Light sample A has a frequency of 3.30 × 10¹5 Hz and light sample B has a frequency of 8.70 x 1018 Hz. What is the wavelength of light sample A in meters?

Q: If you have a complex ion in equation solution in the solution is yellow, what is the approximate…

A: Using a color spectrum wheel, it is possible to determine what color a solution will appear based on…

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Q: How would each of the following errors affect the determination of the molar mass of the unknown…

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Q: a. Convert 731 millimeters of mercury to atmospheres. atm b. Convert 16.1 psi to millimeters of…

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Q: Phosphoryl chloride, POCI3(g), is used in the manufacturing of flame retardants. It is manufactured…

A: Reaction : PCI3(g) + NO2(g) ⇌POCI3(g) + NO(g) +228.93 kJ

Q: 2.Al(s) + 3 CuCl(aq)3 Cu (s) + 2 AICI, (aq) A piece of aluminum metal is placed in an aqueous…

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Q: 30jud to 28AM 5. Sodium carbonate is a reagent that may be used to standardize acids in the same way…

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Q: Identify the missing organic reactants in the following reaction: X + Y H* مر -O OH H+ mo Note: This…

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Q: → 8 C + 3 D and the absolute entropies provided in the table below. Compound S° (J/(mol·K)) A…

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Q: Propose arrow-pushing mechanisms for the following transformations: CI H2N-NH2 pyridine (xs) NH I ΝΗ

A: In the given reaction NH2NH2 acts as a nucleophile and it can attack the carbon centres of the acid…

Q: A chemist performs a gravimetric analysis. The chemist combines 1.00 L of 2.00 M AgNO3(aq) with 1.00…

A: A chemist mixes AgNO3  and NaCl in erlenmeyer flask .

Q: 2H ¹H NMR Spectrum of Propyl Acetate CH3-CH₂-CH₂-0- 3H 2H Chemical Shift (ppm) 1.5 -CH₂ 3H TMS…

A: Every nuclei will have spin and if an external magnetic field is applied, there will be an energy…

Q: بلدي بلدند Write the mechanism for the Claisen reaction. NaOCH3 HO

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Q: 22- Give one example for the hydration of Alkene: That is the Addition of H2O by oxymercuration.…

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Q: Provide the mechanism and product(s) of the following reactions: CI OH NH₂ CH3CH₂OH MeOH (xs) [H*]…

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Q: The oxidation number of aluminum in Al³+ is

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Q: Light sample A has a frequency of 3.30 x 1015 Hz and light sample B has a frequency of 8.70 x 10¹8…

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Q: 4. Why is it generally healthier to consume unsaturated fats over saturated fats? ✓✓✓

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Q: Predict organic product that forms in the reaction below: H Xym. + OH H+ OH H* X Note: You may…

A: The given reaction is shown below We have to draw the major product of the above reaction.

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Q: How much heat is needed to convert 776. g of ice at -10.0 °C to steam at 126.0 °C? Be sure your…

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Q: 10 is a titra con curve of a weak acid with NaOH. What region of the titration curve can the volume…

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Q: A sample of a gas mixture contains the following quantities of three gases. compound CO CO₂ SF6 mass…

A: Volume = 2.50 L Temperature = 16.6°C

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Q: 7) Which of the following is a disaccharide? a. Galactose b. Sucrose c. Cellulose d. Ribose

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Q: A) A B ? 19.1 NH₂ B) lºb NH What is the product of the reaction above? D) HCI

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Q: Consider a reaction occurring at 400°C that has a ΔH° of 568 kJ/mol and a ΔS° of -83 J/(mol⋅K).…

A: ΔH° = 568 kJ/mol = 568 x 103 J/mol   ΔS° = -83 J/(mol⋅K) Temperature = 400°C = 400 + 273 = 673 K

Q: What is the vapor pressure of SiCl4 in mmHg at 27.5∘C? The vapor pressure of SiCl4 is 100 mmHg at…

A: P1= 100 mm Hg T1 =(5.4 + 273 ) = 278.4 K T2 = (27.5 + 273 ) =300.5 K △Hvap=30.2 K J mol-1 Calculate…

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Q: You discover a new element with a molar mass of 319.0 g/mol. How many atoms are contained in 97.9…

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Q: Metal Specific Heat (J/goC) Calcium 0.647 Iron 0.449 Silver 0.235 Gold 0.129 In…

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Q: A strong acid is generally used to catalyze the Fischer esterification of carboxylic acids. What two…

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Q: 6) Which of these statement about functional groups is true? a. They are always non-polar b. They…

A: Functional groups are specific groups of atoms that occur within organic molecules.

Q: Consider the reaction A → B with ΔS° = 78.900 J/(K·molrxn). What should be the ΔS° in J/(K·molrxn)…

A: When the reaction is reversed, the sign of the entropy will be changed.

Q: How many moles of hydrogen are contained in exactly 2 moles of H₂PO4?

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Q: Be sure to answer all parts. Consider the following general voltaic cell: A Voltmeter B D E Identify…

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Q: Q Which one is the NC- hope is the major product? No₂ Cla, cat Fellz Eto Eta Cl Cl Eto. >? EtQ (Two₂…

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Q: H NMR of Methyl linoleate with assignments, multiplicity and ppm

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Q: 20- Show and write the correct reactions of the addition of 2 moles of HBr to 1- Hexyne. 21-…

A: HBr adds to the alkyne according to Markovnikoff's rule Z-isomer is less stable due steric hindrance…

Q: portant values if needed for this question. The molarity of an aqueous solution of potassium…

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Q: Consider the following molecules, which of these pure substance/s is/are expected to exhibit…

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Q: 2. Calculate AGº and Kc for the following reaction at 298K: Br₂(1) + 21 (aq) (R:8.314J/mol.K, 96500…

A: The negative value of ∆G0 describes that the reaction is spontaneous towards forward direction.

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.