Calculate the higher heating value of liquid octane.

Q: where did you get the 49.3% from?

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Q: Q6/ 15 mL of 0.03 M Pb(NO3)2 is added to 20 mL of 0.2 M NaCl. Predict if precipitate of PbCl2 will…

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Q: To what weight of AICI3 would 0.280 g of AgCl correspond? Atomic weights for Ag = 108, Cl = 35, Al =…

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Q: Q1:- what is the solubility (s) for Ag3PO4, if you know that Ksp for Ag3PO4 = 1.4 x 10-8 ? Q2:- what…

A: #Q.1: Given the Ksp of Ag3PO4(s) = 1.4*10-8  Ag3PO4(s) when dissociated in water forms 3 Ag+(aq) and…

Q: 1. The volume of a gas sample at 20 °c is 2 L. At what temperature should the gas be to increase the…

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Q: Determine the osmotic pressure at 50C if the mole fraction of the solute is 0.125 and the vapir…

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Q: Method 1. You are provided with NaCl with the addition of about 1:10,000 parts m-cresol purple. The…

A: Molarity is a concentration term that represents the number of moles of solute present in 1000 mL of…

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Q: Draw the titration curve for Cys-Pro, starting from the most protonated form to the least protonated…

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Q: A₂H₂(g) + 6x (g) -2 AX₂(g) + 6 HX(g) A and X are unknown elements. When the reaction given above is…

A: We need to determine enthalpy change for converting H3AO3 from solid to gaseous state.

Q: Homework Q1:- Find the external work done by the system in kcal, when 10 kcal of heat is supplied to…

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Q: According to the first image, if an unknown copper metal compound, has 37.2% Cu then it is most…

A: percentage of copper in copper salt

Q: What mode of chromatographic separation (RPLC, NPLC, HILIC, SEC, IEX) is best used for the specified…

A: MSG is used in food as taste enhancer. Generally it is added in soup types of food.

Q: SO Uя + НО

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Q: 1. Write the chemical reaction of amino acid when it can act as amphoteric molecule. + HO- H₂N COOH…

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A: Given: Specific heat of solution = Specific heat of water = 4.18 J/g.K Initial temperature of…

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Q: 40. What is the role of H+ ions in the nucleophilic substitution of alcohols using hydrogen halides?…

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Q: //Ethane (CnH2n+2 ) is burned with atmospheric air. The analysis of the products on a dry basis is…

A: Given in following question ethene is burned with atmospheric air given 1.CO2 =9.7% ,O2=1.7%…

Q: True or False 1. Benzopyrene has a direct pathway for causing cancer thereby allowing it to bypass…

A: 1)Benzopyrene has a direct pathway for causing cancer thereby allowing it to bypass any catabolic…

Q: Q2 // For the reaction bellow, find the mole fractions of all spices. If KP=0.3 A 2B + C

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A: The balanced chemical equation for the formation of Grignard reagent is: Bromobenzene(C6H5Br) +…

Q: Ammonium acetate (CH3COONH4) is also a salt of weak acid (CH3COOH) and weak base (NH4OH). The Ka and…

A: Option b is correct. This is because on hydrolysis ammonium acetate produces ammonium hydroxide and…

Q: A student made a sketch of a potential energy diagram to represent a reaction with a -AH value.…

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Q: Using the arrow, write down the organic reaction below including 1. oxidation insertion of Lithium…

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Q: Ethyl acetate, acetate and ethanol were added to water solution in concentrations of 0.3M and left…

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Q: A solution consists of 0.020 mol.kg-1 KCl(aq) and 0.035 mol.kg-1 Ca(NO3)2(aq). For Cd(NO3)2(aq),…

A: Given The solution consists of 0.020 mol.kg-1 KCl(aq) and 0.035 mol.kg-1 Ca(NO3)2(aq) We have to…

Q: Fill in the information missing from this table. nuclide protons neutrons 0 0 129 185 10 0 26 28 75…

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Q: The viscosity of Cl₂ gas at 293 K and 1.0 atm is 120 up, using these data, what would be the…

A: The expression to calculate the collisional cross-section of a molecule is: σ = 1 / 3 [(8RT / πM)1/2…

Q: 14.23 Below are mass spectra for four different compounds. Explain whether each of these com- pounds…

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Q: 22. In the titration of a solution of Sr(OH)₂ with HCl, the mole ratio of hydroxide ions to…

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Q: SO₂H HNO, (1 eq.) H₂SO4 0 °C HNO, (1 eq.) H₂SO4 0 °C

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Q: Explain

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Q: Calculate the number of moles of oxygen entering the combustion of the following fuel with air if…

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Q: What is the name of this ion? Cr₂O7²- Note: You must include the word "ion." CN [C=N]] cyanide ion…

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Q: What is the correct name for the following compound? H.C. Select one: O a. m-ethylacetophenone Ob.…

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Q: Why is it necessary to store the prepared lysates in a very low temperature?

A: necessasity to store the prepared lysates in a very low temperature.

Q: Q1:- Find the external work done by the system in kcal, when 10 kcal of heat is supplied to the…

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Q: 5.66 A mixture contains equal amounts of compounds A-D. a D C B A a. Which compounds alone are…

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Q: volume

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Q: A is a radioactive substance with a half-life of 2 hours. B is a radioactive substance with a…

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Q: Consider the operation below. (0.523) (1.2161 -0.99) + (2.648) (84 - 81.98) 0.87 How many…

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Q: Determine the freezing point and boiling point of the solution. (Assume density of water = 1.00…

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Q: Control Rods 00 00 Reactor Core Reactor Supercritical Water D. SCWR Supercritical-Water-Cooled…

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Q: isomers : Brom-3-methylpenbare hasthree 1 - Bromo 3-methylpentang 2- Bromo -3-methylpenbare, Bromo…

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Q: 1.3 3 (ii) In the Haber process for the production of ammonia the following reaction occurs: N2(g) +…

A: 1.3 3(ii) Given that, the Hebar process for the production of ammonia is  N2g + 3H2g ⇔ 2NH3g…

Crystallography

Crystallography is the category of science that focuses on the atomic and molecular arrangements with their bonding constituting the crystal structure. It is derived experimentally and originated in the year 1912. It is a combination of two words; those are crystal, meaning a cold drop, and graph, meaning writing.