.required components in an electrochemical corrosion cell . Two. Four. O Three. O

Q: .48 Copper .52 Oxygen What is empirical formula

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Q: A D B.

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Q: Part A Nitric oxide reacts with chlorine gas according to the following reaction: 2 NO (g) + Cl2 (g)...

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Q: An unknown compound has the following chemical formula: where r stands for a whole number. Measureme...

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Q: ) Polymers are classified into natural and synthetic polymers. (i) Differentiate between the synthet...

A: Properties of polymers: As per our guideline we have to answer first question only.

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Q: Iron and water react to form iron(III) oxide and hydrogen, like this: 2 Fe(s)+3 H,O(g)→Fe,03(s)+3 H,...

A: for a given reaction, 2 Fe(s) + 3 H2O(g) → Fe2O3 (s)+ 3 H2(g) volume of reaction vessel = 3.9 L  

Q: .Types of corrosion are Eight. O Nine. O Seven. Chemical reaction in primary batteries is Not revers...

A: 9 types of corrosion Atmospheric Corrosion Erosion Corrosion Selective Corrosion Uniform Corrosion ...

Q: (b) Calculate the entropy change when two moles of an ideal gas are allowed to expand from a volume ...

A: Given values-> Number of mole=2 mole V1= 1 L V2=10 L T = 27°C =27+273 = 300K  

Q: The thermochemical equation which is associated with AH, the standard enthalpy of formation for acet...

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Q: chemist carefully measures the amount of heat needed to raise the temperature of a 312.0 g sample of...

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Q: (a) Discuss the various types of electronic transitions that can occur in a molecule after absorbing...

A: On absorbing UV radiations, molecules can show various transitions, let us discuss one by one. 

Q: 2. Assign the absolute (R or S) configuration to each stereocenter in the molecules depicted below. ...

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Q: (Q101) Consider the production of phosgene gas from carbon monoxide and chlorine gases which has an ...

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Q: An acetic acid solution at equilibrium is found to have H =6.3 x1012 M at 25°C, what is the pH of th...

A: pH of a solution can be calculated from the concentration of H+ ions.  

Q: a) Please draw a reasonable 'H NMR spectrum for the following molecule. HO

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Q: A mixture of He, Ne, and Ar has a pressure of 28.2 bar at 28.0 °C. The partial pressure of He is 2.7...

A: given :- partial pressure of He = 2.74 bar  partial pressure of Ar = 1.15 bar  total pressure of mix...

Q: write the rate law for the following reactions. (assume each reactions follow an elementary rate law...

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Q: A solution contains 1.47x10-2 M lead nitrate and 1.01x10-2 M silver acetate. Solid sodlum lodide is ...

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Q: (b) What are oxidative addition and reductive elimination steps in a catalytic eycle?

A: 1. Oxidative addition is a process that increases both the oxidation state and coordination number o...

Q: A chemical engineer is studying the following reaction: HCH;CO,(aq)+CH,NH,(aq) → - CH;CO,(aq)+CH;NH(...

A: Qc and Kc are calculate the same way, but Qc is used to determine which direction a reaction will pr...

Q: Write the formulas for the following compounds.

A: Molecular compounds are named with the first element first and then the second element by using the ...

Q: An action will release HOCI to water. Determine expressions for each of the equilibriun concentratio...

A: The answer is as follows:  

Q: Draw the major organic product(s) the following reactions

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Q: For this analysis to be performed, an internal standard of about 0.2–0.3% n-propanol needs to be cre...

A: We'll prepare five standards of ethanol in the range 0.05-0.50 w/v % in water.

Q: Ce Pr Nd Pm Sm Eu 6a Tb Dy Ho Er Tm vo Lu Th Pa u Np Pu Am Cm Bk Cr Es Ma No Lr Write the complete e...

A:   Electronic configuration:  The electronic configuration of an element describes how  electrons are...

Q: The chemical structure of glycerol (CH,O) is shown below. Highlight each atom that is in a hydroxy g...

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Q: 2. Your 2- year old baby brother has a fever. The doctor prescribed a medicine and it should be prep...

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Q: Predict the products of each reaction below. Indicate regiochemistry and stereochemistry when releva...

A: Kmno4 is strong oxidising agent. Over oxidation takes place.

Q: At 483 K, this reaction has a K. value of 0.0481. 2 X(g) + 3 Y(g) =Z(g) Calculate Kp at 483 K. Note ...

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Q: EXERCISE 3.2 Predict the structures of the following ions. Include a description of distortions from...

A: Dear student, since you have asked a question which has multiple subparts according to guidelines we...

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

A: Given values -> Molecular formula = CH3COOH Moles of carbon = 89.1 mole  

Q: ryour units!) 2. 500.0 liters of a gas are prepared at 700.0 mm Hg and 200.0 °C. The gas is placed i...

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Q: What is the pH of a solution made by mixing 1.57E1 mL of 0.100 M NaOH(aq) with 50.0 mL of 0.100 M HC...

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Q: Which one hardness type that remain after boiling process. O Temporary hardness. O Permanent hardnes...

A: Given question is : Which one hardness type that remains after boiling process.  (a). Temporary hard...

Q: What is the name of the major product of the following synthetic scheme? OH 1. CH3CH2NH2, 275 °C 2. ...

A: Secondary amine. see below 

Q: Explain why the dipole moment of ammonia is slightly higher than methylamine.

A: Dipole moment generate due to electric charge and electrongativity difference between atoms. In ammo...

Q: The following molarities were calculated from replicate standardization of a solution: 0.5022, 0.502...

A: Given data :- Set of molarities calculated from replicate standardization of a solution are : 0.5022...

Q: N2(8) + 2H2(g)- given the following thermochemical equations: N2H4(). N2H4) + O2lg) 2H20() + N2(g) A...

A: we have to calculate the enthalpy change for the reaction, N2(g) + 2H2(g) → N2H4(l)

Q: A certain liquid X has a normal freezing point of -4.10 °C and a freezing point depression constant ...

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Q: How many kinds of chemically non-equivalent carbons are there in each of the following compounds? CH...

A: Chemically non-equivalent carbons give different signals in C-13 NMR.  example :- if a molecule has ...

Q: What is the name of the reducing monosaccharide found in the disaccharide shown here но HO H HO OH O...

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Q: statement. (e) Why methyl chloride absorbs at lower wavelength than methyl iodide?

A: Wavelength of   Methyl chloride is approx. 172-175 nm and Wavelength of methyl iodide approximate 25...

Q: (b) What do you mean by enzyme catalysis? Derive Michaelis-Menten's equation?

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Q: (c) State Hess's law by giving a suitable example.

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Q: A voltaic cell is constructed in which the following cell reaction occurs. The half-cell compartment...

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Q: Solution 95% v/v of methanol with .water means that 5 ml methanol in 100 ml water. 5 ml methanol in ...

A: Volume/volume percentage (% v/v) is the measurement of concentration of substance in solution in vol...

Science behind corrosion-test

Corrosion is defined as an activity that transforms refined metals into more chemically stable forms such as oxide, hydroxide, carbonate, or sulfide. It refers to the slow decomposition of things (typically metals); thanks to chemical and/or electrochemical reactions with their surroundings. Corrosion engineering is the science of preventing and controlling corrosion.

Corrosion

Corrosion is defined as an activity that transforms refined metals into more chemically stable forms such as oxide, hydroxide, carbonate, or sulfide. It refers to the slow decomposition of things (typically metals); thanks to chemical and/or electrochemical reactions with their surroundings. Corrosion engineering is the science of preventing and controlling corrosion.