What is the LUMO of the Li₂ molecule?

Q: What are microelectrodes

A:

Q: The magnitude of the magnetic moment of CrCl3 is 3.81μB. How many unpaired electrons does the Cr…

A: Number of unpaired electron can be calculated from the following equation Given,

Q: How to calculate octahedral voids ?

A: Given question is : How to calculate octahedral voids = ?

Q: Correlate symmetry with chirality of objects and molecules

A: Chiral  molecules are Asymmetric  in nature having no plane or axis of symmetry  .

Q: draw the vector diagram for CO2

A: Introduction:  Dipole moment is a product of charge and distance between the charges.it is…

Q: Sketch portions of a linear polystyrene molecule that are (a) isotactic, (b) syndiotactic, and (c)…

A:

Q: Define cohesion

A: Cohesion or cohesive force is the property by which molecules stick together. It is attraction of…

Q: In which of these substances is significant hydrogen bonding possible: methylene chloride 1CH2Cl22,…

A: From the given substances, which will show hydrogen bonding has to be given.

Q: 22. What is the stationary phase column packing material for Q 21?

A: Chromatography is the method that is used to separate the components of the mixture. It has two…

Q: Calculate the anion gap, is it in the normal range? Na 132 mEq/L CI 98 mEq/L HCO3 22 mEq/L O12…

A: The anion gap measures acid-base balance using the concentration of anions, which are not measured.…

Q: The molecule with the smallest HOMO-LUM0 gap:

A:

Q: he radius of gyration of a long chain molecule isfound to be 7.3 nm. The chain consists of C- C…

A:

Q: Select and view the the Ball and Stick model, Na* Coordination. By how many close Cl ion neighbors…

A: Given; unit cell is Simple cubic unit cell.

Q: If pk1= 2.34 and pk2= 9.60, then the isoelectric point pl is? A. 5.87 B. 5.97 C. 3.67 D. 4.56

A: The isoelectric point (PI) of amino acid with one carboxylic acid and one amine group can be…

Q: ctrons in a nonpolar cov molecule are shared... Electrons are not shared Evenly Unevenly

A: Covalent Bonds are formed by sharing of Electrons. Covalent bonds are of 2 types   1. Polar…

Q: What is band broadening? Explain the phenomenon of eddy diffusion.

A: These are terms with reference to chromatography:

Q: How many total degrees of freedom does C8H10N4O2 have?

A: The formula for calculating degree of unsaturation is = (2C + 2N -  X -  H) / 2 Where C = number of…

Q: What is the best way to differentiate between Cohesion and Adhesion?

A: When to different type of molecules attract each other then it is known as adhesion. Whereas the…

Q: OH OH Br. Br 2 Br2 Fe NO2 NO2

A: In disubstituted benzene electrophile goes to according  to Ortho- para directive group.

Q: What is the main limitation of ceramic- inorganic membranes? O Stability O Fouling resistance O…

A: Ceramic Inorganic Membranes: The synthetic ceramic membranes made up of inorganic materials They…

Q: Describe what happens to the anions in a doublereplacementreaction.

A: What happens, to the anions in a double replacement reaction has to be given.

Q: Consider a peptide group (shown below) where the locations of the atoms (in picometers) relative to…

A: The answer of thie is last option (E) i.e. 0 (zero) because the peptide group is non-polar . The…

Q: Properties of ABE Materials 1.) prediction methods in determining density

A: DETERMINING DENSITY density is  mass per unit volume. If D is density of body e of mass M and volume…

Q: Determine the linear and planar densities of the (111) direction of zinc (HC structure).

A: HCP and FCC has similar densities.

Q: Does hexasulfer have a higher or lower entropy than C6S6?

A: Entropy It is the measure of randomness or disorder in the system. If randomness increases, entropy…

Q: Rationalize the fact that hydrogen bondinghas not been observed between CH4 molecules.

A: When Hydrogen is attached to a highly electronegative atom, the electrostatic force of attraction…

Q: Does FeSe have a larger band gap than ZnSe?

A: Antiferromagnetism, the magnetic moments of atoms or molecules, usually related to the spins of…

Q: The radius of gyration of a long chain molecule is found to be 7.3 nm. The chain consists of C-C…

A:

Q: Assume the energy of hydrogen bonds per base pair to be 5.86 kJ-mol-1. Given two complementary…

A:

Q: A crosslinked copolymer consists of 59 wt% ethylene (C2H4) repeat units and 41 wt% propylene (C3H6)…

A: Since the weight % is given and we need mole % to find the fraction. Assuming we have 100 gm of…

Q: The optical rotation is the angle through which the plane of polarization is rotated when polarized…

A:

Q: 8. a disintegration fraction in the orthorhombic structure of the volumetric center?? APF=?

A: Atomic packing factor (APF) is defined as the ratio of the total sphere volume of atoms in unit cell…

Q: The polypropylene (repeat unit CH₃CHCH₂) in a plastic toy has a molar mass of 2.8X10⁵ g/mol and a…

A: Here poly propylene  is a polymer having propene as a monomers. The monomeric unit added itself to n…

Q: The closed structures ccp and hcp have the same number of coordination. Illustrate the difference in…

A: HCP and CCP

Q: What are the precautions during the processing of making salted eggs

A: Concept- Salted eggs are produced by brining eggs in saturated saline or by coating eggs with soil…

Q: junctional group

A:

Q: Why can I have SF6 but not add 6 to PCl and get PCl6?

A: Valence electrons :-  The number of electrons present in the outermost shell of an atom are known as…

Q: At 0 °C, the molar polarization of a liquid is 32.16 cm3 mol−1 and its mass density is 1.92 g cm−3.…

A: Given: Molar polarization of the liquid = 32.16 cm3 mol-1 Mass density=1.92 g cm-3 Molar mass=85.0 g…

Q: What is the most prominent IMFA/s present when water forms beaded droplets on a waxy surface?

A: IMFA : Intermolecular forces of attraction

Q: Distinguish the alignment of molecules for the following liquid crystals: (i) Nematic liquid…

A: The liquid crystal are tend to be in ordered pattern as s result these crystal exist in three…

Q: t 25∘C, how high will water rise in a glass capillary tube with an inner diameter of 0.75 mm? For…

A: Rise in the tube , h = 2TCosθρrg θ = 0o contact angle will be zero since the water has to rise…

Q: What is the 3-dimensional drawing of this structure?

A: Note: Since  you have posted question with multiple parts, we will solve only first three part for…

Q: Explain the relationship between chain symmetry and density of polymers.

A: Chain symmetry affects the polymer density as follows.

Q: Water rises in capillar tubes because A. cohesion is greater than adhesion B. adhesion is greater…

A: Capillary action can be defined as the flow of a liquid into a narrow tube. The liquid flow in…

Q: iii. Given the copper ion radius = 0.74 Å and the chloride ion radius = 1.81 Å, does the…

A: