The standard enthalpy of combustion, A H , of graphite is -393.51 kJ mol-1. Calculate the change in standard internal energy of combustion, A E¿, for graphite. i kJ/mol

Q: Which is the more effective extraction technique, single or multiple extractions? Explain.

A: Multiple extractions are more effective than a single extraction technique. Extraction is a separati...

Q: This is the chemical formula for acetic acid (the chemical that gives the sharp taste to vinegar): C...

A: The chemical formula for acetic acid is CH₃COOH. In each mole of acetic acid, there are;2 Moles of o...

Q: For the reaction N2(g) + 3H2(g) = 2NH3(g) Kp is 2.79 × 10 at 472°C. What is the K for this reaction ...

A: T = 472°C = 472+ 273.15 k = 745.15 k Kp = 2.79 x 10—5    

Q: The equation below is unbalanced. Balance the equation and then answer the question that follows. C5...

A: Balanced equation: The balanced equation can be defined as the chemical equation where the number of...

Q: Blast furnaces extract pure iron from the iron(III) oxide in iron ore in a two step sequence. In the...

A: Multiply by 3: [ 2 C(s) + O2(g) ---> 2 CO(g) ] x 3 ==> 6 C(s) + 3 O2(g) ---> 6 CO(g) Multip...

Q: A Calculate the freezing point of A, in °C, from this data: AH: (KJ/mole) S (J/mole K) A(s) A) Ag) -...

A: Concept: Enthalpy of the reaction (∆Hrxn) : enthalpy of any reaction is difference between the entha...

Q: The molar extinction coefficient of B (MW = 180) is 4x10 lit mol' cm'. One liter solution of C which...

A: Molar extinction coefficient = 4 × 103 lit mol-1 cm-1  Molar mass of B = 180 g/mol Weight of sample ...

Q: c. Balanced formula equation: Ba(OH), (aq) |HCl(aq) Complete ionic equation: Net ionic equation: +

A: Write the balanced formula, complete ionic, and net ionic equations for each of the following acid-b...

Q: Write the anode reaction and cathode reaction for the Fe-Pb voltaic cell that was prepared in Part 2...

A: This is An Galvanic Cell in which Two half reaction takes place simultaneously  . Oxidation and Redu...

Q: Question 30 Given the following standard reduction potentials: Mn2+(aq) + 2e¯ Mn(s) E° = -1.18 V Cd2...

A: Electrochemistry is branch of chemistry in which we deal with oxidation and reduction half cell.

Q: 16. The chemical reaction for photosynthesis is 6 CO2 + 12 H20 + light energy C6H1206 + 6 02 + 6 H20...

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Q: Determine the electronegativity difference for all bonds, whether the molecule is symmetric or non-s...

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Q: Question 28 Which type of half-cell, when used along with a Mn/Mn2+ half-cell, gives the largest cel...

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Q: Consider the reaction when aqueous solutions of magnesium sulfate and lead(II) nitrate are combined....

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Q: As the pKb of a series of weak bases decreases, the strength of their corresponding conjugate acids ...

A: Bronsted-Lowry acid-base theory: The Bronsted-Lowry acid-base theory states that the acid is a subst...

Q: 3. At 300K, the equilibrium for are found to be A = 0.0204 M, B = 0.00501 M, C = 0.0446 M & D=0.0065...

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Q: What are the different Selenium components?

A: Please find your solution below : Selenium is a broad range of tools and libraries which is used to ...

Q: Above what Fe2 + concentration will Fe(OH), precipitate from a buffer solution that has a pH of 8.24...

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Q: In the actual molecule of which this is a Lewis structure, which of the labeled distances can change...

A: We have to tell in the given compound which bonds are change with the time.  

Q: What is the product of the following reaction?

A: The reactants involved are as below: These are acid chloride and carboxylate ion respectively. The ...

Q: Experiment name: Heat of Combustion of benzoic acid and Naphthalene in Bomb Calorimetry Q1:Introduct...

A: Please find your solution below : Calorimetry is defined as the process in which the amount of heat ...

Q: Analyze the H NMR and C NMR for the following compound. Interpret/Label and try to identify the prod...

A: In the given NMR spectrum there are three signals. 

Q: please show every step and be clear, plss

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Q: While touring pressurized water reactors, visitors are often granted access to the steam turbine gen...

A: In pressurized water reactors the heat transfer from core to turbines takes place in two different s...

Q: The molar solubility of AgCl in 6.5 × 10M AGNO3 is 2.5 x 10 8 M. In deriving K, from these data, whi...

A: Given, Concentration of AgNO3=6.5*10-3MMolar solubility of AgCl = 2.5*10-8M As, AgCl⇌Ag++Cl-Solubili...

Q: plants use light from the Sun to drive photosynthesis, a chemical reaction in which liquid water and...

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Q: What is the pKb of the conjugate base of a weak acid that has a pKa equal to 3.52? (temperature is 2...

A: Given that : pKa = 3.52  pKb = ? 

Q: For a process, 153 J of heat was released by the system and 267 Jof work was done on the system. Cal...

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Q: The partial pressure of O2 in the atmosphere at sea level is 21.3 kPa.  What is the partial pressure...

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Q: Chemistry The following reaction occurs when acetyl coenzyme A enters the citric acid cycle. acetyl ...

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Q: At 1280°C the equilibrium constant K, for the reaction Br2(g) = 2Br(g) is 1.1 × 10³. If the initial ...

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Q: The chemical formulae of some acids are listed in the first column of the table below, and in the se...

A: Strong acids are those substances which dissociates completely when dissolved in water while weak ac...

Q: · For the following reaction, C6H14(g) to be -6.2 x 10-3 atm/s. Determine AP(H2)/ At at the same tim...

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Q: What volume of 0.0117 M  calcium hydroxide is required to neutralize 71.50 mL of 0.0132 M  nitric ac...

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Q: For the following Fischer projections: 1) Render its mirror image 2) Represent any element of symmet...

A: We are supposing like to put the mirror at the right side of the molecule and trying to draw the mol...

Q: A. How many mL of a 0.171 M aqueous solution of nickel(II) nitrate, Ni(NO3)2, must be taken to obtai...

A: A.  Given,  concentration of aqueous solution of nickel(II) nitrate, Ni(NO3)2 = 0.171 M  Mass of Ni(...

Q: molarity

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Q: 4-tert-butylhexa Methanol Sodium Cis/Trans- 4-tert-butylcyclo hexanol ne Borohydride H 18 CH OH Mol....

A: Theoretical yield is calculated from balanced chemical equation. For this we need the number of mole...

Q: The reaction by which it goes into solution is: Mg(OH)2(s) Mg2+(aq) + 2 OH−(aq) a. Formulate the ...

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Q: Ammonia is a convenient buffer system in the slightly basic range. (a) What is the pH of a buffer so...

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Q: Predict the reactants of this chemical reaction. That is, fill in the left side of the chemical equa...

A: A balanced molecular equation is one in which the number of atoms of each element is equal on the re...

Q: Which of the following processes represent a decrease in entropy for the system described? Select al...

A: Given statement is :  Which of the following processes represent a decrease in entropy for the syste...

Q: The half life of Carbon-14 is 5730 years. Calculate what percentage of C-14 will remain after 17,190...

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Q: CaBr2 (aq) + K2SO,(aq) write the balanced formula equation.

A: According to the Law of conservation of mass " all atoms of different elements must be equal on both...

Q: Why is it important to know the concentration of any solution that you are using in the laboratory? ...

A: The concentration of a solution is determined by the amount of solute dissolved in the solution.

Q: Gaseous butane (CH,(CH,) CH,) reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide ...

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Q: (Be sure to specify states such as (aq) or (s). If a box is not needed, leave it blank. If no reacti...

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Q: 1. HOCH 2CH2OH cat. TSOH D 2a. CH3M9B (2 eq), Et20 2b. aq NaHCO3 workup За. NaH, THF, 0 °C 3b. BnBr,...

A: The reactant provided is as below: Its IUPAC name is methyl 3-ketopentanoate. The final product aft...

Q: Ke =215 at 22° C. Suppose that 0.04S6 7. For the dimerization of NO2: N204 2NO2 → exists? a) 44.7 mo...

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Q: 5 attempts left Check my work Enter your answer in the provided box. For the reaction N2(g) + 3H2(g)...

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.