5*m*R^2)*wi^2
= (1/2)*m*R^2*(3.5)*wi^2
K/Ko = (2.75)*wf^2/(3.5*wi^2)
= 2.75*0.522^2/(3.5*0.41^2)
= 1.27
.
A city is considering reidevelopment of existing 500 ha of industrial.docx
A city is considering reidevelopment of existing 500 ha of industrial lands to an area of mixed use (residential, commercial, and institutional). The land has housed a number of industries over the last several decades, which has resulted in significant contamination of soil groundwater. Following the CSCE Guildlines for Sustainable Development, decribe some considerations you would have if you were tasked with one of the following:
a) developing an integrated water management plan (i.e. drinking water, wastewater and stormwater management) for the development.
b) working with architects in planning and design of new buildings to be constructed on the property.
c) preparing a transportation master plan (all forms of transportation) for the site..
Solution
a) Drinking Water- Treatment plant has to be provided as per codal provisions for water purity for drinking.
Estimation of drinking water should be done by proper expectation for 50 or design life time for treatment system.
Based on the usage KLD per day by different means & intensity we need to expect the need for the system.
Waste water - Based on usage wastage expected by different means of system & the same has to be properly treated befre it comes out and disposed to river or lake or reusage by other means.
b) New buildings are planned based on traffic analysis & proper town planning so that addition wont object present Eco System.
c) Transport system- Based on people statistics, like age , type of people we have to project the common and most usable transport , It may be BRTS, Metro or Local network.
.
On January 1- 2014- the Gamekeeper On January 1- 2014- the Gamekee.docx
On January 1, 2014, the Gamekeeper
On January 1, 2014, the Gamekeeper
On January 1, 2014, the Gamekeeper
Solution
1) Journal entries:
2) It will be reported under the category \"Investment held to maturity\".
.
On January 1- 2014- The Timber Company acquired a 12- interest in the.docx
On January 1, 2014, The Timber Company acquired a 12% interest in the Twig Corporation through the purcahse of 72,000 sahres of Twigs common stock, paying $422,000. During 2014, Twig paid $28,000 in total dividends and reported net income of $95,675. The market price of Twigs common stock was $5.44 per share on December 31, 2014.
Journalize the following:
A. Timbers stock acquisition
B. Timbers realized income for 2104
C. Entry or entries to adjust the investment account to its appropriate 12/31/14 balance.
Solution
Investment in Common Stock Dr 422,000.00 To Bank A/C 422,000.00 (Being investment in common Stock) Bank Account Dr 3,360.00 To Dividend A/C 3,360.00 (Being dividend received(28000*12%) Provision for dimunition in Value Dr 30,320.00 To Investment 30,320.00 (Being decline in value of investment) Profit and loss Ac Dr 30,320.00 To Provision for dimunition in Value 30,320.00 (Being provision charged to profit and Loss Account) Note No of shares 72,000.00 Purchase price 422,000.00 Purchase price per share 5.86 Purchase price per share at end of year 5.44 Loss per share 0.42 Total decline in investment 30,320.00
.
On January 1- 2014- Frick Company purchased 10-000 shares of the stock.docx
On January 1, 2014, Frick Company purchased 10,000 shares of the stock of Floozy, and did obtain significant influence. The investment is intended as a long-term investment. The stock was purchased for $90,000, and represents a 30% ownership stake. Floozy made $25,000 of net income in 2014, and paid dividends of $10,000. The price of Floozy\'s stock increased from $10 per share at the beginning of the year, to $12 per share at the end of the year
Requirements:
a. Prepare the January 1 & December 31 general journal entries for Frick Company.
b. How much should the Frick Company report on the balance sheet for the investment in Floozy as the end of 2014
Solution
a. Prepare the January 1 & December 31 general journal entries for Frick Company.
b. How much should the Frick Company report on the balance sheet for the investment in Floozy as the end of 2014
Frick Company report on the balance sheet for investment in Floozy as the end of 2014= $ 90000
.
On January 1- 2013- Randolph signed a two year lease to rent office sp.docx
On January 1, 2013, Randolph signed a two year lease to rent office space from Zoff. The lease commenced immediately on January 1, 2013. During 2013, Randolph paid Zoff, $36,000 for the first year
Solution
b) $39,000
a) When comparing their 2012 and 2013 returns, they will deduct the same amount of itemized deductions on each return
d) $700,000
.
On January 1- 2011- Mulcahy Manufacturing Inc-- a newly formed corpora.docx
On January 1, 2011, Mulcahy Manufacturing Inc., a newly formed corporation, issued 1,000 shares of common stock in exchange for $135,600 cash. No other shares were issued during 2011, and no shares were repurchased by the corporation. On November 1, 2011, the corporation
Solution
Mulcahy Manufacturing Inc
Stock holder equity,
Dec, 31 2011
Particulars Amount
Capital stock:
Common stock $135,600
Net income $25,300
____________
Total Stock holder equity $160,900
_____________
Note: corporation major stock holder sold to another stock holder, ownership change but corporation stock remain unchanged. Capital gain to particular stock holder not to corporation.
.
On January 1- 2011- Bishop Company issued 10- bonds dated January 1- 2.docx
On January 1, 2011, Bishop Company issued 10% bonds dated January 1, 2011, with a face amount of $20 million. The bonds mature in 2020 (10 years). For bonds of similar risk and maturity, the market yield is 12%. Interest is paid semiannually on June 30 and December 31.
REQUIRED:
A. Determine the price of the bonds at January1, 2011.
B. Prepare the journal entry to record the bond issuance by Bishop on January 1, 2011.
C.Prepare the journal entry to record interest on June 30, 2011, using the effective interest method.
D. Prepare the journal entry to record interest on December 31,2011, using the effective interest method
Solution
Answer A. Price of bond
A=20*10%/2
i=12%/2=.6
n=10*2=20
FV = 20 million
=1*(1-(1+.6)-20/0.6+20/(1+.6)*20 = 17.71 Million
B. Cash.....................................................Dr.$177,06,016
Unmortized discount on bond Issue.........Dr $22,93,984
Bonds Payable.....................Cr $200,000,00
C. Interest Expense .....................................Dr $11,14,699
Cash ............................................................Cr $10,00,000
Unmortized discount on bond issue..................Cr.$1,14,699
.
On January 1- 2010 Manovic LTD paid HULU $120 for internet movie acces.docx
On January 1, 2010 Manovic LTD paid HULU $120 for internet movie access for the entire year of 2010.
1)Create the proper journal entry for Manovic as of January 1, 2010. Include description of entry below it.
2)Create the proper journal entry to recognize entertainment expense on January 31, 2010. Include description of entry below it.
3)How much entertainment expense will Manovic have incurred by March 31th, 2010?
4)How much prepaid entertainment will Manovic still have remaining on March 31th , 2010?
Solution
1jan)Prepaid Entertainment Debit $ 120
Cash credit                        $ 120
[Since advance paid for whole year for Internet movie access is an asset Therefore it is Debited.and cash is going out of business therefore credited]
31jan) Entertainment expense Debit $ 10
Prepaid Entertainment credit   $ 10
[Recognising the subscription paid in advance, for month of january of services used in january.since $120year is for whole year therefore subscription expense for month of january = $10 [120/12]
subscription expense for month of January = 12 [120/12].
31March)Expense incurred till 31 march is equal to 10*3 =$ 30 [from january to march]
31March)Till 31 march $30 is incurred as entertainment expense therefore prepaid entertainment still remaining on 31 march= $ 90Â Â Â [ 120-30]
.
On December 31-2011- the shareholders-' equity section of the balance.docx
The shareholders' equity section of R&L Corporation's balance sheet on December 31, 2011 showed contributed capital of $258,000 for 60,000 authorized shares and additional paid-in capital of $13,600. On February 1, 2012, the board declared a 12% stock dividend to be issued on April 30, resulting in additional shares being issued and increases to contributed capital and retained earnings.
On December 31- 2012 Revel Corporation-'s balance sheet reported the f.docx
On December 31, 2012 Revel Corporation\'s balance sheet reported the following.
During 2013, Rebel decided to discontinue accounting for share buybacks as treasury shares. Instead, the shares will be treated as having been retired.
REQUIRED: PREPARE THE APPROPRIATE JOURNAL ENTRY TO EFFECT THIS CHANGE.
Solution
C
COMMON stock (20000 x1)
20000
Paid-in Capital in Excess of Par
80000
Retained earning -difference
525 000
Treasury stock
625 000
4M/1M=$4
4X 20000=80000
.
On December 31- 2008- Nolte Co- is in financial difficulty and cannot.docx
On December 31, 2008, Nolte Co. is in financial difficulty and cannot pay a note due that day. It is a $600,000 note with $60,000 accrued interest payable to Piper, Inc. Piper agrees to accept from Nolte equipment that has a fair value of $290,000, an original cost of $480,000, and accumulated depreciation of $230,000. Piper also forgives the accrued interest, extends the maturity date to December 31, 2011, reduces the face amount of the note to $250,000, and reduces the interest rate to 6%, with interest payable at the end of each year.
*103. Nolte should recognize a gain or loss on the transfer of the equipment of
a. $0.
b. $40,000 gain.
c. $60,000 gain.
d. $190,000 loss.
*104. Nolte should recognize a gain on the partial settlement and restructure of the debt of
a. $0. b. $15,000.
c. $55,000.
d. $75,000.
*105. Nolte should record interest expense for 2011 of
a. $0.
b. $15,000.
c. $30,000.
d. $45,000.
Solution
a. Fair value - ( Original cost - accumulated depreciation)
= $290,000
.
On February 12- Addison- Inc- purchased 6-000 shares of Lucas Company.docx
On February 12, Addison, Inc. purchased 6,000 shares of Lucas Company at $22 per share plus a $240 brokerage fee. On August 22, Lucas paid a $0.42 dividend per share. On November 10, 4,000 shares of Lucas stock were sold for $28 per share less a $160 brokerage fee. The journal entry for the sale would include:
Solution
c. A debit to Cash for $112,000.
.
On December 1- 2014- Mr- and Mrs- Tyler purchased four tickets for a N.docx
On December 1, 2014, Mr. and Mrs. Tyler purchased four tickets for a New Year\'s Eve party at their church, a qualified charitable organization. Each ticket cost $75 and had a FMV of $50. The Tylers gave two of the tickets to a needy family in the community. Mr. Tyler tended bar at the party from 8pm to 4am and was paid $40. The usual charge for such services is $80. Immediately before midnight, Mr. Tyler pledged $200 to the church\'s building fund and delivered a check for that amount on January 2, 2015. Of the amounts described above, what is the total amount the Tylers can deduct as a charitable contribution deduction for 2014?
$50
$100
$140
$340
None of the above.
Solution
cost of ticket =$75
FMV of tckets = $50
No of tikcets purchased = 4
Charitabale contribution available for deduction = (75-50)*4= $100
Ans is b =$100
.
On December 1- 2011- Joseph Company- a U-S- company- entered into a th.docx
On December 1, 2011, Joseph Company, a U.S. company, entered into a three-month forward contract to purchase 50,000 pesos on March 1, 2012, as a fair value hedge of a foreign currency denominated account payable. The following U.S. dollar per peso exchange rates apply:
Date : December 1, 2011 Spot Rate : $0.092 Forward Rate (March 1, 2012) : $0.105
Date : December 31, 2011 Spot Rate : $0.090 Forward Rate : (March 1, 2012) : $0.095
Date : March 1, 2012 Spot Rate : $0.089 Forward Rate : (March 1, 2012) : N/A
Question :
Joseph\'s incremental borrowing rate is 12 percent. The present value factor for two months at an annual interest rate of 12 percent is .9803. Which of the following is included in Joseph\'s December 31, 2011 balance sheet for the forward contract?
A. $5,146.58 asset.
B. $5,146.58 liability.
C. $500 liability.
D. $490.15 asset.
E. $490.15 liability.
I need detailed help with steps as to how E was calculated
Solution
Ans:
E. $490.15 liability.
$0.105 - $0.095 = ($0.01) × MP50,000 = ($500.00) × .9803 = ($490.15) Liability
.
On the classified balance sheet- the assets are listed in sections- Cu.docx
On the classified balance sheet, the assets are listed in sections: Current Assets, Long-term Investments, PP&E, Intangible Assets, and Other Assets. Do all of these need to be in order of liquidity?
For example, does it matter if Land is before Buildings and Equipment in the PP&E section?
Or that Cash surrender value of life insurance is before Land held for future use?
Also, is there any order for the liabilities section? Is it alright to just put it in order of largest to smallest?
Solution
while we recording assets, we always write liquid assets first, and illiquid assets next and nominal assets later. means liquid assets like cash, prepaid expenses, receivables, and any short term receivables should write first, later all fixed assets and later intangible assets and any contingent assets.
even in liabilities we should start with long term liability, that is equity, preference, any other debt, and next all current liabilities. the earliest payment should be write as last item of liability and so on.
.
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NEWSPAPERS - QUESTION 1 - REVISION POWERPOINT.pptx
NEWSPAPERS - QUESTION 1 - REVISION POWERPOINT.pptx
on Stre - DH SolutionThe strength of a nucleophile depends on how easi.docx
- 1. on Stre - DH Solution The strength of a nucleophile depends on how easily it can donate its lone pair of electrons (for a neutral nucleophile like H 2 O) or how easily it can give away its negative charge (for a negatively charged species like Cl - ) to a center of positive charge. In terms of electronegativity, Fis a highly electronegative atom followed by O, then comes N and then C. So it is easier for C to share its electrons followed by N then O then F. In other words the more is the basicity of a nucleophile the more is its strength as a nucleophile. All nucleophiles are lewis bases. The basicity reduces as we move from left to right in a period. The arrangement of elements in decreasing order of basicity is C>N>O>F Hence this should be the decreasing order of strength of these atoms as a nucleophile. Likewise if we compare the given options, the arrangement of these groups in increasing order of strength of nucleophile is as shown -F<-OH<-CN<-C 2 H 6 (C 2 H 6 - ethyl)