the

Q: 5. A 2.50x10-5 M solution of a specific dye has an absorbance value of 1.300 when measured at 525 nm...

A:

Q: 18.) Which value: n (Principal),  l (Angular), ml (Magnetic) or ms (Spin) would you change to make t...

A: n=2 valid l= 1 valid m= -1 valid ms= 0 not valid Spin value is either +1/2 or -1/2 but can't be 0 so...

Q: What type of reaction is shown below? H a. Homolytic bond cleavage ob. Elimination O. Rearrangement ...

A: Heterolytic Bond cleavage  Option E is Correct Answer.

Q: Please help :)

A: OPTION- B IS CORRECT CHOICE ACCORDING TO ME AS BOTH CH3 GROUP IS ANTI TO EACH OTHER IN NEWMAN PROJEC...

Q: In the bromination of stilbene experiment, trans-stilbene (E-stilbene) is used. If cis-stilbene (Z-s...

A: Stereoisomers are compounds with same chemical formula but different spatial arrangements. Enantiome...

Q: What would be the final product, F, of the following sequence of reactions?

A: LAH is LiAlH4, a reducing agent that converts carboxylic acids into primary alcohols. PBr3 usually c...

Q: What would be the multiplicity of a 1H signal having 4 equivalent 1H neighbors and what would be the...

A: Spin-Spin Coupling: The splitting of the peaks in NMR for proton having n equivalent neighbouring pr...

Q: A steam of gas at 70oF, 14.3 psia and 50% saturated water vapor is passes through a drying tower whe...

A:

Q: Which of the following would be a stronger base considering the following pkb values? O 1.39 O 3.49

A:

Q: write the cocndensed structural formula of 3,5 dihydroxyoctan-4-one

A:

Q: 2.) What is the wavelength (in nanometers) of light that has a frequency of 8.60 X 1014? Write your ...

A: Dear student I have given answer to your question in the image format.

Q: Which reaction would have a reaction energy diagram like the one shown below: Reaction Coordinate a....

A: Answer below

Q: Convert 3.56 Hz frequency into wavelength,

A: Given :- frequency = 3.56 Hz  To calculate :- wavelength (in cm)

Q: 4

A:

Q: Weak acid and strong base titration A 20-mL sample of 0.1N HAc was diluted with sufficient water to ...

A: As, molarity = n × normality Molarity = 1 × 0.1 = 0.1M CH3COOH  So, molarity of CH3COOH solution = 0...

Q: What volume of 0.380 M  KMnO4 would be required to titrate 0.33 g  of  K2[Cu(C2O4)2]⋅2H2O?

A:

Q: (a) How many milliliters of 0.165 M HCl are needed to neutralize completely 35.0 mL of 0.101 M Ba(OH...

A: using N1V1 = N2V2  

Q: Student Name: Data Trial 1 Trial 2 Mass of flask, rubber band, and foil (g) 143.2 92 143.44 136.91 9...

A: Please have a look on the solution below:

Q: 10.) How many values of the magnetic quantum number are possible when the angular quantum number is ...

A:

Q: A reaction has a standard free-energy change of -13.20 kJ mol-(-3.155 kcal mol-). Calculate the equi...

A:

Q: 7) Hypothesize why solutions of NaCl conduct electricity, but solid NaCI does not

A: For electrical conductivity,  solution must have free ions in order to conduct the electricity. 

Q: How can dilution can sometimes affect the conductivity in solutions

A: On dilution, the equivalent conductivity and the molar conductivity increases. This is because the d...

Q: Write a balanced half-reaction for the reduction of liquid water  H2O  to gaseous hydrogen  H2  ...

A: balanced half reaction in basic medium is shown below:

Q: A chemist must dilute 87.0mL of 8.34mM aqueous calcium sulfate CaSO4 solution until the concentratio...

A: mmoles of standard Solution = ( volume • concentration )  Note : 1mM = 10^-3 M  mmoles of standard S...

Q: A chemist prepares a solution of barium acetate BaC2H3O22 by measuring out 52.6g of barium acetate i...

A: Number of moles = mass/molar mass  Molarity = moles/volume of solution(in L)

Q: Which of the following formulas best conveys the equilibrium expression for the following reaction?2...

A:

Q: Ka1 for hydrosulfuric acid, H2S, is 9.5 x 10−8, and Ka2 is 1.0 x 10−19. What is the base-dissociatio...

A:

Q: If the entropy for a chemical change at 27°C is -10 J/K and ΔH for the reaction is -20 kJ, ΔG is __....

A: Given :-  ∆H = -20 KJ  T = 27°C  ∆S = -10J/K  To calculate :- ∆G

Q: 29.) Give the symbol of the element with the electron configuration 1s2 2s2 2p6 3s2 3p4

A: The question is based on the concept of electronic configuration. we have been given electronic conf...

Q: A volume of 500.0 mL of 0.160 M NaOH is added to 625 mL of 0.250 M weak acid (Ka=4.12*10^ -5 ) what ...

A: Given, [NaOH] = 0.160 M Volume of [NaOH] = 500mL [weak acid] = 0.250 M Volume = 625 mL Let's conside...

Q: Which of the following correctly describes the relationship of the molecules shown to Compound A? HO...

A: B- MESO C- DIASTEREOMERS D- DIASTEREOMERS

Q: The attatched image has my question.

A: a) The reaction will be, CrIO33 ⇔ Cr3+aq + 3IO33-aq The solubility of Cr(IO3)3 is, Ksp = s  3s+0.253...

Q: Calculate the concentration of the chemist's working solution.

A:

Q: Identify the equation that shows the anion functioning as a base in the correct manner. O HPO,2 (aq)...

A: Option No.- 1 anion behave as base as it abstract proton from H20 to make it OH-

Q: If the pKa of HF is 3.14 and the pH of an HF/NaF solution is 3.04, then [HF]=[F] [HF]>>[F] [HF][F°] ...

A:

Q: Calculate the percent C2O2−4 in K3[Al(C2O4)3]⋅3H2O.

A:  the percent C2O2−4 in K3[Al(C2O4)3]⋅3H2O.

Q: Chemistry

A: Since the given reaction is an aldol condensation by LDA so here in the first stem  Formation of eno...

Q: It requires 945.0 kJ/mol to break N2 molecules into atoms. Calculate the maximum wavelength of light...

A:

Q: The combination that always gives a spontaneous process is __. a) +ΔH                       +ΔS b) +...

A:

Q: Acids and bases 1. Change the acid concentration from 0.001 to 0.1 a) What is the multiplication fac...

A: "Since there are multiple sub-parts in this question and it is not mentioned that which one has to b...

Q: Choose the correct reagents from the following list:

A:

Q: Question 2 Which of the following would be a stronger base considering the following pKp values? O 1...

A: The species which has the lower pKb values will be a strong base. 

Q: For this reaction SiO2 + C > Si +CO2, 52.8g SiO2 is reacted with 25.8g C and 22.4g Si is produced...

A:

Q: Dilution A chemist must dilute 75.7 ml of 2.28 mM aqueous copper(II) fluoride (CuF ,2) solution unti...

A: To solve this problem we will use the equation  M1V1 = M2V2  Here M is the concentration and V is th...

Q: The steel-making process described in the Transition Metal section of the Elements Handbook shows th...

A: When two reactive compounds are mixed, then they react according to the stoichiometry of the balance...

Q: What is the electron geometry and molecular shape of PF3 respectively?

A:

Q: 30.) Give the symbol of the element with the largest ionization energy from group 4A (14).

A:  In group 4 A carbon has got the highest ionization energy amongst the given choices. As the ionizat...

Q: How many kilojules are required to melt 15 g of ice at 0 C, and raise the temperature of the liquid ...

A:  kilojules are required to melt 15 g of ice at 0 C, and raise the temperature of the liquid that for...

Q: A saturated AgCl solution was analyzed and found to contain 1.25 x 10-5 M Ag+ ions.  Use this value ...

A: We know that, Ksp is the solubility product of any salt, and is as below :  For a reaction, AgCl ---...

Q: Many polar liquids are fully miscible with water. What phenomenon explains this observation? A) P...

A: Solubility of a substance in water is governed by water-solute interaction. Many polar liquids are f...

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.