Consider a rotating molecule of ®Li'H. At T = 300 K, the rotational kinetic energy in the eighth excited state is equivalent to kgT, where kg is the Boltzmann constant. What is the energy of the first excited state relative to the ground state?

Q: Choose the best reagents to complete the reaction shown below. Br

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Q: Q1/A) A mixture 300 kmole has the following composition by mole :- (C.H10 20% , CsH12 30%, CH14 20%,...

A:                Total moles of gaseous mixture = 300 kmole                                           ...

Q: e percent yield of water.

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Q: How much heat is absorbed by liquid water that weighs 550 grams as it is heated from 25C to 95C?

A: Given, mass of water m= 550 g T1=25 ℃  T2=95℃ Cp for water = 4.184 J g-1℃-1 heat q=?

Q: A chemistry graduate student is given 450. mL of a 0.50M methylamine (CH,NH,) solution. Methylamine ...

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Q: Complete the table provided below for the nomenclature of alkanes. Structure IUPAC Name OH а. HO но,...

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Q: Gaseous ethane (CH,CH,) reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide (CO, a...

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Q: A 1.42 g sample of KCr(SO) XH20 was heated in a crucible to get a constant mass. The mass of the pro...

A: Formula to calculate mole is :-  Mole = mass÷ molar mass

Q: Direction: Read then solve the question carefully. Click the letter of the correct answer. Question:...

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Q: Calculate the pH of 0.030 M Ba(OH), solution. 12.78 O 1230 O 122 O 12.48 12.16

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Q: Organic, Inorganic or Both?

A: ANSWERS:- Organic compounds:- Made by living things and contains carbon mostly attached to Hydrogens...

Q: Why Does The Flask Need To Be In An Ice Bath And The Sulfuric Acid Added Dropwise? Synthesis Of Benz...

A: Sulphuric acid is a strong acid which react voilently with water and it is completely soluble in wat...

Q: 2H* (aq) + Sn (s) → Sn2+ (aq) + H2 (g)

A: We have given reaction is  Redox reaction ( oxidation reduction takes place simultaneously)

Q: TEMPERATURE A\ WRA ction: Label the distinct parts of the heating and cooling curves of wat COOLING ...

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Q: When a 2.88 g sample of solid ammonium nitrate dissolves in 60.0 g of water in a coffee cup calorime...

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Q: energy, in J, is

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Q: Which one of the following solutions is not a buffer solution? O HF/NaF HBr/NaBr O NH3/NH.CI HCN/NGC...

A: Among those the one that won't be considered as buffer is given below

Q: Which one of the following solutions is not a buffer solution? Acetic acid (HC2H3O2)/ NaC2H3O2 HF/Na...

A: A solution which resist any change in pH upon the addition of small quantity of acida or bases is ca...

Q: concentration

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Q: A mixture of 0.560 g BaCl, 2H2O (molar mass = 244.2g/mol) and 1.44 g of NazPO4 12H20 (molar mass = 3...

A: 2Na3PO4 + 3BaCl2-----> Ba3(PO4)2 (s) + 6NaCl Mass of BaCl2.2H2O = 0.560 g Molar mass of BaCl2.2H2...

Q: 2. Briefly explain the application of the functional group "Cis-Trans isomers for night vision" and ...

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

Q: How much heat (kJ) is evolved when 4.50 g of Fe203 is reacted with excess carbon monoxide using the ...

A: Given Data : 

Q: A doctor prepared a drip of 60 mL per hour for a patient in ward B,  while the correct dose of  62 m...

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Q: plz solve all parts within 30-40 mins I'll give you multiple upvote

A: Initial amount of sodium-24 = 12 mCi Half life of sodium-24 = 15 hours   use the simple formula: per...

Q: CH3CH2CH2CI с. HNO3 c. H2SO, KMNO4, AIC13 ОН, heat NH2 COOH ÑO2 COOH `NO2 CH2CH3 `NH2

A: Friedel-Craft alkylation reaction: When the benzene reacts with an alkyl halide in presence of Lewis...

Q: answer is given Trispiro[2.2.2.29.26 33]hexadecane. but why it does not start from the right cyclopr...

A: Namenclature of multicyclo compounds. .  Identify the ring which contains largest carbons. . Startin...

Q: When 1 mol of a nonvolatile nonelectrolyte is dissolved in 4 mol of a solvent, the vapor pressure of...

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Q: An analytical chemist is titrating 189.5 mL of a 0.6500M solution of ammonia (NH,) with a 0.8000M so...

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Q: 1. Which of the following is NOT true about equivalence point and endpoint? a.The endpoint is marke...

A: At the equality point of a titration, a precisely comparable measure of titrant has been added to th...

Q: Activity 2 HEATING CURVE OF ETHANOL E BOILING F GAS AV LIQUID B MELTINGC -115-- SOLID TIME T'E'N°A Q...

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Q: Gaseous methane (CH,) reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide (CO,) an...

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Q: What is the ratio strength (w/v) of an isotonic solution for pilocarpine hydrochloride SCE 0.24? A. ...

A: Given, SCE (sodium chloride equivalent )= 0.24

Q: Prepare a 250-mL buffer with pH = 4.40 from solid reagents benzoic acid (C6H5COOH; M = 122.123 g mol...

A: We are asked to do calculations for a acidic buffer solution that contains a weak acid, benzoic acid...

Q: volume

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Q: mass

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Q: E conjugate bas

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Q: Solution A has pH of 3.20, solution B pH of 12.50, solution C a pH of 7.00, and solution D a pH of 4...

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Q: кон кон B) K H2 K O2 H2 C) K* он OH K* D) 02 H* K* K* 30. Magnesium hydroxide can be made by the rea...

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Q: Green plants use light from the Sun to drive photosynthesis. Photosynthesis is a chemical reaction i...

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Q: Draw the Lewis structure for the polyatomic phosphite anion. Be sure to include all resonance struct...

A: Lewis structures are diagrams that show the bonding between atoms of a molecule as well as the lone ...

Q: What is the mass percent of an aqueous sodium carbonate solution in which the mole fraction of Na2CO...

A: Solution - According to the question - Given - Moles of Na2CO3 = =mole fraction * moles of solution ...

Q: Practice Exercises 6.1 1. a. b. H,CO,(aq) = H,O(/) + CO,(g) H,O(g) + C6) = H,(g) + CO(8) 0,(g) + 4NO...

A: At equilibrium, the rate of the forward and the reverse reaction is the same and the concentration o...

Q: What is the name of the following apparatus? O a. Crucible Tongs O b. Wire gauze Oc Erlenmeyer flask

A: Laboratories require a wide range of equipment and instruments in order to conduct testing and resea...

Q: When 1 mol of a nonvolatile nonelectrolyte is dissolved in 4 mol of a solvent, the vapor pressure of...

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Q: How would you carry out each of the following syntheses? Each may require mo than one step. a) CH3CH...

A: ->Alkyne on hydrolysis give carbonyl compound. ->terminal Alkyne has acidic hydrogen.  

Q: NH3(9) + 502(g)-4NO(g) 6H20(g), vas carried out at a certain emperature. A system was prepared with ...

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Q: Which amino acid can participate in electrostatic interactions? "HN- -CH CH "HN-CH- "HN- -CH- CH, HN...

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Q: 14. One 1iter of a solution contains 0.010 mole of AgNO and 2.0 mole of NHOH. (a) 0.010 mole of NaCl...

A: Solution -

Q: Which of the following statements is TRUE about elimination tests for anions? of Select one: SCN' in...

A: Here we have to write about correct statement for elimination tests for anions. Here no option is co...

Q: Which of the following statements is correct concerning the strength of acids: HBr HCIO3 > HCIO4 HB...

A: With increasing in ability to dissociate to form H+, acid strength increases.  Ability to dissociati...

Atomic Structure

The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.

Shape of the D Orbital

Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.