What is the frequency in hertz of blue light having a wavelength of 457 nm? x 10 Hz eTextbook and Media

Q: 25. Compute for the Partioal pressure of Carbon Dioxide of a sample, if it has a pH of 7.34 and with...

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Q: Dinitrogen tetraoxide is a colorless gas at room temperature. It can dissociate into nitrogen dioxid...

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Q: Note: I need a simple explanation for this lesson for my presentation. Thank you!

A: Polymers  are composed of many small repeating  units (monomer) joined together. Polymers having hig...

Q: For the next set of questions, select the correct state that describes the solubility, in water, at ...

A: An ionic compound dissociates in water and is said to be present in the aqueous state in water. Any ...

Q: 5) Provide the products necessary to complete the synthesis below. Indicate what mechanism was used ...

A: The mechanism of the above organic transformation is given below

Q: oblem 24.2 Which carbonyl compounds do not undergo an aldol reaction when treated with "OH in H,0? C...

A: Aldehydes  and ketones which do not contain  alpha hydrogen atom do not undergo aldol condensation r...

Q: Enter your answer in the provided box. The equilibrium constant Kp for the reaction is 141 at a cert...

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Q: Which atom in the set: Mg, Cr, N, Sn, Ba, Sn, Se would you expect to have the smallest first ionizat...

A: All the given atoms belongs to different positions in the periodic table and these positions are ind...

Q: Show how to carry out the transformation of benzene to chlorobenzene by going through a diazonium in...

A: In this question, we have to carry out the conversion of benzene to chlorobenzene by going through a...

Q: Consider the following reaction where Kc = 5.10×10-6 at 548 K. NH4CI(s)NH3(g) + HCI(g) A reaction mi...

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Q: For the next set of questions, select the correct state that describes the solubility, in water, at ...

A: As per the rules, only the first three sub-parts can be answered.

Q: Trial 1 Trial 2 Mass of ice M.. (grams) 79 79 Mass of warm water 120 119 Mer (grams) Initial tempera...

A: In calorimetry, the heat lost by one substance is gained by the other substance as there is no loss ...

Q: If 2.7 kg of Na2CO3 concentration of CO32- ? are dissolved to make 4.6 L of solution, what is the An...

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Q: identify the role of water ( acid, base, or neutral )

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Q: K. =

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Q: OXIDATION 1. Place separately in clean test tubes five drops of acetone and acetaldehyde 2. To both ...

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Q: Match the d orbital with its shape. (2) (3) (1) Orbital Selection dy d,2 - y2

A: The shape of the orbitals is determined by the contribution of the electron densities in the respect...

Q: How could you modify the structure of p-toluenesulfonic acid to lower its pKa

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Q: The pH of certain orange juice is 4.54.  The hydroxyl ion (OH-) concentration will be. a. 4.47 x 1...

A: Hydrogen ion concentration is an important parameter of an aqueous solution. The concentration of th...

Q: Part A Calculate the pH of a 0.10 M solution of barium hydroxide, Ba(OH)2. Express your answer numer...

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Q: What quantity in moles of precipitate will be formed when 100.0 mL of 2.00 M NaCl is reacted with 72...

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Q: A chemist designs a galvanic cell that uses these two half-reactions: half-reaction standard reducti...

A: A reaction is spontaneous when the cell potential is positive. Reduction takes place at cathode and ...

Q: Calculate the pH of 1.00 L of a 0.497 M hydrocyanic acid solution before and after the addition of 0...

A: As per bartleby guidelines I answered only first question so please don't mind.Thanks in advance. 

Q: The pK of hypochlorous acid is 7.530. A 59.0 mL solution of 0.138 M sodium hypochlorite (NaOCI) is t...

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Q: ature (Tg) is the temperature range where a polymer chain gains segm y of the polymer chains depends...

A: The glass transition temperature (Tg) is the temperature at which a polymer turns from a ductile mat...

Q: Trial 1 Trial 2 Mass of ice Mce (grams) 79 79 Mass of warm water 120 119 Mwater (grams) Initial temp...

A: Heat lost by substance at higher temperature is equal in amount to the heat gained by the cold body ...

Q: A chemist dissolves 203. mg of pure barium hydroxide in enough water to make up 60. mL of solution. ...

A: We have to predict the pH of the solution.  

Q: Consider the titration of 50.0 mL of 0.501 M weak base B (Kb = 7.5 x 10⁻⁶) with 0.340 M HNO₃. What i...

A: Given,  When 50.0 mL of 0.501 M weak base B (Kb = 7.5 x 10⁻⁶) with 0.340 M HNO₃. The pH of the solut...

Q: Aluminum metal and bromine liquid (red) react violently to make aluminum bromide (white powder). One...

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Q: What is collision theory? a theory stating that a chemical reaction occurs only when reactants strik...

A: As per collision theory, for a chemical reaction to occur the reactant molecules should collide with...

Q: The OH ion concentration of a blood sample is 2.6 x 10 M. What is the pH of the blood? blood O a. 1....

A: pH  =  - log [ H3O+ ]  pOH  =  - log [ OH- ]  pH  +  pOH   = 14 

Q: Uhe the efrees te access mportet val eded r thi stin Oxygen gas can be prepared by heating potassium...

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Q: The properties of the polymers are usually governed by its structure. One such import property of po...

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Q: 0.2365−g sample of a monoprotic acid neutralizes 42.90 mL of a 0.06813 M KOH solution. Calculate the...

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Q: i) CH3 KOH in CH3CH,OH H- H Br Нeat CH3 ii) 1) & HC=C-Na 2) 1 еquiv CH, ii) Os04 catalytic D. H,O2

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Q: 9. Indicate the type of complex lipid represented by each structure below.

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Q: Q.3: Calculate the atomic packing factor (APF) and coordination number (CN) for the crystal structur...

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Q: ACTIVITY 4. Solve each of the following problems and write your complete solution. 1. If you use 3.6...

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for yo...

Q: Calculate AH", AS and AG" for this reaction at 303 K, stating any assumptions that you make.

A: Equilibrium constant is temperature dependent and is expressed as ln K =- ∆H0RT+∆S0R Assuming ∆H0 an...

Q: Cu2+, Cu2* (ag) + 6 H2O, → Cu(H2O)6* (aq) 2+ (ад)

A: Cu2+ (aq) + 6H2O(l) --> Cu(H2O)62+(aq)  

Q: Use the following graph to answer the question below. y X Identify the feature of the graph that bes...

A: While plotting a graph we need to take care of the quantity to be plotted on the y-axis and the quan...

Q: TRUE OR FALSE; The carbonyl carbon in an amide and the carbon in an aromatic ring have the same hybr...

A: The hybridisation of a  particular carbon atom in a compound can be found out easily as follows,    ...

Q: HNO3(aq) + H2O (1) 2 H3O*(aq) + NO3 (aq)

A: conjugate acid–base pair consists of two substances that differ only by the presence of a proton (H⁺...

Q: Given the following mechanism: NO(9) • Fag) NO,F:(g) NO Fg) NO,F(g) + F(g) Fig) NO,(g) → NO F(9) (f...

A: Let us discuss these questions.

Q: 3- Are acids and bases more conductive of electricity than saline solutions?

A: It is asked in the question to discuss about the electrical conductivity of acids,bases and saline s...

Q: Be sure to answer all parts.The equilibrium constant (K) for the formation of nitrosyl chloride, an ...

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Q: me mole

A: Given equation: NH4CIs⇋NH3g+HCIg

Q: Bi(0TH)3-41-0 R-OH + BiloTfb-4rb0. R-0M DMF /MeDH 0. R-OAU R-0THP + DCM

A: In organic synthesis, the THP group is used as the protecting group for alcohols. 

Q: A student ran the following reaction in the laboratory at 226 K: 2 NOBR (g) = 2 NO (g) + Br2 (g) Whe...

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Q: Identify the conjugate acid-base pair in: HC6H6O6-  + NH4OH ⇌ NH4C6H6O6- +H2O

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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.