What is the difference between the excitation and emission spectrum?

Q: Separate salt and pepper , use a comb to bend water. What is the science behind these experiments?

A: Salt can be defined as a mineral mainly made up of sodium chloride. Sodium Chloride is a chemical co...

Q: What is the freezing point of a solution prepared by dissolving 18.0 g of glucose ( MW = 180.0 g/mol...

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Q: Diamond, lattice constant (a) = 0.3567 nm, shares the same crystal structure as Si, FCC with lattice...

A:  X-ray diffraction is commonly used as a non-destructive method of studying carbon materials and oth...

Q: A solution is prepared by dissolving 11.3 g of Ca(NO3)2 in 115 g of water. The molal freezing point ...

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Q: Complete and balance the following equation: Perchloric acid and lithium carbonate Add all of the ...

A: The solution is given below - 

Q: ned: [NH3), M 1.03x10-2 5.15x10-3 1.29x10-3 773 2.58x10-3 seconds 442 662 Hint: It is not necessary ...

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Q: The density of methanol, a colorless organic liquid used as solvent, is 0.7918 g/mL. Calculate the m...

A: Given density = 0.7918 g/mL.

Q: ydroiodic acid is_______ than hydrochloric acid, but________  than the bromic acid. Bromic acid is__...

A: Given : We have to fill in the blanks.

Q: crystalline or amorphous solid

A: A crystalline solid is formed by arranging the components in a regular repeating three-dimensional a...

Q: A sample of Si weighs 54.8 grams. Will a sample of Ba that contains the same number of atoms weigh m...

A: Answer: Since, 1 mole is always equal to 6.022×1023, therefore same number of atoms will always be s...

Q: A solution is prepared by dissolving in 3.00 g of naphthalene ( C10H8 ) in 20.0 g of benzene ( C&H6)...

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Q: 5. Strontium-90 is a dangerous by-product of atomic testing because it mimics the action of calcium ...

A: Soln In a beta particle emission the particle which is given off is an electron with the symbol. If ...

Q: 2. Twenty-five mL of 0.100M lactic acid (K = 1.4 x 104) is titrated with 0.097 M KOH. a) What is the...

A: Soln

Q: the following data were obtained: [HI], M seconds 2.46 1.23 0.615 0.308 408 1.22x103 2.85x103 Hint: ...

A: The Half-life of the reaction is the time required to be the concentration half of the initial conce...

Q: How many Liters are in 13.8 moles of CO2 gas @ STP? Group of answer choices A.13.8 moles x (1 L/22.4...

A: Here we have to find the volume occupied by 13.8 moles of carbon dioxide (CO2) at STP.

Q: Draw the major organic product of each reaction. Indicate the stereochemistry at the stereogenic cen...

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Q: At 293K the vapor pressure of A is 30mmHg while that of B is 100mmHg. The two forms an ideal solutio...

A: Vapor pressure of a substance is the pressure exerted by the vapor above its solid or liquid state. ...

Q: Why does aluminum, which has less mass than magnesium, produce approximately the same amount of hydr...

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Q: a) What is the meaning of the following symbols? i. ii. E ii. A b) State TWO (2) conditions necessar...

A: a) The meaning of the given symbol is, i) The given symbol is called psi. It indicates the wave func...

Q: Determine the limiting reactant/ reagent in the following chemicals equation C4H10 + 02 → CO2 + H2O ...

A: The limiting reagent is the reactant species in reaction which consumed totally when reaction is com...

Q: The Covid-19 virus has an average size of 0.3 micrometers. What is the average size of the virus in ...

A: Average size of virus = 0.3 micrometres  Average size of virus (in centimetres) = ? 

Q: The data below is for the reaction sequence A → B -→ C → D. 1 -1 Elementary step A,H/kJ mol E /kJ mo...

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Q: A first order reaction has a rate constant of 0.765 at 25 oC and 9.62 at 44.8 oC. Calculate the val...

A: Here we use the arhenius equation, actually use this equation in two different temperatures by the e...

Q: Explain the photosynthesis prcoess and respiration process in a tree.

A: Photosynthesis is a process by which plant turns water, sunlight and Corbon dioxide into oxygen and ...

Q: 1. Using arrow formalism, show how the McLafferty rearrangement might occur in PHCOCH2CH2CH3. What v...

A: McLafferty rearrange is a characteristic fragmentation of carbonyl compound in mass spectroscopy. fo...

Q: The vapor pressure of benzene is 100.0 mmHg at 26.1°C. Calculate the vapor pressure of a solution co...

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Q: Calculate %Na2CO3 in the sample.

A: Na2CO3 reacts with 2 mol of HCl to generate 2 mol of NaCl along with CO2 and H2O. So, 1 mol Na2CO3 :...

Q: Convert 7.2 m^3 to liters

A: This question is related to unit conversion topic. Meter cube (m3) and liter are the unit of volume.

Q: atomic

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Q: A solution that contains 3.86 g X in 150 g of ethyl acetate boils at 78.210C. What is the ,olecular ...

A: Given: Mass of solute X = 3.86 g Mass of solvent ethyl acetate = 150 g The normal boiling point of ...

Q: reaction with rate constant 0.820 h-1 starts with 0.500 M of reactants.  What is the molarity of rea...

A: Given rate constant K = 0.820 h-1 time = 1.5 hours initial Concentration = 0.500 M

Q: Trial Trial Trial Trial 1.0 g 3.0 g 5.0 g 12.0g NaCi NaCI Naci Sucrose Mass of empty beaker (g) 24.5...

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Q: Ethyl alcohol has a density of 0.789 g/cm3. What is the mass in pounds of 452 cm3 of ethyl alcohol? ...

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Q: Determine which IR is that of camphor and which is of borneol. Explain your answer.

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Q: What is the name of the compound with the formula CF4 ? What is the name of the compound with the fo...

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Q: what are the cell notations for the table 1?

A: While writing a cell notation we write anode or oxidation and in right side we write reduction react...

Q: Write the molecular equation, the total ionic equation (TIE) and the net ionic equation (NIE) for th...

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Q: A solution prepared from 96 g of non-volatile non dissociating solute in 5.25 mole of toluene has a ...

A: Given data is as follows: The mass of the non-volatile non- dissociating solute = 96 g The moles of ...

Q: The following alkyne could be prepared from smaller precursor molecules using nucleophilic substitut...

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Q: Classify the following solutions as either acidic, basic or neutral. 0.0354 M H3o* v Choose... neutr...

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Q: Predict the products of the following alcohols in reaction with PCC and draw the mechanism of their ...

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Q: The antifreeze commonly used in car raidators is C2H4(OH)2,an ethylene glycol. How many grams of eth...

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Q: The decomposition of N205 to NO2 and 02 is first order, with a rate constant of 4.80 x 10-4/s at 45°...

A: Given data: The initial concentration of N2O5 = 4.85 × 10-2 M Rate constant = 4.80 × 10-4 s-1  

Q: Can someone help me answer this? thank you Pick an organic molecule that you find interesting and de...

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Q: structural formula for the nitrite ion, NO2–

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Q: m the following reaction, ОН OH H,SO4 A + B Draw a correct structure of A and B.

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Q: What is the name of the compound with the formula BBra ? What is the name of the compound with the f...

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Q: Bromine monochloride is synthesized using the reaction Br, (g) + Cl, (g) 2 BrCl(g) K, = = 1.1 x 10-4...

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Q: The compound Pb(NO2)2 is an ionic compound. What are the ions of which it is composed? Cation formul...

A: The given compound is Pb(NO2)2. The ions in the given compound are Pb2+ and 2NO2-.

Q: Assuming the Debye Huckel Limiting Law applies, At 25°C, estimate the mean activity coefficient, of ...

A:

Electronic Transitions and Spectroscopy

The term “electronic” connotes electron, and the term “transition” implies transformation. In a molecule, the electrons move from a lower to a higher energy state due to excitation. The two energy states, the ground state and the excited state are the lowest and the highest energy states, respectively. An energy change is observed with this transition, which depicts the various data related to the molecule.

Photoelectron Spectroscopy

Photoelectron spectroscopy (PES) is a part of experimental chemistry. It is a technique used in laboratories that involves projecting intense beams of radiation on a sample element. In response, the element ejects electrons for which the relative energies are measured.