Fullerenes were discovered earlier than graphene and led to the Nobel Prize in Chemistry for Curl, Kroto and Smalley in 1996. Describe how the structure of fullerenes is related to the structure of graphene and outline how fullerenes are formed experimentally.

Q: What is electron-domain geometry?

A: Electron domain geometry is a 3D structure of a chemical species, which is based on the total number…

Q: The bond angles in the nitrite ion, nitrogen dioxide, and the nitronium ion (NO2+) are 115°, 134°,…

A: The Lewis electron dot structure for given molecules are determined by first drawing the skeletal…

Q: Why does structure formation in nature rely occur on the nanoscale? Select one:

A: The properties of the matter can be observed based on the size of the particles. The physical…

Q: Graphene is a new material made from carbon atoms. It is the thinnest and strongest material known.…

A: In this question, we have to answer why Graphene is strong and conducts Electricity. Also, we have…

Q: Allene, CH2 “C “CH2, has the structure shown below. Explain how the bonding in allene requires the…

A: Structure of allene. Carbon position 1 and 3 have sp2 hybridisation. Carbon position at 2 is sp…

Q: Write the hybrid types of carbon, nitrogen and oxygen atoms in the following compounds

A: Given:

Q: Classify O2 and N2 as either paramagnetic or diamagnetic. explain your answer by completing the…

A:

Q: What is graphene? Why is graphene unique?

A: Graphene is an allotrope of carbon. The carbon atoms in the graphene structure are present in a…

Q: onsider peroxynitrite (chemical formula: ONOO−), a structural isomer of the nitrate anion. It is…

A: The structure of a compound guides its bond lengths, bond angles, and other properties.

Q: It might seem that a square-planar geometry of four electron domains around acentral atom would be…

A: Square planar geometry is arises when there are four bonds and two lone pairs on the central atom in…

Q: 5. Considening your answers to the previous three questions, explain why CO, is not bent? 6. Explain…

A: 5) Carbon has 4 electrons in its outermost shell and needs four electrons to complete its octet.…

Q: (a) Explain bonding of methanol in terms of hybridization.

A: Atoms have atomic orbitals in which the electrons are placed. These atomic orbitals can mix together…

Q: Which is the bonding and which is the anti-bonding orbital? Describe the differences in these two…

A:

Q: B. Write the molecular geometry of the following two structures:

A: Molecular geometry is used to represent the molecule in the three-dimensions.

Q: What are quantum numbers and how do they relate to energy levels? How does the Band Theory of Metal…

A: Introduction: There are four types of quantum number for explaining an electron position in an atom…

Q: Which of the molecules are linear?

A:

Q: A 0.325 g sample of a gaseous hydrocarbon (compound containing carbon and hydrogen only) occupies a…

A: Given: The given mass of, (m)=0.325 g The volume ,(V)= 193 mL=0.193 L. The temperature,…

Q: How many electron groups does the central atom of CH2O have according to VSEPR theory?

A: Electron group consist of - Lone pair  Single bond  Triple bond

Q: Why does the real structure have a smaller bond angle than the model structure?

A: According to the given information, Bond angle of real structure of H2O molecule = 104.5° Bond angle…

Q: Why does structure formation in nature rely occur on the nanoscale?

A: In this question we have to select one option according to structure formation in nature rely occur…

Q: what is the order of bond breaking and bond making ?

A: A chemical reaction is a chemical change in which the reactants react among each other and form…

Q: How relevant is the Lewis Dot Structures to VSEPR Geometries?

A: The Lewis structure is the representation of valence shell electrons in a molecule. It describes the…

Q: Draw a Lewis structure for diimide, H-N=N-H, explain how the Lewis structure is drawn. Then, using…

A:

Q: Indicate the hybridization of the C, O, and N atoms in each of the molecules.

A: Tetra valency of carbon with single bonds exhibit SP3 hybridization, double bonded carbon SP2 and…

Q: Using Valence Bond Theory,NOT VSEPR, thoroughly show how silicon is able to form four identical…

A:

Q: Describe the VSEPR Theory?

A: VSEPR theory or valence shell electron pair repulsion theory is a model that is used to predict the…

Q: MCQ 139: The arrangement of CH, molecules are A. lincar B. tetrahedral C. hexagonal D. trigonal

A: The arrangement of methane molecules are in

Q: . Sulfur forms the compound SH, with hydrogen. kA O (a) Write the electron configuration of the…

A: "Since there are multiple sub-parts in this question and it is not mentioned that which one has to…

Q: \structure of atom is depends on three components.‎ True False

A: Since you have posted multiple questions, the answer for first question is given below. Kindly…

Q: Use the molecular orbital diagram shown to determine which of the following is paramagnetic.

A:

Q: Sketch the three-dimensional structure of the Hydrogen carbonate ion. Clearly indicate the…

A: The electronic geometry and shape for the compounds are to be examined by the VSEPR theory.

Q: How does a trigonal pyramid differ from a tetrahedron so far as molecular geometry is concerned?

A:

Q: Structure of the Bis-( dimethylglyoximato) nickel(II) (write the C.N , geometry type):

A:

Q: Answer the following questions about graphene: a.Why do the bonded carbon atoms form a hexagonal…

A: Graphene is a form of carbon, which on repeating forms graphite.

Q: The four (4) methods of bonding between the atoms are: - Ionic, Covalent, Metallic, and Van der…

A: The ionic bond is an electrostatic attraction force, formed between the ions and it is a strong…

Q: Why are Lewis dot structures used to predict the three dimensional shape of molecules?

A: Lewis dot structures do not predict the three dimensional shape of molecules but it gives the…

Q: For Carbon B (CB) and nitrogen (N), draw orbital energy diagrams showing the orbitals involved in…

A:

Q: Distinguish between the two allotropes of carbon.

A: Allotropes are different forms of an single element. Carbon two forms  Are Graphite and Diamond

Q: Question 22 of 39 In the molecule below, predict the geometry and hybridization of the circled atom.…

A:

Q: Explain history ,structure,properties ND structure of graphene

A: Graphene is an one of the allotrope of carbon. It exists as a two dimensional planar sheets.

Q: Which of these molecular shapes do you expect for the SF6molecule?

A: Since SF6 molecule is of type AB6 as S has only 6 valence e- and all of it is used in making bond…

UV Visible Spectroscopy

Spectroscopy refers to the absorption or emission of light or other radiations by matter. When a substance or chemical absorbs light or radiation, they reach an excited state followed by de-excitation or emission of the light or radiation forming distinct spectra. UV-visible spectroscopy or  ultraviolet-visible refers to the absorption and emission in the ultraviolet and visible regions of the electromagnetic spectrum.