Which of the following represens the transition in a hydrogen atom showing absorption of the shortest wavelength photon? O A.n=1 to n=2 O B.n=3 to n =1 OC.n=6 to n =3 O D.n=4 to n=5

Q: Part Á The activation energy of an uncatalyzed reaction is 88 kJ/mol. The addition of a catalyst low...

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Q: Write a balanced equation for the following by inserting the correct coefficients. If the coefficien...

A: • The given unbalanced chemical equation is,      CaSiO3(s) + HF(g) →                      SiF4(g) +...

Q: Draw the line bond or Skeletal structure of the following condensed structures. a. CH,CH,CH,CH,CH,CH...

A: Skeleton structure is shorthand structure of molecules

Q: In fluorescence, the quantum yield is best defined as the: O A. number of photons emitted. O B. frac...

A: ★ Answer : In fluorescence, The quantum yield best defined as the : • Correct option is C.  "Number ...

Q: (d) () OH Br

A: 1. Select the principle carbon chain 2. Numbering 3. Naming (prefix + word root + suffix)

Q: Experimental data for the reaction 2NO2(g)+F2(g)→2NO2F(g)2NO2(g)+F2(g)→2NO2F(g) are given in the t...

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Q: E 00 Ili %24 3. When 0.126 mol of carbon is burned in a closed vessel with 9.39 g of oxygen, how man...

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Q: Which noble gas effuses 3.2 times faster than argon at 0°C (or any temperature!)? (HINT: What inform...

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Q: Which one of the following compounds is consistent with the following IR spectrum?

A: The first band in 3300- 3400  cm-1 ,it is  because of O-H streching frequency . One thing to notice ...

Q: Enough of a monoprotic weak acid is dissolved in water to produce a 0.0111 M solution. The pH of the...

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Q: What is the minim achieve equilibriu

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Q: Express the equilibrium constant for the following reaction. RbBrO3 (s) = RbBrO(s) + O2(g)

A: Given :- RbBrO3(s) <-----> RbBrO(s) + O2(g)  To write :- equilibrium constant expression for a...

Q: what compound has this given IR Spectra? 70 2725 60- 2827 50 40 2976 10 1731 4000 2000 Wavenumbers (...

A: IR spectroscopy is an important tool for the determination of the functional group in the compound. ...

Q: The C-O absorption in carboxylic acids appears around 1250 cm 1. The C-O absorption in an alcohol ap...

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Q: 11.19 Draw the structures of cis-2-butene and trans-2- butene. Which of the two compounds would give...

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Q: Present or Absent? a. CH hyperconjugation  b. Lone-pair delocalization

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Q: Methyl isocyanate, shown as resonance structure 1, can also be represented by other resonance struct...

A: Resonance structure:If the Lewis structure of a molecule or ion cannot explain by a single structure...

Q: What are the Miller indices of the slip directions: (a) on the (111) plane in an FCC unit cell? (b) ...

A: To determine the Miller indices of slip directions for the (111) plane in FCC unit cell and (011) in...

Q: e reaction

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Q: What information can proton nuclear magnetic resonance spectroscopy (1H NMR) tell you about an unkno...

A: 1H-NMR can tell about the number and type of hydrogen atoms present in a molecule by analyzing the n...

Q: HO, A B D Arrange the following according to decreasing boiling point (1 - highest to 4 -lowest). Pr...

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Q: What type of transition is caused by visible and ultraviolet radiation? O A. Electronic transitions ...

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Q: Which of the following is TRUE regarding instrumental methods of analysis? O A. these methods have h...

A: The above question is a multiple-type question. The advantages of instrumental methods of analysts a...

Q: What is the pH of a solution with hydroxide ion concentration

A:   pH = - log[H+]    At 25° C [H+]  [OH-] = 10-14  Given that [OH-] = 0.0076 M [H+] (0.0076 M) = 10-1...

Q: Consider the following reaction in chemical equilibrium: COCl2 (g) = C0(g) +Cl2 (g) What is the effe...

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Q: Starting with the following equation, P,(s) + F,(g) → PF,(9) calculate the moles of F, that will be ...

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Q: Which reagents are required to accomplish the transformation below? OH HO. А. 1.2 еq. MeLi 2. H2O B....

A: In the given reaction an ester gives nucleophilic addition reactions.

Q: 2AgNO3(aq) +CaBr2(aq) --> 2AgBr(s) + Ca(NO3)2 (aq). Calculate the excess of the excess reagent, in m...

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Q: net ionic equation

A: Since you have asked multiparts, we will solve the first three subparts for you. If you want any spe...

Q: What did you see/smell/taste/touch/hear? Observation from the baking soda and vingear balloon expire...

A: There will be chemical reaction between vinegar and baking soda.

Q: Where are the stereocenters in this chair conformation?  What is the difference between stereocente...

A: If groups attached with the particular centre is exchanged , then a new stereocentre is generated, t...

Q: e. How much is left 10. s la

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Q: End F10 Home F9 PrtScn8 F7 & Hoteling point for tin, Sn, is 232 °C and its boiling point is 4717 °C....

A: Melting point of tin = 232°C   

Q: Would you expect cyclobutadiene to be a stable molecule? Explain. H. C- H.

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Q: Predict the organic product(s) HO-CH3 CI o-CH3 O-CH3 CH30 b-CH3 I II II IV A. II В. I C. I and IV D....

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Q: A cubit is a measurement of distance from the ancient near east which is equivalent to about 1.5 fee...

A: 1 cubit = 1.5 feet and  1 meter = 3.28 feet Calculations are done in the following step.

Q: Calculate K. for the reaction.

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Q: Which is not true about the following molecule? HO It is sterol with a "open" ring It is a terpene I...

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Q: HO HBr 1. Н В 2. H30* Mg H. А C Et,0

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Q: Which process in the diagram below shows phosphorescence? Singlet excited states Triplet excited sta...

A: Phophorescence is a emmision of light,this a spin forbidin process that is this is happening between...

Q: A sólution of g/L acrylamide in than is polymerized at /L isobutyryi peroxide (initiator) whose half...

A: Given data: The half-life is t1/2 =9 hrs. The ratio is kp2 /kt=22 L⋅mol-1s-1 The molecular concentr...

Q: Which of the following is the missing reagent best used to carry out the following reaction? 1. ?, T...

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Q: r the reaction (g) + O2 (g) = 2NO(g) ssify each of the following actions by whether it causes a left...

A: According to Le-chatelier's principle, when there is any type of stress is applied at equilibrium th...

Q: A five-fold dilution was performed on a standard solution. The diluted solution will have a higher _...

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Q: reactants. The following data were collected: Trial [A][A] (MM) [B][B] (MM) [C][C] (MM) Initial rat...

A: Given : We have to calculate rate constant for the following reaction.

Q: Determine the pH and percent ionization for a hydrocyanic acid (HCN) solution of concentration 1.6 x...

A: Given: Concentration of HCN = 0.0016 M                            And Ka of HCN = 4.9 × 10-10  The p...

Q: 3-21 Draw a Newman projection along the C2-C3 bond of the following con- formation of 2-butanol.

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Q: In fluorescence, the quantum yield is best defined as the:   A. number of photons emitted, divided...

A: In  fluorescence, the quantum yield is number of photons emitted divided by the number of photons ab...

Q: 21. Which of the folowng ie the comect chemcal formue tor this moiecule? S-NH2 mage proviey Sna an a...

A: Sorry !!! Picture is not much clear but still I managed to give the solution. 

Q: In which of the following ways, absorption is related to transmittance? A. Absorption is the n...

A: We have to find relationship between absorbance and transmittance. We know that :- A = log10(I0/I)