Q: What is the change in oxidation number for the carbon indicated by an asterisk in sucrose and carbon…
A: Oxidation number: The covalent bond between the atoms of different electronegativity is polar. If we…
Q: Which color of light from the visible spectrum has the most and least energy? Why? What are…
A:
Q: Question 8 Listen Use the standard enthalpies of formation to find the AHreaction for the reaction:…
A: Here we are required to find the change in the Enthalpy of the reaction.
Q: A takes polychromatic light and provides monochromatic light to pass on to the sample and then…
A: Monochromatic light : The light having single wavelength is called monochromatic light and light…
Q: Calculate the concentration of HCO3 in an aqueous solution of 2.57x10-2 M carbonic acid, H₂CO3 (aq).…
A:
Q: 1. Carbon dioxide gas reacts with water to form carbonic acid. The presence of the carbonic acid is…
A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: Which of the following gases has the lowest average speed at 25 Celsius? a) H2Se b) PH3 c) C2H6 d)…
A: Average speed of gases can be determined by the maxwell distribution of gases and we used following…
Q: Water striders are insects that have the ability to walk across the surface of water. Which…
A: The tendency of a liquid to shrink into the minimum surface area possible is known as surface…
Q: O 1 yeast, ethanol is produced from gruesse under anderable haitions. A cell-free yeast extract is…
A: Moles of glucose = 3.00x 10 2 m mol
Q: Arrange the following compounds in increasing order of polarity (from less polar to more polar). *…
A: Beta-carotene is a hydrocarbon and is non polar. Chlorophyll A and Chlorophyll B consists C-O and…
Q: Using the conjugate acid-base pairs listed below, complete the following equation with the pair that…
A: Handwritten solution is given below:
Q: iv. V. vi. OH NH3 pH 4.5 NH₂ PPh3 NH₂OH pH 5 i. CH3Li ii. H₂O
A:
Q: Draw the major product of this reaction. Ignore inorganic byproducts.
A: Given : structure of reactant Tip : first nucleophilic attack then protonation will occur.
Q: Choose the BEST statement from the options below.
A: According to modern periodic table the physical properties and the chemical properties of the…
Q: 5) Which one of the following statements is true? The enthalpy change for a for a reaction is…
A:
Q: 4. You have two samples of KI. You measured the amount of K and I in one sample. You were only able…
A: #4:(a): Actually we have to find how much of K was in the second sample, not Cl. In order to find K…
Q: If a molecular species absorbs a photon of UV light, which of the following transitions will occur?…
A: Answer: A molecule absorbs light of different energy region , it will get absorb and different types…
Q: 14% H add 60: OH. H do 30 amous hee 1.0 H H :: HCL, H2₂0 HCL, H₂O H : 0% 11 H H OH -H HCL, H₂O $ ::0…
A: While writing mechanism represents arrow electron rich center to electron poor center.
Q: ا۔ t-bvo-
A: Organic reaction
Q: 13. Provide the structure of the major organic product in the reaction below. H₂O, H+ CH3CH₂OH, H+
A: In the given question we have to do the following reaction, In the first reaction we have to do the…
Q: how much water needs to be added to a 300 ml of 3.0 M solution to obtain a final solution with 2.0…
A:
Q: Consider for xenon the critical constants Tc = 289.73 K and pc = 5.840 MPa and a. b. Calculate the…
A:
Q: 23. A standard dose of an over-the-counter cough suppressant for adults is 20.0 mL. A portion this…
A: Given: Volume of dose of adult = 20.0 mL adult dose contain = 35 mg Volume of dose of child = 10.0…
Q: Draw the major product of this reaction. Ignore inorganic byproducts.
A: Given : structure of reactant Tip : grignard reagent will attack on carbonyl carbon then work up…
Q: Why is water so effective at hydrogen bonding? Choose 1 answer: B D There are two hydrogens,…
A: Electronegativity of oxygen atom is greater than hydrogen atom. Hence oxygen atom attract electrons…
Q: 12) Which of the following represents a chemical property of copper metal? borts
A: we have to select the chemical property of copper metal from the given statements
Q: What is the pH of 0.46 M F- solution? Ka=1.5x10-6. Report your answer to 2 decimals.
A:
Q: Which compound is more reactive and why ??
A:
Q: 19) Butyric acid, found in rancid butter, has a molar mass of 88 g/mol. If butyric acid is 54.5% C,…
A:
Q: 2A+7B-->5C+D If you started with 0.30 moles of A, how many moles of C should you theoretically end…
A:
Q: A 100 mL buffer solution that is pH 8.06 buffer is prepared by first adding 0.45 grams of RNH2…
A: pH of a basic buffer = 14 - pOH pOH = pKb +log [Conjugate acid][base] M1V1 = M2V2 (Dilution law)…
Q: Cu Fc S O 4 Cu H2₂ 504 На Cu Mg 504 Cu Zn S04 Cu Na 2 SO 4
A: When a more reactive metal is added to a solution containing less reactive metal salt, single…
Q: Select the major product. O O OEt z OET OEt OET OEt
A: We have to give the major product of the given reaction. Concept: Claisen condensation reaction.
Q: To answer this question, you may need access to the periodic table of elements, a calculator, and…
A: Lewis’s structure: Lewis’s bonding theory is based on the octet rule. The Lewis structure is a…
Q: 21) How many ammonia (NH3) molecules are there in a 115-g sample of ammonia? 3.07 x 1020 molecules…
A:
Q: Complete the table below indicating what is important in each category for an E1 or E2 reaction. E1…
A:
Q: In which of the following aqueous solutions would you expect silver sulfide (Ag2S, Ksp = 2 x 10-51)…
A: Since you have asked multiple questions, we will answer the first question. If you want any specific…
Q: Curved arrows are used to illustrate the flow of electrons. Follow the arrows and draw the first…
A: The Grignard reagent reacts with the carbonyl compound (aldehyde) to give alcohol. If the Grignard…
Q: In what type of reaction is K2Cr2O7 a reactant?
A: The addition of electrons or decreases in the oxidation state is known as a reduction reaction and…
Q: 2. Complete the table below indicating what is important in each category for an E1 or E2 reaction.…
A:
Q: Give me a clear handwritten answer with explanation. Please give answer sub parts.
A: Amine reacts with carbonyl compounds by nucleophilic addition reaction mechanism. The product formed…
Q: For the following reaction, Kc = 6.42 at 3.46°C: A2 + B2 ⇌ 2 AB What is Kc at the…
A: Factors of equilibrium constant: 1. If reaction is multiplied by a factor of n then the equilibrium…
Q: Which of the following best describes the difference between a cation and an anion Choose 1 answer:…
A: Cation and anion are both ions. Both have opposite electrical charge. Due to have opposite charge…
Q: . To four significant figures, what is the molarity of pure water? Show all work.
A:
Q: Using Titration to Determine the Identity of an Unknown Acid 5. An unknown acid is titrated with…
A: The above titration curve look like weak achid vs strong base (NaOH). From Henderson-Hesselblech…
Q: A. Liquids are moved from one container to another using a pipette, droppers, and volumetric flasks.…
A:
Q: Few follow up questions, How was the 8.314 found? Delta E would mean the free energy right?…
A: We have to answer the following questions. How was the 8.314 found? What was ∆E? Why divide it as…
Q: Classify each of the following organic reactions. reaction CI a d D HCI Cl₂ H₂O HO 1) BH₂ THF 2)…
A: The given reactions are examples of the addition reactions of an alkene with different reagents.
Q: 6) The wavenumber of the fundamental vibrational transition of 79Br³¹Br is 323.2 cm¹. Calculate the…
A:
Q: A 10.0 L flask contains a mixture of neon and argon gases at a pressure of 2.38atm. Calculate the…
A:
For the maxima given in the UV spectra of Figures 8.51-8.53, determine the value of A and of log € (epsilon).
Trending now
This is a popular solution!
Step by step
Solved in 4 steps with 2 images
- The way a molecule fragments in a mass spectrometer depends upon OA. all of the them B. the stability of the fragments C. the structure of the molecule O D. OE. the energy of the electron beam hitting the molecule the bond strengthsButyronitrile 1-hexyn-3-ol 2-ethyl-1-butene 4-pentenyl acetate 50 1000 S00 3000 2000 4000 NAVENUMB ERI-1 Functional group Critical absorbance frequency(ies), cm1 Identity: TRANSMETTANCEI2Molecular Formula: C10H14 8 LOD TRANSMITTANCE1% D 4000 STRUCTURE: mult. t 2.72 q 6.90 S d t ppm 1.18 7.11 7.53 3000 H 6 4 1 2 1 5 2000 SPECTRUM 5 4 PPM HAVENUMBERI-L 1500 3 1000 500
- The following two mass spectra represent 1-bromo-4-ethylbenzene and (1-bromoethyl)benzene, respectively. 100 - MS-IU-9451 Spectrum 1 80 - 60 40 20 - 25 50 75 100 125 150 175 m/z 100 - MS-NU-8350 Spectrum 2 80 - 60 20- 20 40 60 80 100 120 140 160 180 200 m/z 1. Assign each spectrum to one compound 2. Justify your assignment by assigning relevant signals in each spectrum. 3. Explain how you could determine which spectrum belongs to which compound. Relative Intensity Relative IntensityThe spectra (IR, ¹H NMR, ¹³C NMR and MS) of an unknown compound are shown in the following spetta. Based on these spectra, determine the structure of the unknown compound. Explain your answers clearly for each spectrum. Absorbance/% IR 2000 1500 1000 500 50- 100+ 4000 11 1H NMR 3000 Integration 9 10 2500 7.95 7.25 U 2 2 8 7 Wavenumbers/cm-1 6 5 ppm 4.30 2 3 2.35 3 2 1.35 3 T 1 OUnrounded Rounded ε∗,L/μmol 0.0259825 0.0260 Heres the data if needed: TZ # Concentration Absorbance at 430 nmnm 1 33.6480 0.931 2 25.2360 0.757 3 16.8420 0.210 4 8.41200 0.137 5 4.20600 0.122
- Which data point in your standard curve is the most important in determining the best straight line 1. through your data? Why? Which is the second most important? Why? pathlength cell displays % T of 50.0 what is the Absorbance of the solution and what is the absorptivity (in /cm-mole). What Absorbance would be expected for a 5.0 x 10-6 M solution? What % T would this correspond to? 2. A solution of a light absorbing species with a concentration of 1.0 x 10-5M in a 1.0 cm[X] (ppm) 0.00 10.0 15.0 20.0 25.0 30.0 35.0 x-axis Resources UV-Vis absorbance data for molecule X collected at 425 nm using a 3.50 cm cuvet is given in the table. [X] (M) 0.00 1.00 × 10 4 1.50 × 10-4 2.00 × 10-4 2.50 × 10-4 3.00 x 10-4 3.50 x 10-4 O %T %T T A 100.0 1.000 0.000 49.4 0.494 0.306 34.9 0.349 0.457 25.3 0.253 0.597 17.3 0.173 0.761 15.4 0.154 0.813 13.9 0.139 0.857 Prepare a plot using the linear range of the data to determine the molar absorptivity. What should be plotted on each axis to determine the molar absorptivity of molecule X at this wavelength? x Give Up? y-axis Hint OT 8:1VV) 8 8 7 18) Chemical Formula: C9H₁20 IR: Strong broad peak at 3200 cm-¹ 5H 5 6 -10 1H 4 PPM 1H 3 PPM ~ 9x2=18+2=20=12=8/2=4 -3 2H N- → −2 O 3H
- 5 Molecular formula = C7H₂O₂X, where X is an atom you have to determine MS: Shows molecular ion peaks of near equal intensity at m/z = 204 and m/z = 206 IR: strong absorption at 1699 cm.¹ 3H 2H 2H 160 2H 140 120 100 PPM 80 PPM 60 2 peaks 40 ¹H spectrum 13C spectrum 209-What is the structure of the compound that gives the following infrared spectrum? a- Alcohol b- aldehyde c- Ketone d-Alkene e- Carboxylic acid TRANSMETTANCE HIT-NO-1322 SCORE= [ BUTYRIC ACID C4H₂O₂ 4100 3000 ] SDBS-NO=1227 2000 MAVENUMBERIE IR-NIDA-01956 : LIQUID FILM M/M 1500 1000 500CH3 CH3 OH H Br 100 20 3sea capillary fi in betueen salt plates 2sae 15ea LAVENUMBERS Copuright 1992 6ae. e In the space below sketch the Mass Spectrum of the compound circled above. Show up to 3 possible fragments. Be sure to note which is the base peak; and which is the molecular ion (M*). Abundance m/z -esg. 128 LOTT LEST * TRANSMITTANCE