Kc

Q: Calculate the standard enthalpy of formation of Caco3 at 298K in kļ/mol from the foll CaO (s) + CO ,...

A: Given reaction is : CaO (s) + CO2(g) →CaCO3 (s)                ; ∆H298o= - 42.85 Kcal/molCa (s) + 12...

Q: Draw the structure of the following compounds using line angle structure formula. 5-chloro-1-ethylsp...

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Q: The liquid-liquid extraction is the classical technique in chemistry to isolate a target component f...

A: Liquid-liquid extraction is also known as solvent extraction in which compounds are separated based ...

Q: The reaction of finely divided aluminum and iron(III) oxide, Fe2O3, is called the thermite reaction....

A: Given,  Mass of Al = 500.0 g  Mass of Fe2O3 = 500.0 g  Mass of Fe produces = Actual yield of Fe = 16...

Q: From benzaldehyde, compunds of 2 carbons or less, and any inorganic reagent you want synthesize the ...

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Q: Two elements A and D are present in group -1 of periodic table. A element is in 1st period and D ele...

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Q: Indicate whether each of the following solutions is acidic, basic, or neutral: a. [H₃O⁺]= 2.0 x 10⁻...

A: There various parameters to know about acidity,basic and neutral.  Acidity means there must be H+ io...

Q: Consider the given liquid-vapor diagram:   What is the estimated boiling point of pure component B...

A: (A) Estimated boiling point of pure component = 372 K Mole fraction of A versus temperature plot is ...

Q: Estimate the enthalpy change for the reaction 3 H2C=CH2 (9) → C6H12 (2) using the pond energies inTa...

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Q: Natural gas is mostly composed of methane (CH4). In 6.07 g of CH4, how many millimoles of CH4 are pr...

A: Given, Natural gas is mostly composed of methane. Weight of methane =  6.07 g Molar mass of methane ...

Q: Isomers with the same boiling point and molecular weight but have different boiling points how is th...

A: Given statement is : Isomers with the same boiling point and molecular weight but have different boi...

Q: The enthalpy of combustion of benzoic acid (C66H55COOH) is commonly used as the standard for calibra...

A: Given,  Enthalpy of combustion of benzoic acid = -3226.7 kJ/mole  Given mass of benzoic acid = 2.851...

Q: 4. The following data were obtained in calibrating a calcium ion electrode for the determination of ...

A: a) Answer - the pCa vs potenttial data are plotted below as scatter point . Aline is drawn through t...

Q: Which of the following is/are TRUE regarding instrumental methods of analysis? these methods can mea...

A: Ans. Instrumental method of analysis: (a) In instrumental analysis  much less sample can be used, lo...

Q: Science in Everyday Living Let Us Apply A. Identify the following substances based on their classifi...

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Q: A solution of 0.10 M Sulfate ion is available. What is the normality of this solution when used in t...

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Q: explain why certain areas have more air pollution than others.

A: More than 80% of people living in urban areas that monitor air pollution are exposed to air quality ...

Q: Given the following reactions N2(g) + 202(g) → 2NO2(9) AH = 66.4 kJ 2NO(g) + O2(g) → 2NO2(g) AH = -1...

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Q: Question 7 II в Which part in the figure can be a photovoltaic cell, phototube or photomultiplier tu...

A: Photovoltaic, phototube and photomultiplier tube used as detector in spectrophotometer

Q: 3) What will be the products of these reactants? A. В. H2O2

A: This is a type of oxidation reaction which is known as ozonolysis.

Q: Draw the three physical states of water (solid, liquid, and gas). Illustrate their positions and beh...

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Q: 1) Draw the structures corresponding the following names: A. trans-Cyclobutane-1,2-dicarboxylic acid...

A: A) Trans-cyclobutane-1,2-dicarboxylic acid- B) 4-Methylpenranoic acid -

Q: Construct a (011) within a unit cell.

A: A lattice plane in a unit cell is those plane whose intersections with the lattice are periodic.

Q: The concentration of acetic acid (pKa =4.75) in vinegar is about 1.0 M. With this information, what ...

A: Acetic acid is a weak acid and it does not dissociate completely into ions. The pKa of acetic acid i...

Q: What property of water refers to water's ability to form a thin film on the surface of lakes and pon...

A: What property of water refers to water's ability to form a thin film on the surface of lakes and pon...

Q: A solution containing 0.584 mole/L of CUSO4 and had a 0.510 absorbance reading in a 1.0cm cell at 52...

A: We have to predict the molar absorptivity.  

Q: Systematic naming

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Q: calculate the molarity. 24.5 g of sulfuric acid, H2SO4, dissolved in 255 cm3 of water.

A: Molarity of a solution can be defined as the number of moles of solute dissolved per litre of soluti...

Q: Question 4 A solution containing 0.584 mole/L of Cuso4 and had a 0.510 absorbance reading in a 1.0cm...

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Q: The reaction between aluminum and iron(III) oxide can generate temperatures approaching 3000°C and i...

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Q: 6. Consider the following reactions: a. Hgm → Hg) b. 30a(g) → 203(®) c. CUSO, 5H2(s) → CuSO4te) + 5H...

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Q: a) (C2H5)2Be + Be(CH3)2 b) R2BH + R-CH=CH2 c) MgEt2 t-BUOH

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Q: It uses flame to atomize samples to detect traces of metals. Atomic Absorption Plasma Emission O UV-...

A: Atomic Absorption:  The technique uses basically the principal that free atom(gas) generated in an a...

Q: Which of the following statements best describe a minimum azeotrope? 1. Minimum azeotrope boils at h...

A: Azeotrope can be defined as mixture of liquids that has a constant boiling point The boiling point o...

Q: で三C-C=c一

A: Rule of IUPAC- 1) Longest chain as parent chain. 2) Numbering start from those side where more prior...

Q: 2) Draw the structures corresponding to the following IUPAC names: A. Triethylamine B. N-Ethyl-N-met...

A: We have to draw the structure of the following compounds:-  A. Triethylamine B. N-Ethyl-N-methylcycl...

Q: PART 1: Write the half - reaction of each redox reaction and determine the oxidizing and reducing ag...

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Q: A solution containing two different fluorescent compounds, Ben and Jerry, were analyzed for their in...

A: As λ max is a wavelength where sample of compound  of same concentration shows maximum absorbance in...

Q: What is the concentration of the undiluted KMNO4 solution? 0.4872 g/L 6.872 g/L 0.6872 g/L 1.6872 g/...

A: Given

Q: 1. 5-chloro-4-cyanopentanoic acid 2. 3-isopropyl-6-oxohept-3-enal 3. 3-(cyclobutylmethyl)cyclohexan-...

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Q: What will be the composition of the vapor when a mixture containing 0.30 of A was subjected to fract...

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Q: this reaction releases heat, what direction will the equilibrium shift when: 1. the amount of N_2N2...

A: A catalyst can be defined as the substance that increases the rate of reaction but does not affect c...

Q: Industrially, vanadium metal, which is used in steel alloys, can be obt oxide with calcium at high t...

A: Theoretical yield of a product is calculated by the limiting reagent of the reactant as maximum amou...

Q: Methanol (CH3OH) burns in air according to the equation 2CH;OH + 30, → 2CO, + 4H,O If 229 g of metha...

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Q: Calculate ∆U, ∆H, q, and w for compressing 2 mol of an ideal gas from 1 bar to 10 bars at 25°C given...

A: An isothermal process is a change of a thermodynamic system, in which the temperature remains consta...

Q: II в D Which part in the figure can be a photovoltaic cell, phototube or photomultiplier tube? O A B

A: Photomultiplier tube- These are the sensitive detectors of light used for multiplication of electron...

Q: What is the name of the major product formed during the reaction between benzoyl chloride and phenol...

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Q: A solution of potassium permanganate of unknown concentration was analyzed against a standard of var...

A: Given

Q: 1) Name the following amines: 1) CHs 2) (CH3), CH NH2 3) 4) H- :NH2

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Q: O A 466-g sample of water is heated from 8.50 °C to 74.60 °C. Calculate the amount of heat absorbed ...

A: NOTE: Since you have asked multiple questions, we will solve the first question for you. If you want...

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.