Element Light of specific wavelength (A, nm) Energy Ag Au Ba Ca Cu Fe K Mg Na Ni 328.1 267.6 455.4 422.7 324.8 372.0 404.7 285.2 589.6 341.5 Use Plank's equation to find the energy of each wavelength

Q: A lake has been acidified to a pH of 4.138. If the lake has a volume of 1.87x105 cubic meters, what…

A: given pH= 4.138 volume = 1.87*10^5 cubic meters than pH =7

Q: Br ОН 1. LiAIH4 2. H2O OCH3 ОН Br 1. 2. H2O MgCl ОН

A: j) The reagents and products are shown below:

Q: A 13.8 g piece of nickel was heated to 97.5 °C in boiling water and then dropped into a beaker…

A:

Q: Decide whether each molecule or polyatomic ion is polar or nonpolar. If the molecule or polyatomic…

A: Please find your solution below : Polar molecules are the molecules that have appreciable…

Q: A curved arrow mechanism for a Bronsted acid-base reaction is shown below. Choose the best…

A:

Q: alculate ΔS° (J/mol-K) for the reaction below, given the thermodynamic data in the table.  1 A(s) +…

A:

Q: 23. R Dextromethorphan HBr Guaifenesin syrup ad Sig. 3i q.i.d. a.c. & h.s. How many grams of…

A:

Q: In this reaction: 4Fe (s) + 30₂ (g) 2Fe₂O3 (s) If 2.34 moles of Fe reacts with 4.53 moles of O2, and…

A:

Q: Problem 1. A block of iron (Ciron = 0.444) weighing 207 grams absorbs 1.50 kJ of heat. What is the…

A: Heat = m × ciron × ∆T

Q: HN- OH CI N CH3CH₂CH₂Cl AICI 3 HNO3 HCI

A: Aromatic electrophilic substitution reaction involves the aromatic compound and electrophile. In the…

Q: از m) es OH CH 3 Br I X J он 2CH3 + HBr + Nal OH

A: The answer to the following question is-

Q: A vapour solution with a mole percentage of 10% benzene is cooled gradually. At what temperature…

A: We are given the phase diagram for an Azeotropic mixture (nonideal solution) of methanol and…

Q: From the solubility data given, calculate the solubil- ity products for the following compounds: (a)…

A: Given : formula and value of solubility

Q: Consider the nitrogen trifluoride (NF) molecule. What is the central atom? Enter its chemical…

A:

Q: alculate the values of [H+] and [OH−] using the pH=3 for Vinegar. An increase in pH of one unit…

A: pH + pOH = 14 pH = - log [H+] pOH = - log [OH-]

Q: 8. Which one of the following statements is FALSE? A) The average rate of a reaction decreases as…

A: 8 ) The rate of reaction is defined as the speed at which reactants are converted into products.…

Q: A chemist prepares a solution of iron (II) chloride (FeCl₂) by measuring out 1.0 g of FeCl₂ into a…

A: According to given question,

Q: The pKa value for adenine (N-1) is 4.2. Using the Henderson-Hasselbalch equation, calculate the…

A:

Q: Identifying carbon hybridization in simple organic molecules Tag all the carbon atoms with pi bonds…

A: Here we are required to find the carbon which have pi bond.

Q: Esters are formed by the reaction of carboxylic acids and acid in the presence of A) alkanes B)…

A: Carboxylic acid react with alcohol in the presence of catalyst from ester.   The catalyst used in…

Q: Picric acid may form dangerous adducts with lead. Suggest another possible method of assaying for…

A: Here we have to suggest possible method of assaying for creatinine levels-

Q: In a filtration process, the observed sieving coefficient is 0.144. If the concentration of the…

A: Sieving coefficient, S: It is the amount of solute that is removed by the convection.  It is defined…

Q: Table 1: Reagent Evaluation Reagent Ammonium Chloride Sodium Acetate Sodium Phosphate Sodium…

A: It is based on acid base theory for the preparation of buffer.

Q: If the following reaction at 698 K has equilibrium concentration values of 0.584 M HI, 0.0793 M H₂,…

A: Equilibrium constant is equal to concentration of product divide by concentration of reactant

Q: ? H₂N N=

A: A series of reaction required to get the product.

Q: Which isomer(s) of 2-bromo-1,1,3-trimethylcyclohexane would be most reactive in an E2 elimination?…

A: For E2 elimination reaction, compound should have beta hydrogen anti periplanar position with…

Q: Which of the following is a balanced chemical reaction(s)?     a)  H2SO4 + B(OH)3 → B2(SO4)3 + H2O…

A:

Q: Change ethane into 1,2-ethanediol (HOCH2CH2OH) by removing one hydrogen atom from each carbon atom…

A: lewis structure is diagrammatic Representation of molecules with showing it’s bonded and non bonded…

Q: 16.19 A diprotic acid, H₂A, has the following ionization constants: K₁₁= 1.1 × 10¯³ and Kå,= 2.5 ×…

A: Whenever we need to make the decision of which acid to use the general rule of thumb is to use the…

Q: You react 2.33 g of iron (III) chloride with 50.0 mL of 0.500 M solution of sodium phosphate to form…

A:

Q: A proposed mechanism for the decomposition of N₂O5 is as follows: k₁ slow step N₂051 fast step NO₂ +…

A:

Q: How many atoms of N are there in 0.00087 moles of the molecule N2?

A: Moles:   Mole is an unit of amount of substance for measuring large quantities of very small…

Q: 6. If you dissolved 5.0 g of nickel (II) chloride hexahydrate in 20 mL of 2.0 M…

A: limiting reactant is totally consumed during reaction and limiting reactant leads to tell the amount…

Q: (e) (f) CH₂CH₂ CH3CH₂ CH3 H CH3 CH 3 and and and H₂C CH3CH₂ H -CH3 CH₂CH3 -CH₂

A: Isomers: Molecules having the same formula but different structure. Stereoisomers: molecules having…

Q: Give a clear handwritten answer with explanation...Blance the following reaction in detailed?

A: The Chemical reaction follows the law of conservation of mass. According to the law of conservation…

Q: 2) Name, or draw the struce of (part a) three the following 4 molecules of A) Br B) c) Junk Br Br OH…

A:

Q: Using the periodic table of elements answer the following: A) either 2-methyl propane is converted…

A: Given  2-methyl propane is converted to 2-bromo-2methyl propane Or 2-methyl propensity is converted…

Q: 3. Devise a synthetic route to prepare the following compound. You may only use five-carbon alcohols…

A:

Q: The lattice constant of the unit cell of alpha-iron ( has a bcc structure) is 0.287nm. The number of…

A: Given that;

Q: You are carrying out an experiment by analysing alcoholic drinks by gas chromatography. Why is Gas…

A: Gas chromatography is commonly used for analyzing any particular compound which is vaporized without…

Q: 3. Potassium metal and water react to form potassium hydroxide and hydrogen gas. If you react 1.12 g…

A:

Q: The heat capacity of a bomb calorimeter is found to be 5.68 kJ °C-1. When a 1.652 g sample of…

A: mole = massmolar mass

Q: H Cl₂, CH3CH₂OH Draw the major product. Select Draw Rings More CL

A: The organic reaction of the alkene is given and we have to tell the major product of the reaction.

Q: Exercise Use the ideal gas equation to evaluate the volume of Helium gas (He(g))at the following…

A:

Q: Types of Reactions Worksheet Balance the following equations and indicate the type of reaction…

A: According to Guidelines, only first three parts will be solved .  "To get remaining sub-parts solved…

Q: 6. Calculate the percent yield when 0.631 g of precipitate is collected from the reaction of 35.0 mL…

A:

Q: The following reactions all have K < 1. 1) CgHyOs" (aq) + HCOOH (aq) =HCgHy©s (aq) + HCOO" (aq) 2)…

A: Acid is a substance which can donate a proton and base is a substance which can accept a proton. If…

Q: Draw the skeletal structures of all isomers of C₆H₁₂ that have the (E)-configuration.

A: E/Z configuration exist in alkene. E- configuration in which the highest priority group are on the…

Q: 3. There is a serious flaw in the proposed synthetic pathway. What is it? 080457 Na HSO3 I OH

A: The detailed explanation is provided below. The flaw in above reaction is that trans diol is formed…

Q: What is the energy difference between R-2-fluoropentane and S-2-fluropentane?

A: According to given question,

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.