What is the color of a visible radiation having an energy of 3.60 x 10-19 Blue : 440 - 490 nm קנ Green: 490-570 nm Yellow: 570-585 nm Orange: 585-620 nm

Q: A tank with a capacity of 74 liters, initially contains 20 kilograms of salt dissolved in 50 liters ...

A: Given, Total capacity - 74 L Initially - 20 kg salt in 50 L of water. Final addition - (74 - 50) = 2...

Q: e reaction

A:

Q: What is the starting material? OH 1. Et,CuLiBr, THF H3C. 2. NH,CI, H2O O The following compound: O T...

A: The above reaction is of Gilman Reagent.  

Q: Draw the expanded structural formula of an organic compound with sixteen carbons using the following...

A: We have to draw the structure according to rules given above.

Q: Example 8 Calculate the corrosion rate in mpy of Al specimen (5 cm) immersion in aqueous solution fo...

A:

Q: how would you prepare 25mL of a 15% dye solution beginning with a 20% stock dye solution? find mL of...

A:

Q: Estimate the value of the rate constant, k. Express your answer using two significant figures. Nνα Α...

A:

Q: QUESTION 9 The metal niobium crystallizes in a body-centered cubic lattice. If the density of niobiu...

A: For bcc lattice,  Contribution of atom of body centre = 1  Contribution of atom of corners = 1/8 Tot...

Q: What are the Miller indices of the slip directions: (a) on the (111) plane in an FCC unit cell? (b) ...

A: To determine the Miller indices of slip directions for the (111) plane in FCC unit cell and (011) in...

Q: (K for Phir 6.60 x 104 K for PhSO, - 2.53 x 10) Part 2 Feedback What is the concentration in the sol...

A: Sulphate ion is precipitate first because Less Pb2+ is required to form precipitate with sulphate io...

Q: What is the pH of a solution with hydroxide ion concentration

A:   pH = - log[H+]    At 25° C [H+]  [OH-] = 10-14  Given that [OH-] = 0.0076 M [H+] (0.0076 M) = 10-1...

Q: Dimensional analysis if you want to make 8 quesadillas how many lbs of cheese are required. each que...

A:

Q: How would you draw a structure like (+-)hexane-3,4-diol?  What about (+)hexane-3,4-diol or (-)hexan...

A: + and - are symbols to show dextrorotatory and laevorotatory compounds, one rotate plane polarised l...

Q: The equilibrium constant is given for one of the reactions below. Determine the value of the missing...

A:

Q: 21. Based on your knowledge concerning halogenation of alkenes, provide a step-wise curved arrow mec...

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Q: Which reagents are required to accomplish the transformation below? OH HO. А. 1.2 еq. MeLi 2. H2O B....

A: In the given reaction an ester gives nucleophilic addition reactions.

Q: Give the conjugate base of H2O.

A: Acid is substance which release hydrogen ions and base is substance which release hydroxyl ions when...

Q: A sample of 25.0 g of potassium chloride (KCl) is dissolved in 100.0 g of water. What is the percent...

A: • The values provided the question are:-  i) Mass of KCl (solute) = 25.0 g  ii) Mass of H2O (solvent...

Q: 4 Al (S) + 302(g) 2AI2O3(s) How many grams of Al203 can be formed from 81.34 g of Al and 22.49 g of ...

A: Given :-  4Al(s) + 3O2(g) → 2Al2O3  mass of Al = 81.34 g  mass of O2 = 22.49 g  To calculate :-  mas...

Q: How many moles are in 1.05 x 1022 molecules of an unknown compound? Your Answer: Answer units

A: Here, we have to find the number of moles present in 1.05 × 1022 molecules of an unknown compound.  

Q: Atenolol

A: Question 4: Due to it's structural peculiarity i.e asymmetric carbon atom. This chiral carbon centre...

Q: 1. Consider this compound: CH;CH2CHCH2CHCH2CH3 ČH3 a) How many chiral carbons does this compound hav...

A:

Q: Which of the following mixtures would result in a buffered solution when 1.0 L of each of the two so...

A: A buffer is defined as the mixture of a weak acid with its conjugate base or a conjugate acid with i...

Q: UH CH3 OH H. H.

A:

Q: The equilibrium-constant of the reaction NO2 (g) + NO3(g) - N2O5 (g) is K = 2.1 x 10–20. What can be...

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Q: Elemental phosphorus occurs as tetratomic molecules, P4. What mass of chlorine gas is needed to reac...

A: Phosphorus reacts with chlorine to form phosphorus pentachloride. The equation for the balanced chem...

Q: 27. You've been given an unknown alkane in the lab (compound X) its molecular formula is C7H16. When...

A: In the given problem, an alkane X having a molecular formula of C7H16 undergoes the bromination reac...

Q: F. `N' `N' HN, Amoxicillin NH2 H H CH3 CH3 HO CO2H Identify the functional groups present in each dr...

A:

Q: e volume in lit

A:

Q: What process is involved in #4?     A. external conversion   B. vibrational relaxation   C. i...

A:

Q: Which of the following is not an example of a covalent bond? A N-N B Mg-N C N-O D H-H

A: Given, The following is not an example of a covalent bond that is:

Q: Encircle the functional groups and identity the functional group present

A:

Q: Verify that the reduced mass of I, is about 1 × 10-25 kg by doing the calculation yourself. Express ...

A:

Q: Provide the proper IUPAC or common name for the following compound. [do not use italics in Canvas] n...

A: During the IUPAC nomenclature first we have to find out the parent chain.

Q: Choose an expression for the equilibrium constant (Kc) for the following chemical equation: 2K2O2 (s...

A:

Q: Q.No. 5 Absolute stereochemistry of the given compound is: 8a 4a OH (A) 4aR. 8aS (B) 4aR. 8aR (C) 4a...

A: Since you have asked multiple questions, we will solve the first question for you. If you want any s...

Q: For the following systems at equilibrium A: 2NOCI(g) B: H2(g) +I2(g) = 2NO(g)+Cl2 (g) = 2HI(g) class...

A: According to Le Chatlier's principle, if any change is made to an equilibrium system, the system shi...

Q: Rank the isomers in order of increasing heat of formation. Highest heat of formation Lowest heat of ...

A: The alkenes are compound which composed of carbon and hydrogen and contains at least one double bond...

Q: 41.9 ml. of 0.151 M NAOH was needed to neutralize 50.0 mL of an H2S04 solution. What is the concentr...

A: Sulfuric acid reacts with sodium hydroxide to form sodium sulfate and water. The equation for the ba...

Q: Consider the following reaction: SO2 Cl2 (g) = SO2 (g) + Cl2 (g) K. = 2.99 x 10-7 at 227 °C You may ...

A: Given reaction: SO2Cl2 (g) ⇌ SO2 (g) + Cl2 (g) Given, Kc = 2.99 × 10-7 Given, the initial concentrat...

Q: Some measurements of the initial rate of a certain reaction are given in the table below. [N:] [H] i...

A:

Q: You are joining Professor Begley’s research lab und he asks you to prepare 340ml of a 1.2 M KCl solu...

A: Given,  Volume of KCl solution(V )= 340 ml Molarity of KCl solution(M) = 1.2 M Molecular weight of K...

Q: light N-Br

A:

Q: Solution contains 2 M H2SO4. Calculate the molar concentration of H+

A: Solution is given below in next step 

Q: Two beakers are placed in a small closed container at 25 °C. One contains 231 mL of a 0.267 M aqueou...

A:

Q: Calculate the mass in kilograms of 11.9 mol of CuF2 2H20. kg CuF2 2H20

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Q: monitor the progress of Wauld see TLL IS often used to aveactioni Describe what gel TLC ifyou took a...

A: Retention factor (Rf) = distance travelled by the compound / distance travelled by solvent front

Q: Compute for the volume (in mL) of 0.1 M acetic acid and mass (in g) of sodium acetate needed to prep...

A: Solution -

Q: Example 8 Calculate the corrosion rate in mpy of Al specimen (5 cm²) immersion in aqueou 2 days, giv...

A: Area = 5cm2  

Q: Q = K the reaction goes to the right (toward products) the reaction goes to the left (toward reactan...

A: For a reaction at equalibrium it equalibrium expression is given by keq but at any time t it's expre...

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.