Experiment name: Heat of solution( KNO3 with H2O and Tris with HCl) in 6772 Calorimetric Thermometer. Q1: Purpose of experiment Q2: Theory

Q: Calculate the pH for each case in the titration of 50.0 ml. of 0.100 M HCIO(aq) with 0.100 M KOH(aq)...

A: Answer: In this question we have to find out the pH of following four types of solutions at differen...

Q: What is the retention factor of a sample when after injectiion the void time (tM) took 4.18 sec? The...

A:

Q: (Review Topics] [References] A buffer is prepared by adding 24.2 mL of 0.49 M NaF to 55.7 mL of 0.49...

A:

Q: rsible Reactions ar Regression Analysis nod of Initial Rates lity of Rates tion Method osed Mechanis...

A: Rate law is experimentally determined law, According to this law, rate of a chemical reaction is dir...

Q: Question 5 The origin of the eEnergy released by a nuclear reaction O The number of atoms decrease u...

A:

Q: We titrated a 25.00 mL water sample with 0.1250 M HCI. The second endpoint at pH 4.5 was achieved af...

A:

Q: how do you call the analysis technique done  by identifying the fragments corresponding to each spec...

A: A mass spectrometer, molecules are converted to charged fragments called ions, which are then separa...

Q: You may want to reference (Pages 598 - 605) Section 14.5 while completing this problem. Part A A fir...

A:

Q: Al(OH),(s) + HCI(aq) - AICI, (aq) + H,0(1) C. Calculate the number of grams of AICI, and the number ...

A:

Q: (a) Balance the following half-reactions by the ion-electron half-reaction method:                 ...

A:

Q: Predict the major product(s) for each of the following electrocyclic reactions. Justify your answer ...

A:

Q: Predict the products for each of the following reactions and provide an explanation for the stereoch...

A: Diels-Alder reaction : is a reaction between diene and dienophile gives a six membered cyclic ring. ...

Q: A gas behaves ideally has a density of 1.952 g dm‑3 at 122 kPa and 298K. What is the molar mass (g/m...

A:

Q: Question 7 How do you call the small peak usually found at the the left of the moelcular ion peak in...

A:

Q: A buffer solution is 0.438 M in HNO2 and 0.236 M in KNO2. If Ka for HNO2 is 4.5x10-4, what is the pH...

A: Given: concentration of HNO2 = 0.438 M  concentration of KNO2 = 0.236 M  Ka for HNO2 = 4.5 × 10-4  T...

Q: (b) 2 Na(s) + 2 H20(1) → 2 NaOH(aq) + H2(g) As° J/K rxn As° × 10 J/K (enter your answer in scientifi...

A: Given data :- 2Na(s)    +     2H2O(l)     →   2NaOH(aq)    +    H2(g) ∆S for Na = 51.05 J/mol.K ∆S f...

Q: 2. A convenient way of converting hydroxide concentration to pH is -log 10-14 pH+ pOH -log 10-14 = p...

A:

Q: in analysis of copper, the cathode of hollow cathode lamp is a? -Zinc -Tungsten -Lead -Copper

A:                                 Answer in analysis of copper, the cathode of hollow cathode lamp is ...

Q: Here is a general reaction with a K value of 1.6x10^(-6): 2A (aq) + 3B (aq) ↔ 2C(aq) Initially, yo...

A: Given data : K = 1.6 × 10-6 Initial concentration of A = 1 M Initial concentration of B = 0.2 M

Q: Consider the reaction. 2 Pb(s) + 0,(g) 2 PbO(s) An excess of oxygen reacts with 451.4 g of lead, for...

A: %yield = ( Actual yield÷ Theortical yield)×100%

Q: The redox equation below is balanced. Mg + Fe3+ → Mg2+ + Fe  True or False?

A: No, this is not balance. So, the given statement is False.   

Q: Consider the following reaction equation of combustion of glucose, C6H12O6: a. Calculate the enthalp...

A: Mass of Glucose = 5.25 g C6H12O6 (s) + 6O2(g) ------> 6CO2(g) + 6H2O(g)

Q: What is the pressure of CO2 (in atm) at 275.80 K, molar volume = 4 liter/mole, if B = – 0.053 liter/...

A: Detail mathematical calculation for pressure using virial equation of state is shown below

Q: What is the bond order of the SO2 in the image below?

A: Bond order: When a molecule has resonance structure, the bond order tends to be average of the reson...

Q: What is the hydroxide ion concentration in a solution that has a pH value of 9.776?

A: Given, pH = 9.776  Concentration of the hydroxide ion = [OH-] = ? The formula used here are, pH + pO...

Q: For an aqueous solution formed by mixing 4.50mL of 0.15M LİOH with 25.0mL of 0.100M C2H5CO2H (propan...

A:

Q: At 1.00 atm and 298.15 K, a solid substance with a molar volume of 100.15 cm3/mol with melting tempe...

A:     At 1.00 atm a solid substance with molar volume 100.15 cm3 / mol at it's melting temperature of ...

Q: The volume of the solution inside a container is constant as the time approaches infinity. True or ...

A:

Q: Calculate the wavelength of the emitted photon when a particle of 1.0 x 10-27g in a box 6.0 A° long ...

A:

Q: certain compound has an empirical formula of C2H6OSi and a molecular weight of 593.236 amu.  Determi...

A: Emperical formula is the simplest ratio of each constituent elements in molecular formula.  Molecula...

Q: The following data are for the decomposition of dinitrogen pentoxide in carbon tetrachloride solutio...

A: The half-life of a reaction can be defined as the time at which the concentration or the amount of t...

Q: Sample: 4-cyclohexene-cis-1,2-dicarboxylic acid cast film 100 - 80 60 Analyze the IR Spectrum and HN...

A: Give IR spectrum:

Q: 6. What is the molarity of a solution containing 325 g of NaCl dissolved in 750 mL of solution?

A: given, mass of NaCl = 325 g molar mass of NaCl = 58.44 g/mol volume of solution = 750 mL = 0.750 L

Q: For a CH,0 molecule, what is the internal energy predicted to be based on the classical approach for...

A: Internal energy (U)of a molecule is the energy it posses by virtue of its  Rotational state Vibrati...

Q: At some temperature, the Kp for the following reaction is 0.26. If you began with 0.1 atm of NO, 0.3...

A:

Q: Label the reaction profiles below as exothermic or endothermic and use them to calculate the activat...

A:

Q: A gas mixture consists of equal masses of methane (molecular weight 16.0) and argon (atomic weight 4...

A: Number of mole is calculated by dividing given mass with molecular mass. 

Q: The pressure in a 12.2 L vessel that contains 2.34 g of carbon dioxide, 1.73 g of sulfur dioxide, an...

A:

Q: The pOH of a basic solution is 5.63. What is [OH⁻]?

A:

Q: What is the main information you wish to acquire when performing a melting point analysis? A) the pe...

A: Melting point analysis is always done to check the purity of our compound obtained during the chemic...

Q: 13. Given the following thermochemical equation: Mg + Cla) MgCl2(3) 642 kJ + What is the AH for the ...

A: As 642kj energy is evolved in the product side. Therefore, this is an example of exothermic reaction...

Q: A solution contains 0.134 M sodium nitrite and 0.305 M nitrous acid. The pH of this solution is Subm...

A:

Q: Part 2 O See Hir Consider a sample of gas that contains 625 moles of smokestack gas. How many molecu...

A:

Q: One of the half-reactions is 2 N3- → N2 + 6 e How many faradays of electricity are required to pro...

A: For one mole of N2, 6 mole of electron or 6 Faraday electricity is required.

Q: redict the ground‑state electron configuration of each ion. Use the abbreviated noble gas notation. ...

A: The atomic number of Ru is 44 and atomic number of W is 74

Q: NH, a)

A: This is a multi step synthesis reaction . Detail mechanistic pathway is given below

Q: A set of samples from an abandoned industrial site detected a suspected groundwater contaminant at a...

A:

Q: An aqueous solution contains 0.22 M hydrocyanic acid. One Liter of this solution could be converted ...

A: Buffer solution: The solution that resists the change in pH is known as a buffer solution. The buffe...

Q: Ether Cleavage What reagents are necessary to synthesize the molecule below. Pn ме ME MC

A:

Q: How do you call the small peak usually found at the the left of the moelcular ion peak in a mass spe...

A:

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.