2,220 Answered Questions for the topic organic chemistry

Organic Chemistry

05/18/20

What do you mean by derivative of carbonyl compound? give example
What do you mean by derivative of carbonyl compound? give example
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Organic Chemistry

05/18/20

How will you identify benzoates of ethylene glycols, trimethylene glycol and glycerol?
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Organic Chemistry Chemistry

05/15/20

Ionic equation of Fe(NO3)3 + KSCN -> (Fe(SCN))?
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Organic Chemistry Chemistry

05/11/20

Complete the following nuclear equation: 9 4 Be + 1 1 H -> 6 3 Li + __
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Organic Chemistry Chemistry Biochemistry

05/09/20

Why do we sweat order to cool off?
Drops of water and ethanol are placed on an overhead projector and the ethanol drop is seen to evaporate more rapidly. Our bodies utilize sweating as a means to stay cool and maintain... more
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Organic Chemistry

05/08/20

PLEASE HELP EMERGENCY!!!?
5. Write the rate law for the reaction: A + 2B → C + D, based on the following data.  [A]     [B]     Initial rate (M/s)0.100  0.100    1.25 x 10-30.200  0.100    2.50 x 10-30.100  0.200    1.25... more
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Organic Chemistry Chemistry

05/08/20

Anyone understand chem?

Solve for the by electroplating via electrolysis for each of the following sets of conditions, and then rank the masses by magnitude from smallest largest.Metal. Reduction half reaction (Ag). ... more
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Organic Chemistry Chemistry

05/06/20

Which of the following transformations represent an increase in the entropy of the system.
Which of the following transformations represent an increase in the entropy of the system.Choose all that apply43 g C2H5OH (liquid, 171K)  43 g C2H5OH (liquid, 340K)47 g Co (liquid, 1.768×103K)  47... more
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Organic Chemistry Chemistry

05/06/20

For which of the following reactions is S° > 0.
For which of the following reactions is S° > 0.Choose all that... more
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Organic Chemistry Chemistry Biochemistry

05/06/20

For chromium, Cr, the heat of fusion at its normal melting point of 1860 °C is 14.6 kJ/mol.
For chromium, Cr, the heat of fusion at its normal melting point of 1860 °C is 14.6 kJ/mol.The entropy change when 1.61 moles of solid Cr melts at  1860 °C, 1 atm is _____ JK-1.
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Organic Chemistry Chemistry Biochemistry

05/06/20

Arrange the substances on the left in order of increasing entropy. Assume 1 mole of each at standard conditions.
Arrange the substances on the left in order of increasing entropy. Assume 1 mole of each at standard conditions. match them in orderl SnCl4(l) Sn(OH)2(s) SnCl4(g) SnO(s) 1) lowest... more
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Organic Chemistry Biology Chemistry Biochemistry

05/06/20

Water can decompose into H2 and O2 via electrolysis. How many moles of H2 could theoretically be obtained from 87.5 g of water. theoretical yeild: mol H2
Water can decompose into H2 and O2 via electrolysis. How many moles of H2 could theoretically be obtained from 87.5 g of water. theoretical yeild=:________________ mol H2
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Organic Chemistry Chemistry Biochemistry

05/06/20

Drawing Amino Acids (Organic Chem)
Draw the tetrapeptide below out in full chemical structure by attaching the four amino acids from your amino in order (this is an application of the characteristic organic reaction Formation of an... more
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Organic Chemistry Chemistry Chem

05/06/20

BioOrganic Chemistry Problem

Look at the structural formula for D-tagatose.To what class of biomolecules does D-tagatose belong? What functional groups can you identify in D-tagatose? Would D-tagatose be soluble in water?... more
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Organic Chemistry

05/04/20

Water and bonding, combustion, chemistry ocr a level
1. Explain why a small proportion of molecules of water have a relative molecular mass of 20?2. What mass of CO2 in grams, is formed by the complete combustion of 42m3, measured at RTP, of propane?
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Organic Chemistry

05/03/20

HELP ASAP PLEASE!!
25.Without doing any calculations, determine the sign of DSsys for each chemical       reaction.(i) Mg(s) + Cl2(g) → MgCl2(s)(ii) 2H2S(g) + 3O2(g)  → 2H2O(g) + 2SO2(g)(iii) 2O3(g)  → 3O2(g)(iv)... more
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Organic Chemistry

05/01/20

HELP ASAP PLEASE!!!!
18.Calculate the pH of a buffer solution that is 0.195 M in CH3CO2H and       0.125 M  NaCH3CO2 ?
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Organic Chemistry

05/01/20

HELP ASAP!!!!! EMERGENCY PLEASE
11. The initial concentration of a reactant in a second order reaction is 0.95 M. The       rate constant k is 0.0045 M-1 s-1. What will be the concentration after 3 minutes?
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Organic Chemistry

04/30/20

Acid hydrolysis of lactones?
What is the mechanism for the acid hydrolysis of lactones?
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Organic Chemistry Chemistry Aspirin

04/30/20

How can the percentage purity of the aspirin I synthesised be more than 100%?
During a lab session, I synthesised some aspirin. I worked out the theoretical moles of aspirin to be 5.551x10^-4 (0.100g/180.16) and my actual moles to be 5.1954x10^-4 (0.0936g/180.16). So when I... more
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Organic Chemistry Chemistry Biochemistry

04/30/20

Chem help please.3?
Calculate the mass of Li formed by electrolysis of molten LiCl by a current of 7.6 * 10 ^ 4 * A flowing for a period of 30 h. Assume the electrolytic cell is 90 % efficient.i did this and... more
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Organic Chemistry Math Chemistry Biochemistry

04/30/20

Chem help please.1?

What is the emf of this cell when [Fe^ 2+ ]=1.1M [Fe^ 3+ ] =2.0*10^ -2 M,P O 2 = 0.45 atm and the pH of the solution in the cathode compartment is 3.2.A voltaic cell utilizes the following... more
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Organic Chemistry Chemistry Biochemistry

04/30/20

Chemistry help please?

Under standard conditions what is the maximum electrical work in joules that the cell can accomplish if 67.0 g of Sn is consumed? A voltaic cell is based on the reactionSn(s)+I2(s)—>Sn^2+(aq) +... more
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Organic Chemistry Science Chemistry Biochemistry

04/29/20

Describe how the processes of boiling, sublimation, and efflorescence are similar.
Describe how the processes of boiling, sublimation, and efflorescence are similar.
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Organic Chemistry Science Chemistry Biochemistry

04/29/20

Consider the following list of compounds: MgSO4, C2H2, CH4, CaO. Which compounds are most likely to dissolve in water?
Consider the following list of compounds: MgSO4, C2H2, CH4, CaO. Which compounds are most likely to dissolve in water?
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