= N2 H2(g) N2(g) NH3(g) + Initial Change Final

Q: acid base titration

A: In this question we have to explain that how does a redox titration differ from an acid base titrati...

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Q: 2. A metal with atomic weight of 63.65 g/mol crystallizes with a face-centered cubic unit cell. The ...

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Q: Consider the skeletal structure of 1-Isopropyl-2-methylcyclohexane. Identify the number of hydrogen ...

A: Identify the number of hydrogen atoms bound to each carbon in the structure. 

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Q: This is the chemical formula for talc (the main ingredient in talcum powder): Mg;(Si,Og),(OH), An an...

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Q: The Kp for lead bromide ( PbBr2) is 4.6 × 10–6. Calculate the solubility of lead bromide in each of ...

A: Given Ksp of PbBr2 is 4.6×10-6. The solubility of PbBr2 has to be calculated in given different medi...

Q: 22- The RMN spectra of the two isomers of formula C10H14 are shown in problems 22a and 22b. Do not a...

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Q: One of the components of smog is ozone,O3, a colorless, toxic gas. It is a very strong oxidizing age...

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Q: What is the concentration of A2+ after 30 drops of 0.400 M A2+ solution is added to 30 drops of wate...

A: Answer: This question will be solved on the basis of the concept that moles of A2+ ion will remain c...

Q: Consider the molecules CH3CH3 and CH3CH2OH Using a description of intermolecular forces, briefly exp...

A: Answer :  ★ considering the molecules CH3CH3 is a alkane molecule and CH3CH2OH which is a alcohol mo...

Q: 7a. The structure below is "crack" cocaine, a substance used as a recreational drug. Cocaine acts by...

A: 7a :  Given structure is cocaine.    cocaine is acid or base and reaction with hydrochloric acid giv...

Q: Draw a better resonance contributor than the one shown below. Interactive 3D display mode H;C NH Dra...

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

Q: reaction will occur, give the product(s) otherwise write no reaction. Also indicate if the reaction ...

A: The answer is as follows:  

Q: NMR spectra (Figures a, b, c and d) of four isomers are shown. with formula Cl0HuOr Their infrared s...

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Q: 4) Show the mechan iSm for the SNI reaction, muolving a carbocetion rearrangement. HO + HI 10) For e...

A: 9.   This is an example of SN1 reaction.  The mechanism involves 1. Removal of I- and formation of c...

Q: Oraw the skeletal structure of the reaction product below. 2Brg

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Q: Consider the reaction A + B- P. Since the rate law could depend on both A & B, we take the following...

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Q: Which gas has the greatest density? Question 4 options: A) 2.3 mol of He at 1.2 atm an...

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Q: In this particular problem, draw all possible resonance structures on your notebook. Based on your s...

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Q: The rate of a chemical reaction a. is always increased with increasing temperatures. b. is directly ...

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Q: III. Convert the ff. cyclic sugar structures in Fischer formula into their corresponding Haworth for...

A: The first step in converting a Fischer to a Haworth is to draw in these wedges and to number the car...

Q: 2. Name the following compounds. b) d) HC HC CH

A: We have been asked to name the following compounds on the basis of IUPAC nomenclature. 

Q: Acrolein test

A: The acrolein test is used to determine if oil or fat is present. When oil or fat is heated in the pr...

Q: *WRITE RESULTS AND DISCUSSIONS OF TITRATION- CONCENTRATION OF VINEGAR *WRITE CONCLUSION

A: A question based on acid-base titrations that is to be accomplished.

Q: A cylindrical glass tube 20.0 cm in length is filled with acetone. The mass of the acetone to fill t...

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Q: 1. Which of the following paired atoms 1 point is non-polar? * a. Br-F b. H-CI c. H-F d. H-P 2. Whic...

A: Here we have to determine polar and nonpolar bond, ionic and covalent bond, shape and dipole moment ...

Q: 4..Analyze the HNMR spectrum below:

A: Proton nmr peaks stands for different proton environment present in the organic compound.

Q: Explain how you would prepare a 100 mL of a 25 ppm NH4-N standard solution using anhydrous ammonium ...

A: 100ml-25ppm NH4-N standard solution using an NH4Cl ASAP 14mg-53.5mg Of NH4Cl  1mg-53.5/14  

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Q: 1. What is the mass of 1.22 x 1022 molecules of silicon monocarbide? How many molecules are in 99.5 ...

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Q: 1. How does real-time polymerase chain reaction work? 2. How is SYBR Green used in the experiment?

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Q: Which of the following atom does belong to lanthanide group? Group of answer choices A.) U: Z = 92 B...

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Q: How much KBr could dissolve in 50 g of H2O at 70ºC?

A: Solution is mainly of three types:-  Unsaturated solution  Saturated solution  Supersaturated soluti...

Q: If 25.00 mL of 0.100 M AGNO3 is mixed with 25.00 mL of 0.300 M NaCN, find (Ag*], [Ag(CN)2], and [CN'...

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Q: thermometer A 55.4 g sample of aluminum, which has a specific heat capacity of 0.897 J'g , is put in...

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Q: SUBATOMIC PARTICLES AND ISOTOPES Complete Symbol Atomic Mass Number of Number of Number of Element N...

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Q: 22. Name (IUPAC) the following compound:

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Q: A gas storage cylinder in an ordinary chemical laboratory measures 2.0 cm wide and 8.0 cm high. This...

A: Given data : Initial pressure = 21.7 atm Width = 2.0 cm Height = 8.0 cm

Q: A sample of gas at 27°C has a pressure of 0.7 atm. Compute for the new temperature in Kelvin at 740 ...

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Q: which is in th7 place in 115.87

A: The correct answer is given below

Q: Which of the following has the greatest tendency to be oxidized? (You may consult a table of standar...

A:   Redox reaction :  The chemical reaction in which reduction and oxidation takesplace simultaneously...

Q: Given equation : Ag^+ + Br^- --> AgBr + e 1. what is the standard cell potential at 298k, given the ...

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Q: 20.0 ml of 0.01 M HCl is added to    5. 6    ml  0. 10 M NaOH, the resulting pH of the solution will...

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Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.