3. In a material that can undergo a positional ordering phase transition, is an ordering transition more likely to occur when the material is cooled rapidly or when it is cooled slowly? Can a disorder-order phase transition change the lattice structure of a material?

Q: A female skater is spinning at 1 rev/s with her arms outstretched so is 3.6 kg/m2. She then pulls he...

A: According to the question, a female skater is spinning at 1 rev/s with her arms outstretched so that...

Q: Compare and contrast GC/MS IR spectrophotometry. TLC spectroscopy, and UV/VIS spectrophotometry Make...

A: Analytical spectroscopy:

Q: 3. Using the percentage equation given in the introduction, if 8.912 g of sand are recovered from an...

A: Percentage of a component in a mixture is given by the formula  % = [ mass of component / mass of mi...

Q: What is the molar absorptivity of cobalt at λmax of copper?

A: The data given is,

Q: reflies flash at a rate that depends on the temperature. At 43°C, the average rate is 3.4 flashes ev...

A: Given : We have to calculate the activation energy .

Q: What is the concentration of copper in mM?

A: The data given is,

Q: Convert the following measurement. 5.8 x 10 x10 3 3 cm ?

A:

Q: Multiple Choice: 1. What is NOT the other name of HCl? A. Hydrogen chloride B. Hydrochloric acid C. ...

A: Q1. Chloric acid (option C).  Q2. Sulfurous acid (option D).

Q: 250. mg of an unknown protein are dissolved in enough solvent to make 5.00 mL of solution. The osmot...

A:

Q: Which is true regarding the Rb-Cl bond in the compound RBCI O it is lonic O t is polar covalent it i...

A:

Q: Arrange in terms of increasing acidic and explain these using partial charges and inductive effects ...

A:

Q: HO.

A: The given compound contains two functional groups such as -OH and olefinic bond. The isomers can be ...

Q: If a laser with a wavelength of 450 nm emits total 7.25 x 10" photons over a given time period, what...

A:

Q: Give the Expanded Structure and IUPAC Name

A: The bond line notation of a molecule inbetween atoms is known as expanded notation of a molecule.

Q: Consider the following reaction: 4 FeS2 + 11 O2 → 2 Fe2O3 + 8 SO2 When 26.62g of FeS2 reacts with 5....

A: Given data: Mass of FeS2 = 26.62 g Mass of O2 = 5.44 g The molar mass of FeS2 = 119.98 g/mol The mo...

Q: 1. Consider the following reaction: CO:(g) + CCl (g) → 2COCL(g) a. Calculate the standard Gibbs free...

A:

Q: A chemistry student is given 1.00 L of a clear aqueous solution at 17 degrees Celsius. He is told an...

A:

Q: According to the following reaction: Si + N2 → Sİ3N4 If 2.00g Si and 1.50 g N2 react: a. Which subst...

A: Since you have posted multiple questions with multiple sub-parts, we are entitled to answer the firs...

Q: lain what is meant by the term 'resolution' in the above statement?

A:

Q: How to calculate the volume at 20 degrees celsius of 695 grams of liquid with density 1.20 g/mL?

A: The mass per unit volume of a substance is known as the density of the substance. The density of a s...

Q: HO OH HO

A:

Q: Multiple hoice: 1. The correct coefficient for the equation KCLO3 --> KCL +02 A. 2,2,3 B. 2,3,2 C. 3...

A: Q1. Option A; (2,2,3). Q2. Option A; (2,1,1,2).

Q: how much energy must be absorbed or released as heat to change 87.0 g of liquid propanone at 25.00°C...

A: The solution is as follows:  

Q: = wavelength a Hz)

A:

Q: What is the mole fraction of HCl in an aqueous solution that contains 44.2 g of HCl and 88.6 g of wa...

A:

Q: e standard Gibbs free energy

A:

Q: solution contains 22.5 g of methanol, CH3OH, dissolved in sufficient water to give a total mass of 1...

A:

Q: molecule has the electronic configuration given as:

A: The valency electronic configuration of this molecule is like a oxygen molecule, may be this molecul...

Q: Calculate the mass of 1.0 mmol nitro ester [2-(diethylamino)ethyl 4-nitrobenzoate] Mw: 266.3 g/mol

A:

Q: 203.77miles/sec is converted to cm/nsec?

A: 1 mile = 1.609 kilometres 1 kilometres= 1000 meters 1 meters= 100 centimetres 1 sec = 10^9 nsec

Q: Copper Amax cobalt|Amax copper 20.00 40.00 60.00 80.00 100.00 oncentration, mM 0.238 0.177 0.382 0.5...

A: Given : We have to calculate the molar absorptivity of copper 

Q: 1. Synthesize compound 3 starting from 1 and 2. HO OBn OH 1 3.

A:

Q: What happens to a strong acid in solution? OIt completely ionizes in solution to produce many OH- io...

A: Acids are those substances which produce H+ ions in aqueous solution.  Bases are those substances wh...

Q: (a) How much work is required to compress 4.99 mol of air at 20.4°C and 1.00 atm to one-tenth of the...

A:

Q: Draw the Lewis structure of PBr,. Include all the lone pairs.

A: Draw Lewis structure of PBr3 ?

Q: Develop a general equation for the standard heat of reaction as a function of temperature for one of...

A: Heat of reaction is calculated as follows Let a general equation-                         aA + bB → ...

Q: Properties of a Compound: 4. Arrange in order of decreasing boiling point: NaF, NaBr , Nal, NaCl.

A: The answer is as follows:  

Q: CH=C-CH2-CH2-CH3 + H2 Pt, Pd, or Ni A) + HBr в) C)

A: The product of the above organic reaction is given below

Q: Intravenous, or IV, solutions used in medicine must exert the same osmotic pressure as blood to prev...

A: Given,  Mass of NaCl, m = 0.90 g  Molar mass of NaCl = 58.5 g/mol  Number of moles of NaCl = 0.90/58...

Q: Which of the following best describes what occurs at absolute zero?

A: Absolute zero is 0K.

Q: Draw two other resonance forms for the ion shown

A:

Q: percent of a 762.5 mL solution that is prepared by dissolving 289.15 g of Ca(N3)2 in water?

A: %m/v = mass of solute ×100/Volume of solution  Using above formula,  %m/v = 289.15 × 100/762.5  = 37...

Q: For the generic reaction below, the rate quadruples when [A] is doubled. When [B] is doubled, the ra...

A: according to the question the rate is doubled when concentration of A is doubled and remain unchange...

Q: What mass of copper (II) nitrate, Cu (NO3)2, is present in 50.00 mL of a 4.55 × 10-3 M aqueous solut...

A: The number of moles of solute  = Molality×Volume (of the solution)

Q: Draw the structures and give the IUPAC name of the compounds that you have draw that meet the follow...

A: Given:

Q: CH2=CH(CH2)4CH3 Give the Expanded Structure and IUPAC Name

A: Expanded structure of CH2=CH(CH2)4CH3 = ?  IUPAC name of this molecule = ? 

Q: why is the synthesis of NH4BF4 conducted under acidic conditions?

A: The synthesis of NH4BF4 conducted under acidic conditions as follows,

Q: Convert the following into moles if they have 25.5 g of the ff: a. Zinc, b. CuCl2 c. KSO4

A: The relation between mass and number of moles of any substance is given by tge relation - Mole = mas...

Q: Draw an extraction flow chart for the extraction of a mixture of organic acid and phenol.

A: In this question we have been provided with a mixture of Organic acid and phenol, now we need to sep...

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.