The fluorescent bulb doesn’t just have one kind of element inside it. It has a whole range of compounds selected so that they will emit a lot of different colors. However, there are still gaps in the spectrum. So why does the light still appear white?

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

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Q: Convert the following into SI base units (meters, grams, liters). For example: given 1.45 mm (=…

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Q: The balanced chemical equation for the reaction between aqueous nitric acid and aqueous barium…

A: The balance chemical equation between aqueous nitric acid and aqueous barium hydroxide is = ?

Q: An athlete runs the mile in 3 minutes, 56.6 seconds. At the same speed, how many seconds does it…

A: Given - Time to run a mile = 3 minutes 56.6 seconds.              1 mile = 1609.3 meter…

Q: A. Br B.

A: During nomenclature of organic molecules: Choose the longest hydrocarbon chain. Give the lowest…

Q: An aqueous solution of sodium hydroxide is standardized by titration with a 0.102 M solution of…

A: Sodium hydroxide reacts with hydrochloric acid, to form sodium chloride and water. The equation for…

Q: 1. A certain rootbeer has a hydrogen concentration equal to 1.9x10-5 M. What is the pH and pOH of…

A: Given-  1. concentration of hydrogen = 1.9 ×10-5 M 2. pH = 11.64    Volume of solution =2.55 L

Q: 13) Draw a cartoon image showing the (hybrid) orbitals (e.g., spheres and lobes) for acetate…

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Q: added

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Q: Na+ and Cl form a bond. What type of bond would they form?

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Q: At a certain temperature, the solubility of strontium arsenate, Sr3 (AsO4)2, is 0.0550 g/L. What is…

A: Given, solubility of strontium arsenate, Sr3(AsO4)2 = 0.0550 g/L Ksp = ? Note: molar mass of…

Q: The recommended adult dose of Elixophyllin, a drug used to treat asthma, is 1.5 mg/kg of body mass.…

A: The recommended adult dose of Elixophyllin is = 1.5 mg/kg of body mass Body mass of the person is =…

Q: How many collisions per second does an N2 (σ= 0.43 nm) molecule make at an altitude where the…

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Q: r) s) Br CH3OH H₂SO4 OH NaOH CH3ONa CH3OH

A: -> Base can abstract most acidic hydrogen and form nucleophile which can give nucleophilic…

Q: [synthesis-2] 1,4-keloester mechanim- N, Hч слой, денешь. 100% о вог, Асон 6o'c hey NH O те N-HH Вз…

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Q: Construct the molecular orbitals for FHF- , CO2,  H2O , NH3, and BF3.

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Q: What is the change in internal energy AU of carbon dioxide for this entire process? Express your…

A: Answer is -59844.86 J

Q: Question 13 Solve for 'x' in the following algebraic expression 3.20 In (x/5.00) 123 -3.01 0.065…

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Q: what is the iupac name of this compound

A: We have given the organic compound we have to find the IUPAC Name for that compound

Q: Most ring fusions in a steroid molecule are: Cis Parallel Trans Anti

A: Steroid molecules generally have a four fused cycloalkane rings. For example cholesterol.

Q: A favorable entropy change occurs when AS is positive. What can be said about the order of the…

A: Answer: Entropy is the measure of disorderliness of the system and enthalpy is the measure of total…

Q: Two reactions and their equilibrium constants are given. K₁= 2.89 K2 = 0.210 Calculate the value of…

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Q: A 100.0 mL of 0.1 M HCI solution is mixed with a 50.0 mL of 0.1 M of KOH solution. The resultant…

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Q: Why does the additional substituent on the 3rd carbon disappear?

A: We need to use the IUPAC rules to name a compound.

Q: Human blood typically contains 1.04 kg/L of platelets. A 7.29 pints of blood would contain what mass…

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Q: Different masses of aspirin (e.g 10mg, 100mg, 1000mg) used in an acid base titration. what could be…

A: Since we are not providing the handwritten notes and according to our guidelines, we are providing…

Q: Part I. Name the following molecules, using IUPAC naming conventions (no common names). Indicate all…

A: The names of the given molecules are given below :

Q: hydroxide to produce water sodium

A: The chemical equation needs to be  balanced so that it follows the law  of conservation of mass . A…

Q: There should be 10.07 x 7.395 2.5x0.08 significant figures in the answer to the following…

A: During multiplication and division,  the result is reported in the minimum number of significant…

Q: Q14. A plot of a Langmuir adsorption isotherm (C/q. vs 1/Q.) for an adsorption process, gives a…

A: To calculate the value of Qo , we would first use the linear form equation of Langmuir adsorption…

Q: A copper wire (D=8.96g/cm³) has a diameter of 0.25mm. If a sample of this copper wire has a mass of…

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Q: он за OH H3C OH Н.С CH3 CH3 NHE COOH OH CH₂ 'Br

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Q: A mixture of 50.00 grams propane, C3H8, and 100.00 grams oxygen, O₂, is combusted. C3H8 - 44.10…

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Q: Carbon as it appears on the periodic table is shown below. Carbon 6 C с 12.011 Carbon has an atomic…

A: Carbon:- Carbon is p-block element and its atomic number is 6. •Carbon electronic…

Q: Based on the following figure, select the physical change that occurs when: Pressure 1.50 atm- 1.00…

A: To determine the physical change , we would check the physical state at initial and final condition…

Q: IV. Complete the table by computing for the missing pH, pOH, [H*], and [OH-] 1. 2. 3. 4. 5. [H+]…

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Q: Get the concentration of the unknown solutions with a %T of 63 Given: S1 = 0.02 mg 76%T S2 = 0.04…

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Q: lo to become chemically stable rons does this have?

A: 6 is the atomic number and 12 is the mass number as according to the magic number the ist shell will…

Q: Problem #5 A cylindrical container's pressure is 200,000 Pa; its temperature is 86 deg Fahrenheit;…

A: (1) Assuming the room air also contains only ideal gases,            PV=nRT              Where, P =…

Q: Give the 4 sets of quantum numbers for the 16 electrons of Sulfur.

A: The atomic number of sulfur is 16.

Q: 6. A vapor volume of 1.17 L forms when a sample of liquid acetonitrile, CH3CN absorbs 1.00 kJ of…

A: Volume (V) = 1.17 L Boiling point= 81.6°C = 81.6 + 273 = 354.6 K Pressure (P) = 1.0 atm

Q: Identify the amino acids contained in the tripeptide below:

A: A peptide bond is an amide-type bond between two amino acids. An amino acid contains amino and…

Q: ! Question 8: Which one of the compounds in Figure 8 is not a structural isomer of the carboxylic…

A: The answer for Question 8 is: B     The answer for Question 5 is: 2    Reason: oxygen atom can form…

Q: H3C (c) O-H Acid (a) Using the information from the table in Model 3, the pKa of CH3CO₂H = 16 (d)…

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Q: Write the IUPAC name of the following structures

A: We have to name the given compound using IUPAC rules

Q: Problem #4 A sealed jar whose volume is exactly 1 liter contains exactly 1 mole of air at 20 deg…

A: Given V = 1 L n = 1 mol T = 200C = ( 273 + 20 ) K = 293 K

Q: A 0.500 g metal occupies a volume of 25.0cm³. What is its density? a. 0.020 g/cm³ b. 12.5 g/cm³ c.…

A: "Since you have asked multiple subpart questions, we will solve the first three subpart questions…

Q: Get the concentration of the unknown solutions with a %T of 63 Given: S1 = 0.02 mg 76%T S2 = 0.04…

A: Given that, Concentration (mg) % transmittance (%T) 0.02 76 0.04 58 0.06 45 We have to…

Q: The molecular weight (i.e. molar mass) is often considered the most important aspect of a polymer.…

A: Since, polymers have very long chain of monomers. We can not determine exact molar mass directly as…

Q: What is the mass, in grams, of 6.5 x 10-3 moles of ammonium phosphate? 1.35 g 0.97 g 0.85 g 0.73 g

A: Concept:  Moles and molar mass can be used to predict the mass of the sample. Moles is unit to have…

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.