Which of the following does not obey Hund's rule? K 1s² 2s² 2p 3s² 3p6 4s¹ Ca 1s² 2s² 2p 3s² 3p6 4s¹ 3d¹ Si 1s² 2s² 2p 3s² 3p² S 1s² 2s² 2p 3s² 3p4

Q: CIOH140 Problem 12 3 ppm, 8 1 6

A: The question is based on the concept of organic spectroscopy. we need to analyse,  interpret the…

Q: n the equilibrium constant lab, you measured a molar abosorptivity for Fe(SCN)2 to be 5,000 M¹, when…

A: If, in the equilibrium constant lab, you measured a molar abosorptivity for Fe(SCN)2+ to be 5,000…

Q: Advance Study Assignment 1. Circle one of the following formulas that is correctly written as an…

A: This question belongs to chemical Bonding. As per Bartley’s question & answer guidelines I can…

Q: For further identification, the products from reactions b(i) and b(ii) above are mixed individually…

A: It is a follow up question.

Q: The vapor pressure of chloroform is 173.11 mm Hg at 25 °C. A nonvolatile, nonelectrolyte that…

A:

Q: What is conjugate pairs? Can you give me an example of conjugate pairs?

A: Define conjugate pairs with example ?

Q: Suppose a 250. mL flask is filled with 1.4 mol of I₂ and 0.10 mol of HI. The following reaction…

A: The volume of the flask = 250 mL = 0.250 L (1 L = 1000 mL) Number of moles of I2 = 1.4 mol Number of…

Q: Estimate the relative uncertainty for the measured quantity R according to the following equation: R…

A: To calculate the relative uncertainty for the following equation:  R = 157±25-59±41220±108+77±11

Q: Tag all the carbon atoms with pi bonds in this molecule. If there are none, please check the box…

A: The covalent bond is formed by the overlap of the atomic orbitals between the atoms of similar…

Q: What are/is the neccesary reactant for the reaccion? OH

A: Gilman reagent is a lithium organocuprate prepared from an alkyl/aryl halide in two steps. At first,…

Q: O Macmillan Learning At a certain temperature and pressure, I L. of CO, gas weighs 1.15 g. What is…

A:

Q: The original concentration of a solution is 200 mg/dL. The solution was diluted 1:5. Then one part…

A:

Q: (c) I2(s) + CaCl2(aq) → (d) Mg(s) + A1(NO3)3(aq) →>>

A: According to reactivity series the metal which is present above displaces metal from its salt…

Q: 7. 8 Q2. (4) CH3 a H CH₂O. CH₂OH

A: Organic reactions are those in which organic reactant react to form organic products. In the given…

Q: hello i need help with this question. For a single galvanic cell based on the reaction:…

A:

Q: Consider the reaction: A → B. Use the below data to determine the first half-life for experiment 1.…

A:

Q: Give the structure that corresponds to the following molecular formula and ¹ H NMR spectrum: C-H₁0:8…

A: Given molecular formula of the compound is C5H10  1H NMR spectrum gives a peak at δ = 1.5  singlet

Q: Predict the products from crossed Claisen condensation of the following pairs of esters. Indicate…

A:

Q: 3. 200 mL of 2% acetic acid is needed. How many mL of 5% acetic acid is required to make the 2%…

A:

Q: Indicate the majority product MeO CH₂ d. H+

A: alkene react with acid (H+) to form Initially secondary carbocation which is less stable and…

Q: What is the major product of the following sequence of reactions? O HO HO 1. NaOEt, EtOH 2. H₂O+ 3.…

A: Product of the above reaction is shown below with explanation.

Q: The original concentration of a solution is 200 mg/dL. The solution was diluted 1:5. Then one part…

A: Solution- To calculate the final concentration, we can use the formula: Final concentration =…

Q: Hydrochloric acid (HCl) reacts with sodium carbonate (Na2CO3), forming sodium chloride (NaCl), water…

A:

Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A: Mass number describes the approximate mass of the nucleus of a single atom, but average atomic mass…

Q: What is the acid form of NO3 -?

A: The NO3-  ion is the conjugate base of the nitric acid , which means that nitric acid can donate a…

Q: 80 Potential Energy 40 (kJ) Enthalpy diagram for A+B-AB A+B 0 The reaction A+B → AB is AB…

A:

Q: .8 4. O 1. LAH, Et20 2. NH4CI

A: LiAlH4 (LAH) is a strong reducing agent. It reduces lactone to diol.

Q: Draw all of the possible monochlorinated products resulting from this radical halogenation. Ignore…

A: Organic reactions are those in which organic reactant react to form organic products. Organic…

Q: Mass of Al sample: 0.045g Vol. of gas collected: 45.38ml Barometric Pressure : 755 mmHg Height of…

A: Given , mass of AI sample = 0.045 g Height of water column = 12.45 cm H2O…

Q: Complete and balance the following redox reaction in acidic solution. Be sure to include the proper…

A: Rules for balancing equation in acidic medium ;  1) write the given equation in two halves . And…

Q: How to prepare a 1:10 dilution of serum to saline?

A: By simple dilution we will prepare 1:10 dilution of serum to saline  Process - simple dilution  1:10…

Q: a) b) d) Provide a full mechanism and the product for each of the following: CI H HOCH₂CH₂OH H+ 2…

A: Ketones reacts with ethylene glycol to form ketals.  Acid chloride reacts with amines to form…

Q: Consider the compound beryllium fluoride. Draw the Lewis-Dot Structure for each ion and show how…

A: This question belongs to Chemical Bonding.

Q: Name the compounds formed by the combinations of the following cations and anions. CATION/ANION Br-1…

A:

Q: 6. Balance the following chemical equations and determine the type of reaction: Na (s) + NaOH (aq) +…

A: Different type of chemical reaction: a) Precipitation reaction: In precipitation reaction an…

Q: The protonated form of the R group of lysine is shown in the structure. The ratio of the charged…

A: They form the basic unit of the proteins. The acidity of the amino acids can be determined from…

Q: What mass of LiOH would need to be dissolved in water to make 300.0 mL of a solution with a pH of…

A:

Q: Determine the molar solubility for Cd3(PO4)2 by constructing an ICE table, writing the solubility…

A:

Q: C6H5 C6H5 C2H5O2C₁ + C2H5O2C CH2 1) NaOC₂H5 2) H3O+ & heat C19H1803

A: Given that, a reaction scheme is shown below We have to give the mechanism of the above reaction.…

Q: pneview rupiaj [Moivrences] Use the References to access important values if needed for this…

A:

Q: Ethylene (CH₂CH₂) is the starting point for a wide array of industrial chemical syntheses. For…

A:

Q: What is the molar solubility of AgCl (Ksp = 1.80 × 10⁻¹⁰) in 0.410 M NH₃? (Kf of Ag(NH₃)₂⁺ is 1.7 ×…

A: Please find your solution below : Molar solubility of a substance is the solubility that is…

Q: The original concentration of a solution is 200 mg/dL. The solution was diluted 1:5. Then one part…

A: Give, The initial concentration of a solution = 200 mg/dL. The concentration of a final solution…

Q: Gaseous ethane (CH₂CH3) reacts with gaseous oxygen gas (0₂) to produce gaseous carbon dioxide (CO₂)…

A: Given :  Mass of ethane reacted = 0.90 gm  Mass of oxygen gas reacted = 5.6 gm  Mass of carbon…

Q: овозм HBr Acetic acid, A + H2O

A: In this mechanism, C=O is protonated to form C=OH+ in presence of HBr. Then intra molecular aromatic…

Q: For the reaction H₂(g) + CO₂(g) H₂O(g) + CO(g) at 700 °C, K,-0.534. Calculate the number of moles of…

A:

Q: Consider the isoelectronic series N^{3-}, O^{2-}, F^{-}, Na^{+}, Mg^{2+}, and Al^{3+} (all with…

A: Since,As we move from left to right in a period then size decreases .But when we move from top to…

Q: Determine the number of moles in 3.06 x 1023 formula units of CaCl₂.

A: From the knowledge of mole concepts, 1 mole of CaCl2 contains 6.023 × 1023 formula units of CaCl2.

Q: For the reaction below, Kc = 0.60 at 550 K. The reaction starts with a 0.050 M concentration of…

A: Given :  Kc = 0.60  Initial Concentration of A2B2 = 0.050 M  Temperature = 550 K

Q: Which of the following is true 1,3,5-cyclohexatriene does not exist 1,3,5-cyclohexatriene contains…

A: We have find out the answer.

Quantum Chemistry

Quantum chemistry deals with the properties of chemical systems and their reactions. The branch of chemistry which is more concerned with quantum chemistry is physical chemistry. It is a more sophisticated field of theoretical physics which is concerned towards the application of physical concepts towards various chemical aspects such as, formation of atoms, chemical structure descriptions, chemical bond strength, hybridization, conjugation etc. Quantum chemistry mainly studies the various states i.e., ground state, excited state, transition states of the individual atoms or molecules taking place during any chemical reaction. The laws of motion explained by various scientists, which are termed as “classical mechanics” were not acceptable in terms of electrons, protons, atoms, light etc. Thus, a new theory named “quantum mechanics” emerged to understand the basic framework of various atomic and subatomic particles.