Estimate the difference between AHreaction and AU reaction (in kJ/mol) for the reaction: N₂H4(1) + 2H₂O₂(1)→N₂(g) +4H₂O(l) at 298 K

Q: 7- Describe the preparation of aqueous stock solution 3.000 L of 2 M lactic acid (weak acid, ka=…

A: M= n / V where M is molarity, n is  number of moles and V is volume.n = MV= (2 M) × (3.000 L) =…

Q: Given a reaction mixture of 40 mols of ethylebe glycol, 40 mols terephthalic acid, and 1.2 mol…

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Q: Draw the product of the reaction shown bel wedge bond to indicate stereochemistry of substituents on…

A: -> An electrocylic reaction is pericyclic reaction in organic chemistry where a cyclic compound…

Q: Curved arrows are used to illustrate the flow of electrons. Using the provided starting and product…

A: Bromine addition to an alkene goes through cyclic bromonium ion intermediate.Addition is anti to…

Q: OH H₂SO4 cat. SN2 conditions

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Q: 1. 2. and OH & Al and H OH

A: Given are organic synthesis reactions. Given reactants are only source of carbon for target…

Q: Draw the structure for the conjugate base of the acid shown. Be sure to include all lone pairs and…

A: The objective of the question is to draw the structure of the conjugate base.

Q: A photon of blue light has a frequency of 7.50 x 1014 Hz. Calculate the wavelength of this photon (c…

A: Given data : Frequency of the blue light photon = 7.50 x 1014Hz Velocity of light, c = 3.0 x 108 m/s…

Q: ○ 1 cm³ O10-² L O 1000 L Q 0.0001 L

A: Volume' is a quantity that shows the amount of three-dimensional space occupied by an object or a…

Q: Bovine chymotrypsinogen has a molecular weight of 25.6 kDa. Amino acid analysis shows that this…

A: The objective of the question is to calculate the alanine residues in a molecule of bovine…

Q: 5. Rank absorption of the indicated bonds in decreasing (highest to lowest) order of wavenumber. b.…

A: The objective of the question is to rank the absorption of the indicated bonds (H-H, N-H, and B-H)…

Q: (6.65x10^5)/(6.60x10^-6) (3.73x10^8) Please Calaculition. Only typed solution

A: When the numbers are multiplied or divided in a mixed operation, keep the least significant figure…

Q: (a) What is the volume (in km3) of Avogadro's number of sand grains if each grain is a cube and has…

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Q: A mixture of H2 (g) and N2(g) has a density of 0.216 g/L at 300 K and 500 torr, respectively. What…

A: Answer:-This question is answered by using the simple concept of calculation of mole fraction using…

Q: How many litres of C6H14(I), measured at 20 C, must be burned to provide enough heat to warm 25.3 m3…

A: Given ,Objective :

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A: The objective of this question is to calculate the enthalpy of vaporization of a substance X using…

Q: For the following equation, how many hydrogen atoms are added or lost? a OH one hydrogen atom added…

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Q: I. III. II. IV. IL EN =N

A: Concept of Resonance;When all the properties of a molecule cannot be explained by a single structure…

Q: (b) 1) Excess MeMgBr 2) H2O НО OH

A: An arrow always depicts from a region of high electron density to low electron density ; that is…

Q: Precipitation titration is often used to determine the concentrations of halides. Consider the…

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Q: In this activity, you will begin to use IR spectroscopy to examine functional groups in organic…

A: IR spectroscopy is an important tool for the determination of the functional group in the compound.…

Q: What is the total enthalpy change during the process in which 100.0 g of water at 50.0 °C is cooled…

A: Answer:-This question is answered by using the simple concept of calculation of total enthalpy…

Q: Ethanol (CH3CH2OH) functions as a O Strong nucleophile and strong base. O Strong nucleophile and…

A: In substitution reaction  ,a nucleophile attacks the electrophilic centre to form a substituted…

Q: Use the balanced equation, 4K + O₂ 2 K₂O, to answer the following question. How many grams of K are…

A: mass of O2 = 19.1 gmolar mass of O2 = 32.00 g/molAtomic mass of K = 39.10 g/mol

Q: Andre, a physics undergraduate, enters a coffee shop that is holding a contest, Customers who guess…

A: The objective of the question is to calculate the number of coffee beans.

Q: Which compound is most likely to have roduced the IR spectrum shown? UM 4000 3500 A) 3000 2500 2000…

A: The question is based on the concept of organic spectroscopy. We need to analyse the spectral data…

Q: What is the predominant intermolecular force between HCI molecules? Oionic bonds Ohydrogen bonds…

A: Intermolecular force is the attractive or repulsive force between two atoms.It can be of different…

Q: Predict the total number of cls-trans Isomers of the following species (including the one given). Do…

A: Cis-trans are the geometrical isomers are formed due to different arrangements of groups along…

Q: The value of AH° for the reaction below is -6535 kJ. ob kJ of heat are released in the combustion of…

A: Enthalpy for the given reaction is -6535 Kj/mol.We have to find the heat released in combustion of…

Q: The following reaction shows the nucleophilic ring opening of an epoxide. CH3CH₂CH-CH₂ + CH3OH…

A: In a reaction, arrow movements are shown to indicate the movement of electrons. Arrows are drawn…

Q: Be sure your answer has the correct number of significant figures. 5.1 x 1024 molecules = mol X S

A: Given,number of molecules = 5.1 x 1024 molecules

Q: OH НО ОН OH OH O A = FAD; B = FADH2 O A = ATP; B = ADP O A= FADH2; ; B = FAD+ O A = CoA; B = acetyl…

A: To find out the names of species A and B in the given transformation

Q: An atomic cation with a charge of +2 has the following electron configuration: 1s²2s²2p° How many…

A: The electron configuration of +2 charged cation is as follows: 1s² 2s² 2p⁶

Q: The representation of the indicated bond in the following compound is _____ of the paper. a) in the…

A: In chemistry,  wedge and dash bonds are used to represent the three- dimensional arrangement of…

Q: Draw a resonance structure that places a pi bond in a different position. Include all lone pairs in…

A: Resonance structure:If the Lewis structure of a molecule or ion cannot explain by a single structure…

Q: Draw the organic molecule(s) which is(are) formed in the following reaction. Do not include…

A: Here secondary amine will act as a nucleophile and will give substituted product.

Q: Consider a process that occurs at constant volume. The volume of a gas in a cylinder is 4.50 L, the…

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Q: Write an equation which represents the standard enthalpy of formation reactions. [You must include…

A: Given that :We have to write the formation reactions for the following :Ca(NO3)2(s) CH3OH(l)…

Q: The reaction below has a change in enthalpy of -1203kJ. What amount of heat is associated with the…

A: We will use the given reaction and its corresponding value of change in enthalpy. On careful…

Q: V-A metal having a cubic structure has a density of 8.93 g/cm3, and a lattice parameter of 3.6151 Å.…

A: The cubic system is a type of crystal lattice characterized by its cubic symmetry. There are three…

Q: Which band is most likely to be attributable to a C=C stretch in the IR spectrum of an arene? A)…

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Q: Draw the molecule in the box below that has the IUPAC name, S-3-chloro-2-methylhexane (You have…

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Q: Draw the structure for the conjugate acid of the base shown. Be sure to include all lone pairs and…

A: Conjugate acid-base pairs are the pairs that differ by a proton or H+ ion. To form the conjugated…

Q: Use the following IR spectum provided to determine the structure of the missing para substituent.…

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Q: Predict the major product(s) that are expected when the following compound is heated with…

A: Protonation of oxygen make a better leaving group. SN2 attack by the bromide ion causes ring opening…

Q: At a particular temperature, the following reaction has a Kc value of 7.12. 2 COF2 (g) = CO2 (g) +…

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Q: 7. What is the expected major product for the following reaction? Ore the Br2 hv

A: Bromine addition in light follows radical mechanism. Homolytic cleavage of bromine - bromine bond…

Q: Which compound is most likely to have produced the ¹H NMR spectrum shown? 3 A) 1 8 7 6 5 4 Chemical…

A: Three signals in 1H NMR spectrum indicate three different proton environments for the organic…

Q: If the total pressure of a mixture of gases was 760 mm Hg and its composition is 20% oxygen, 0.04%…

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Q: Which of the following bonds is the shortest C-C single bond? III IV H

A: Hybridisation of carbon atoms are