Which of the following would release the highest amount of energy when it goes from a gas state to a crystallized state? Why? a. Cao b. Mgo C Sro d. Bao

Q: i) Draw the tripeptide EFH in its predominant ionization state at pH 5. ii) If this tripeptide was p...

A: Given tripeptide: EFH  

Q: I structure bE

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Q: In the reaction, HOH (aq) + (CH3CO2)2Ba (aq) ==> CH3CO2H (aq) + Ba(OH)2 conductivity O the conductiv...

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Q: ny mL of 0.2

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Q: All of the following chemical laboratory practices are correct except A We must avoid weighing corro...

A: During chemical laboratory practices one should always obey some rules and proper way of carrying an...

Q: Complete & balance the equation for the dissociation of HNO, into ions when added to water: HNO, + H...

A: Given reaction HNO3 + H2O ------->  We need to complete the above dissociation reaction along wit...

Q: which class of enzymes catalyzes the given reaction

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Q: 1. Provide two advantages and two disadvantage of flow cytometry analysis. Briefly explain each.

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Q: e mass of

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Q: The gas constant R has the value 287 J/Kg * K for dry air. Using the ideal gas law (P = PdryRT): a.)...

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Q: Find the representatives of the operations of the group Dah, using the valence s orbitals of boron t...

A: Group theory is the study of symmetry, symmetry elements and point groups.

Q: 00 %24 3. Balance the following equation: Ca 3(PO 4) 2( S) + SiO 2( s) + C( s) → CaSiO 3( s) + CO( g...

A: In a balanced chemical equation, All the atoms will be the same in both the side.

Q: но. CH30.

A: Chiral center is the atom which is bonded to four different compounds or species.

Q: Complete the table below for calculating the molar mass of the ionic compound lead(II) fluoride . Fo...

A: A numerical problem based on mole concept that is to be accomplished.

Q: A reaction was carried out the started with aluminum, Al, plus a compound as the reactants that yiel...

A: Given that, a reaction was carried out the started with aluminium, Al, plus a compound as the reacta...

Q: [CH,CI] (mol / I) [H,0] (mol / I) Vel. (mol.l1.s) 0.25 0.25 2.83 0.50 0.25 5.67 0.25 0.50 11.35

A: Answer :-  1)  The order of reaction w.r.t CH3Cl is 1  The order of reaction w.r.t H2O is 2  The ove...

Q: (a) Is it true that 26.3 mpg gasoline translates to 319 g CO:/mi? i. Convert mpg (miles per gallon) ...

A: We have to find out that Is it true that 26.3 mpg gasoline translates to 319 g CO2/mi.

Q: Compare the distances among molecules in the gas,liquid and solid

A: Matter can be classified into mainly three types based on the closeness of the molecules.  

Q: Complete the table below by deciding whether a precipitate forms when aqueous solutions precipitate ...

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Q: Calculate the dead time (tm), based on the following log tr (min) vs. #Carbons plot for the GC-FID a...

A: A question based on analytical chemistry that is to be accomplished.

Q: A beaker contains water up to the 130 mL mark. We introduce an object 38 g of dough and we observe t...

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Q: At a certain temperature, the equilibrium constant, Ke, is 6.12 × 10-3 for the reaction Cl,(g) = 2Cl...

A: The given reaction is : Cl2(g)  ⇌  2Cl(g) Kc for the reaction = 6.12 x 10-3 Mass of Cl2 = 2.69 g Vol...

Q: Does the classification of these compounds include flavonoids,alkaloids and so on? Solve with the st...

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Q: You calculate an interference value of 0.59. What does this number tell you? a.  You will not observ...

A: Crossing over does not occur uniformarly.formation of one chiasma reduced the chances of formation o...

Q: Consider the reaction for the combustion of octane (Cs H18). 2C H18 +2502 16CO2 + 18H2O Part A How m...

A: A) The given reaction for the combustion of octane is, 2C8H18 + 25O2 ---> 16CO2 + 18H2O From the ...

Q: From the given starting material provide a reasonable synthetic route to the following plecule. O,N.

A: Here we have to prepare the given compound from the starting material 2-methylbuta-1,3-diene in mult...

Q: Calculate the energy required to heat 557.0 g of ethanol from 8.0 °C to 18.8 °C. Assume the specific...

A: Given mass of ethanol = 557 gram

Q: Which of the following chemicals is flammable?

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Q: Given that K for H

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Q: ) A 1.20 gram sample of ammonium phosphate is dissolved in 100. mL of water. The solution is poured ...

A: The balanced equation is 2(NH4)3PO4 (aq) + 3 Mg(NO3)₂(aq) --> Mg3(PO4)₂ (s) + 6NH4NO3(aq) Net ion...

Q: What volume of hydrogen gas at STP is produced from the reaction of 46.51 g of Mg? Balance the equa...

A: Here we have to determine the volume of hydrogen gas produced at STP by the reaction of 46. 51 gram ...

Q: Determine the number and label the chiral centers in the molecule

A: Chiral carbon is asymmetric centre which is having four different groups surround the carbon atom.

Q: At an elevated temperature of 700 K, 0.682 mols of molecular hydrogen and 0.440 mols of molecular br...

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Q: Calculate the ionization energy of the lithium atom in the steady state and then determine which par...

A: Ionization energy is calculated using the expression: E=13.6Z2n2eV where Z is the atomic number and ...

Q: Kr has 36 protons and 36 electrons. Give the symbol of two anions and two cations that are isoelectr...

A: Krypton(Kr) belongs to the noble gas family, i.e. group 18. It's atomic number is 36 so it has 36 pr...

Q: Just nitrosyl bromide NOB1 (0.64 mol) was placed in a 1.00 L flask. When heated it readily decompose...

A: Nitrosyl bromide, NOBr decomposes into nitrogen monoxide, NO, and molecular bromine, Br2. The equili...

Q: The concentration of H3O+ ions in a brand of vegetable juice is 7.3x105 M. What is the pH OF the jui...

A: The concentration of H3O+ ion in vegetable juice = 7.3 × 10-5 M  pH of the juice = ? 

Q: Which one of the following statements is false O One molecule of HBr will yield one H+ ion(s) One mo...

A: We have to select the false statement. The given statements are  One mole of HBr will yield one H+ ...

Q: A compound contained 4.6g Na, 2.8g N, 9.6g O. Find the empirical formula. (RAM data Na = 22.99, N = ...

A: In empirical formula problem first we determine mole ratio of given atom

Q: 6. How would you synthesize the enone below from a crossed Aldol reaction?

A: We have to synthesis the given enone by cross aldol reaction. Cross aldol reaction involve of two di...

Q: What is the molarity of a solution with 3.71 g of Sodium Nitrate forming a 446mL solution? Roun...

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Q: *00 0.0 A 0.370-mol sample of a metal oxide (M2O3) weighs 55.4 g. How many moles of O are in the sam...

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Q: sodium hydrogen carbonate (NaHCO3) was reacted with an excess of 5.00 M hydrochloric acid (HCI). The...

A: Reaction 1: NaOH (s) + HCl (aq)----> NaCl(aq) + H2O(l) Reaction 2: NaOCO3 (s) + HCl (aq)----> ...

Q: All of the following chemical laboratory practices are wrong except A we should dispose of all of ou...

A: Answer: This question is based on precautions one should take care of while doing activities in chem...

Q: 2. Write down the chemical reaction for the heating of the hydrated form of copper II sulfate. The t...

A: Mass of hydrated copper sulphate = 4.1g  Mass of anhydrated copper sulphate = 2.6g  Mass of water = ...

Q: A sample of an alkali metal that has a BCC unit cell is found to have a mass of 1.000 g and a volume...

A: Given : Mass of alkali metal = 1 g Volume of alkali metal = 1.0298 cm3 Volume of hydrogen = 539.29 m...

Q: We have a HCl molecule, with H and Cl have atomic mass of 1.0 and 35.5 amu, respectively. The force ...

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Q: Complete this reaction: He Br He + He + p

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Q: The density of mercury is 13.35 g/cm3. Experimental results gave the following data: 10 4.5 g/cm3 16...

A: Given,  True value of density = 13.35 g/cm3  Experimental results are : 14.5 g/cm3,  16.65 g/cm3, 15...

Q: How many grams of water are produced when 47.9 g of hydrogen peroxide (H2O2) decomposes into oxygen ...

A: Using mole concept from balanced chemical equation,easily obtained how much reactant is used and how...

Crystal Lattices and Unit Cell

Consider a crystal. The regular and repeating pattern of constituent particles is the most distinguishing feature of crystalline solids. A crystal lattice is formed when these particles are replaced with representative points. The three-dimensional arrangement of constituent particles is known as a crystal lattice. Unit cell is that the smallest portion of a space lattice which when repeated in several directions, generate the whole lattice. Unit cell is a building block of a lattice. It is the smallest unit of cell.