Questions: Calculate the heat gained or lost when 17.0g of water cool from 80.0°C to 25.0°C? (specific heat of water 1.0 cal/g°C) is Given: Mass, Change in Temp (AT), and Specific Heat (Cp) Unknown: Specific Heat (Cp) Equation: (AT) = Q/(mass)(Cp) v %3D Substitute: N/A Solve: 935 cal v

Q: CH 3- CA 3 C. Br C. and Br H Br H Br di astere omers I'

A: Stereisomers are those which have same molecular formula but different arrangement of atoms in…

Q: 1-methanol 2- ethanol 3- pentanol

A: HPLC determines the concentration of each component in terms of the intensity of peaks.

Q: For each compound below, propose an efficient synthesis using diethyl malonate as a starting…

A: (Note- Since it is a multiple questions , hence I am solving first question) Here we have to…

Q: It is located 30 km above the Earth's surface (roughly in the middle of the stratosphere), the…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: 6. Show ALL products that you would expect from the reaction of l-methyleyclopentene with NBS? Show…

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Q: The titration of a 20.0-mL sample of an H₂SO₄ solution of unknown concentration requires 22.87 mL of…

A: Given-> Volume of H2SO4 = 20.0 ml Volume of KOH = 22.87 ml Molarity of KOH = 0.158 M

Q: Draw the mechanism from benzaldehyde to this compound. Reactants: i) NaBH4 ii)PBr3

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Q: 100 a. 43 80 60 40 20 86 58 71 20 40 60 80 100 120 100 b. 57 80 60 29 40 86 20 20 40 60 80 100 120…

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Q: Chemistry Draw the structure of the enol form of the molecule below: .C. H. H. 9.

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Q: 14.55 Complete and balance the following oxidation-reduction reactions, assuming they occur in…

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Q: 60. Silicon has three naturally occurring isotopes (Si-28, Si-29, and Si-30). The mass and natural…

A: For isotopes , total abundance of all isotope in total is 100% . So we can use given abundance of…

Q: Determine the formal bond order between the two metals in the complex [Ru2(mu-O2CCH3)4]2*

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Q: Draw a plausible mechanism for the reaction shown below. Determine the major product and provide…

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Q: 6. Determine the [H+ ] from the following pH or pOH values: a. pH = 3.3 b. pH = 7.69 C. pOH = 10.21…

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Q: Henry's Law constant is 0.000600 mol/kg-bar and 0.00130 mol/kg.bar for N2 and O2 respectively at…

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Q: Reactivity factor of reducing agent in the balanced redox equation: H2O + H3AsO3 + I2 ---> H3AsO4 +…

A: Balence redox reaction : H2O+H3AsO3+I2--->H3AsO4+ 2HI

Q: QUESTION 1 Use these pKa values to caloulate the charge on the peptide below at pH 6. alpha COOH 2.0…

A: “Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: 1. Comment on the similarities and differences in the methods of preparing soap and detergents.

A: As per the guideline, since you have asked multiple questions, we have solved the first question for…

Q: Air conditioners dry the air while they cool the air. Suppose an air conditioner is used to cool a…

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Q: Convert 750 ppb Al(III) to molar units

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Q: For each of the two pairs of molecules below, circle the molecule in the pair that would be expected…

A: Strength of London dispersion forces is dependent on size and shape of molecules. 1.) Size :  If the…

Q: Electrochemistry: Calculate:      a. Electrical Energy      b. AG°      c. K od the reaction.

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Q: 1 The sum of the ON of all atoms in a polyatomic group is equal to the group's net charge true or…

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Q: What type(s) of intermolecular forces must be overcome when liquid dipropyl ether…

A: In this question, we will selected the correct intermolecular forces between the ether molecules.…

Q: Determine the wavelength maximum (in nanometers) of a body if it is heated up to 477 °C. Answer…

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Q: Please follow directions carefully

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Q: 4. Determine the pOH given the following values: a. [H*] = 2 x 10 8 b. [OH-] = 5.1 × 10-11

A: 4) Since, pH = -log10[H+]  pOH = -log10[OH-]  pH + pOH = 14 Then,

Q: Using the table of the weak base below, you have chosen Aniline as your weak base in the buffer…

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Q: 1. The oxidation of nitrogen oxide produces nitrogen dioxide, as shown below: 2NO (g) + O2 (g) →…

A: 1.here we are required to find the number of moles  of product formed

Q: Which among the representative compounds is/are soluble in NaOH? Write the acid-base reactions…

A: Acid is substance which release hydrogen ions and base is substance which release hydroxyl ions when…

Q: Question 9 A researcher is using 5.43 x1023 molecules of chlorine gas (Cl2) in an experiment. How…

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Q: What volume ( in mL) of. 0.3050M HBr is required to neutralize 40mL of 0.8000m NaOH?

A: The volume of HBr required is given below

Q: Acetic acid has a Ka value of 1.8×105, what is its Kb value? Section а. 5.6x10-10 b. 1.8×10-19 с.…

A: Given that, Ka= 1.8×10-5 Then, Kb= ?

Q: Balance the equation equalizing both atoms of the equation Mg + H2 SO4--->

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Q: The following information is given for mercury at 1 atm: AH(356.60 C) = 295.6 /g Alls(-39.00°C) -…

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Q: Determine if the photosynthesis reaction is spontaneous at 80°C. Chemical Equation: CO2 + H2O →…

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Q: Write a short description of the physical and chemical properties at standard temperature and…

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Q: A chemistry graduate student is studying the rate of this reaction: NH4OH(aq)—>NH3(aq)+H2O(aq) He…

A: First we would use the given data to plot graph for each order of reaction ( 0 , 1, 2 ) to check the…

Q: Draw a plausible mechanism for the reaction shown below. Provide explanations for each step in the…

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Q: When do you have to newtralize (acefit acil with before distillatfom ? ou sodium hychtride

A: Acetic acid forms azeotropic mixture with Water and their boiling points are nearly same.Therefore…

Q: How do you call the oxidation product of Vitamin C?

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Q: How many joules of heat are given off when 5.00 g of water cool from 75.0 °C to 25.0° C? (Specific…

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Q: Writing Equations for Acid Reactions: Write an equation for the reaction of hydrochloric acid with…

A: Reaction of acid with metals When an acid react with metal it produces metal salt and hydrogen gas…

Q: benzene by 19) Calculate the amount of heat (in kJ) necessary to raise the temperature of 53.8 50.6…

A: Given-> Weight of benzene = 53.8 gm Change in temperature (∆T) = 50.6°C  Specific heat capacity…

Q: What is the AH for the reaction below? C2H2(g) +3 H20() → CH4(g) + 02(9) + CH3OH() Use the following…

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Q: Which of the following sample can be subjected to acidity analysis and titrated against basic…

A: The sample which is acidic in nature would be subjected for acid analysis and can be titrated…

Q: Glycolysis is a breaking down process in which is converted to sugars. lactose chlorinated…

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Q: Using the table of the weak base below, you have chosen Aniline as your weak base in the buffer…

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Q: 100 MS-NU-0661 80 60 40 20 10 20 30 40 50 60 70 80 90 100 m/z Relative Intensity

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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.