01- Ordene a maior e a menor frequência de vibracional na região do Infravermelho (IV) dos seguintes grupos de moléculas, justificando a resposta com base nos princípios da espectroscopia de infravermelho: H2 H3C-C-CH3 a) Vc-c H3C-CECH H3C-C=CH2 b) Vc-x H3C-D R3C-CI R3C-H R3C-CR3 NHO HN- c) Vc=0

Q: Combustion of a 1.450 g sample of glucose yielded 23.01 KJ of heat. The calorimeter contained 1.900 ...

A: The final temperature will be 24.18°C.

Q: Provide an IUPAC name for the compound below. ball & stick + labels (Specify (E) or (Z) stereochemis...

A: If the same groups are on the same side then the configuration will be "Z" for alkenes.

Q: Which of the following molecules have tetrahedral molecular geometry? Support your answer by showing...

A: Given molecule : IF4-

Q: 13. Write down a mechanism for the following reaction with proper reagent(s). Br ?? Ph. Ph Ph Ph Ph

A: the mechanism would be:  

Q: As much as 8 grams of NaOH (Mr = 40) is dissolved in water until the volume of the solution becomes ...

A:

Q: Evaluate each pair of statements and choose from the following which condition is applicable: Statem...

A: We have to clarify whether the statement true or false.

Q: Predict the shape (molecular geometry) of the following molecules or ions by filling up the table be...

A:

Q: 8) Which one of the following is not a valid value for the magnetic quantum number of an electron in...

A: Note - Since you have asked multiple question, we will solve the first question for you. If you wan...

Q: Direction Using the phase diagram (shown below) for water, determine the state of H2O at the followi...

A: The triple point of the phase diagram gives information that all three phases (solid, liquid and gas...

Q: The rate constant k for a certain reaction is measured at two different temperatures: temperature k ...

A: given,       temperature             k     117.0 0C      4.3 *  107     -24.0 0C      1.9 * 1...

Q: OH

A:

Q: Which of the failowingis the reaction quotient expression for the ionization of NH, n water? The equ...

A:

Q: The mass of a beaker is 8.342 grams. After 3.00 ml. of an organic liquid is pipetted into the beaker...

A: Mass of beaker = 8.342g  Volume of liquid = 3ml Mass of beaker + organic liquid = 10.697g  

Q: Draw the resosnance structures of the given charged molecule

A: Answer - Resonance structure - Resonance structures are sets of Lewis structures that describe the d...

Q: give the mechanism and resonance structures CH,CO,H H,SO,

A:

Q: The equilibrium constant, Kc, for the following reaction is 5.10x10-6 at 548 K. NHẠCI(s) NH3(g) + HC...

A: Given, Kc = 5.10 x 10-6

Q: 13 Graph a can best be described as First order or second order rate process Second order rate proce...

A: The options are as follows:  

Q: 3. Rank the following in order by the rate in which they could participate in an SN1 reaction (“1" b...

A:

Q: A 50.0 mL of 0.20 M ascorbic acid (see Appendix) is titrated with a 0.20 M NaOH solution. Calculate ...

A:

Q: E) Attractive and repulsive forces between gas molecules are negligible. 7) The value of AH° for the...

A:

Q: Consider the reaction: N204(g) 2NO02(g) Write the equilibrium constant for this reaction in terms of...

A:

Q: en that must be added at 35 C to change the volumetric analysis to 50% of each component.

A: We have, V=3m3 ,P=101kPa,T=35o C+273k=308k,YCH4 =60%100% =0.60YO2 =40%100% =0.40

Q: Use arrow pushing to explain the given reaction

A: Here we have to write curve arrow movement of pair of elctrons in the following carbocation rearrang...

Q: Which statement best describes the properties of NaCl?   Question 1 options:   It is an inorganic ...

A: NaCl is an inorganic compound commonly named as table salt. It is an ionic compound formed by donati...

Q: . explain the results of the experiment  Table 1 Absorption Spectrum of Cobalt Chloride Using a Spe...

A: Solution: We know in spectrophotometric/ colorimetric experiment, concentration of the unknown compo...

Q: how the equilibrium equations for the ionization of CH3COOH and KH2PO4.

A: Given,  Show the equilibrium equations for the ionization of CH3COOH and KH2PO4 = ?  

Q: In a test tube with 0.3 mL of N-methylaniline, 5 mL of 10% NaOH, 0.4 mL of benzene sulfonyl chloride...

A: the solution is as follows:  

Q: A student removes 25 mL of 3.0 M NaOH and dilutes it to final volume of 350 mL. What is the concentr...

A: Given :-  initial concentration of solution = 3.0 M  initial volume of solution = 25 mL  final volum...

Q: A bomb calorimeter must be calibrated to determine the quantity of heat that will be absorbed by its...

A: Given , mass of benzoic acid = 0.5125 g heat yielded = 22.37 kJ mass of water = 1.500 Kg Change in t...

Q: Differentiate between a synthesis experiment and a technique experiment.

A: Answer - According to the question - We know that - An experiment is a procedure designed to test a ...

Q: initial rate of reaction

A:

Q: 4. Balance ead

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

Q: Which compound represents butane?   Question 7 options:   CH3CH2CH2CH3   CH3CH2CH3   CH4   CH3C...

A: • We need to determine which compound in the given option represents butane 

Q: The equilibrium constant, Kc, for the following reaction is 1.20x10-2 at 500 K. Calculate K, for thi...

A:

Q: Calculate the percent error of the density of ethanol is measured to be 0.73 g/mL (true value is 0.7...

A: The formula for percent error (PE) is - PE = (| MV - TV |)/ | TV | Where, MV = measured value       ...

Q: Devise a synthetic strategy to complete the following transformation. HOʻ

A:

Q: 1. Plot (and cite examples) the titration curve of the following: a. strong acid vs strong base b. s...

A: Introduction :  Acid Base titration is a type of titration in which we have one acid or base and we ...

Q: Arrange the three types of cubic unit cells in order of increasing packing efficiency. What is the ...

A: Packing fraction is the ratio of the space occupied by the atoms to the space available . Packing ef...

Q: Consider the following reaction and initial rate data: 2H2 (g) + 2NO (g) → 2H,0 (g) + N, (g) [NO]ini...

A:

Q: Consider the reaction and its rate law. 4 A + 3 B –→ products = k[A}°[B]* What is the order with res...

A: Chemical kinetics is branch of chemistry in which we deal with speed at which rate of reaction occur...

Q: 72. At 25°C, K, for PbBr, is equal to 8 x 10. If the salt is 80% dissociated, what is the solubility...

A: 72. For the dissociation of PbBr2 ,      PbBr2 (s)   <---->   Pb2+(aq)   +  2Br-(aq)     Ksp  ...

Q: The density of copper is 8.92 g/ml. and the density of lead is 11.35 g/ ml. If equal masses of coppe...

A: Density is the ratio of mass to volume.  Density =  mass / volume    Density is directly proportiona...

Q: Kp %3D II

A:

Q: grams

A:

Q: 2.50kcal to J

A: given, The value 2.50 kcal in joules is:

Q: At a certain temperature this reaction follows first-order kinetics with a rate constant of 4.6 s 2H...

A: Given reaction: 2H3PO4 (aq) → P2O5 (aq) + 3H2O (aq) Given, the initial concentration of H3PO4 = 1.39...

Q: 1) Circle and name 2 amino acids NH2 HN HO, HN HN NH NH HN HN NH HN

A: In the given structure, we have to find two amino acids. The name of two amino acids and their struc...

Q: COH OH COCH3 What would be the product if NaBH4 was used?

A: Sodium borohydride, NaBH4 is a reducing agent and it can selectively reduce a carbonyl functional in...

Q: ETHANOL Sp.Gr.- 0.791 A cylindrical unknown solid material with a diameter of 10cm and a height of 3...

A: Given: Height of unknown cylinder = 30 cm = 0.3 m  Diameter of unknown cylinder = 10 cm = 0.1 m  We ...

Q: 74. What is the concentration of Ba" when BaF, (Kp = 1.0 x 10) begins to precipitate from a ds. solu...

A: 74. The solubility product ( Ksp ) of a sparingly soluble salt is defined as the product of the mola...

Applications of Molecular Spectroscopy

When light sources pass through the diffraction grating then light splits into different wavelengths. The light source produces two types of patterns that are shown as destructive and non-destructive. The light source is in the form of quanta that is quantitation.