Question 20 If a non-polar mobile phase is used in a non-polar stationary phase, the polar components in a sample will elute first. O True O False
Q: At what temperature or range of temperatures will a reaction be spontaneous if the value of H° =…
A: H° = +42.8 kJ = 42800 J S° = +331.5 J/K?
Q: The bombarded fragments leads to the formation of molecular ion which is translated into (_)?…
A: Ans : The bombarded fragments leads to the formation of molecular ion which is translated into mass…
Q: CH, NaCN H,0* d) OH OCH, 1) BМg -CH, NH ÓCH, e) 2) H,O* NH,OCH, f) H,C H.
A: d. Epoxide opening with NaCN. Cyano FG to acid FG using H3O+ e. Epoxide opening with Grignard…
Q: Reaction 1 Reaction 2 HO A Hydration B Hydroboration C Halohydrin formation D Tautomerization
A: Which one of the following is correct
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A:
Q: Use the observed potential for the Zn(s) | Zn²"(0.1 M) | Cu²"(0.1 M) I Cu(s) cell as the E" in the…
A:
Q: For the equilibrium N2O4(g) 2 NO2(g), at 298 K, Kp = 0.15. For this reaction system, it is found…
A: Kp = 0.15 PN2O4 =3.7 × 10^–2 atm
Q: 1 SIO2 Si 2 CaCl2 Са CI MnO2 Mn 4 Feo Fe 5 Fe2O3 Fe 6 H2O2 H 7 Сао Са 8 H2S S CIF3 CI F 10 NH4 H
A:
Q: What type of aromatic compound is pyridine? a. Heterocyclic aromatic compound b. Benzenoid…
A:
Q: CI Reaction 1 Reaction 2 ? NO2 ?
A: Which one of the following is correct
Q: moles of gas are present in the sample of gas occupies that 4.32 L -18°C? (Include your formula used…
A: Gas laws says, PV = nRT
Q: Which of the following molecules would be the least polarizable? O CH3CH2CH3 O SIH3SIH3 O CH3CH3 O…
A: Polar molecule: Polar molecules will form when two atoms don't share electrons equally in a covalent…
Q: Which one of these molecules is aromatic? (assume all are planar) D- B. С. D. Е. A.
A: Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: What is the pH of a solution that is prepared by dissolving 3.30 g of (NH4)2SO4 in water, adding…
A: Answer: A buffer solution is the type of solution that, on adding the small quantity of acid or…
Q: In a gas chromatographic run, anthracene peak was eluted at 7.50 min. The adjusted retention time of…
A: Hii there, As there are multiple question posted. we are answering first question. If you need…
Q: 2.What mass in grams of silver nitrate must be dissolved to prepare 5.00X102ML of 0.150M AGNO3 (MM…
A: Given: Volume of AgNO3 solution = 5.00×102 mL Molarity of AgNO3 solution = 0.150 M Molar mass of…
Q: Which of the following processes has a negative AS? A) CaCO3(s) – CaO(s) + CO,(g) B) H,0(g) – H,0(s)…
A: Entropy: Entropy can be defined as the measurement of randomness or disorderness in the…
Q: Which of the following reactions of benzene requires a Lewis acid? a Bromination b FC…
A: Given statement is : Which of the following reactions of benzene requires a Lewis acid? Options…
Q: Which amomg the fragments below will be dectected by mass Spectrophotometer? [CH3CH3]+ CH3CH3…
A: Which among the fragments below will be detected by mass Spectrophotometer?
Q: (a) the fission reaction of uranium-235 with a neutron to produce xenon-144 and strontium-90 chemPad…
A:
Q: The standard cell potential for the oxidation of Mg by Br2 is given below E0cell =3.42 V. Br 2 ( ℓ…
A: Given, Br2(l) + Mg(s) → Mg2+(aq) + 2 Br-(aq) E0cell =3.42 V
Q: Explain the following trend in the absorptions corresponding to the most energetic C–H stretching…
A: Note : Absorption frequency is proportional to bond strength. Alkyne C-H bond strength is more than…
Q: Be sure to answer all parts. Determine the percent ionization of the following solutions of phenol…
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Q: 7) Draw both the condensed and line bond structures for A) 1,3,3-trimethyl cyclohexene B)…
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Q: 4.A student dissolves 1.18g H2C204. 2H20 (MM= 126.07 g/mol) in water and titrates the solution with…
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Q: 20. Rank the following elements in order of increasing a) size, b) ionic radius, c) first ionization…
A: In the periodic Table From left to Right : Electron affinity & Ionization energy increases &…
Q: A galvanic cell consists of a Fe electrode in a 1.0 M FeSO4 solution and a Ni electrode in a 1.0 M…
A: Standard reduction potential: A solution with higher (more positive) reduction potential then the…
Q: What is the energy change when the temperature of 12.4 grams of solid silver is decreased from 37.3…
A: Given: Mass of solid silver = 12.4 g Initial temperature = 37.3oC Final temperature = 21.7oC Known:…
Q: 15. Given the following equations and AH values, determine the heat of reaction (kJ) at 298 K for…
A: Given- B2H6(g)+6Cl2->2BCl3(g)+6HCl(g) ∆H=?
Q: K for the reaction of hydrogen and iodine to produce hydrogen iodide, H2(g) + 1(g) = 2HI(g) is 54.3…
A:
Q: The concentration of Sr2* in a saturated solution of SrCrO4 is 6.29x10-3 mol/L at a certain…
A:
Q: Give the chemical structures of the following: 1. 1-octanol 2. Uknown
A: In this naming 1- octanol, the alchol group is present. -OH group is attached.
Q: A student constructs a simple constant volume gas thermometer and calibrates it using the boiling…
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Q: n Mass Spectrometry, what high energy particle is responsible is used to bombard molecule so that it…
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Q: Which of the following CAN exist as cis-trans isomers? I. CH3CH2CH=CHCH3 II. CICH=CHCI III.…
A: An isomers which have same molecular formula but different arrangements of atoms .
Q: Which bond is longest? Explain your reasoning in here in the given space A) C-O B) C-C C) C-H D) C-P…
A:
Q: The disproportionation of MnO2 (s) to Mn²+ (aq) and MnO, (aq) in acid solution at 25 °C [The…
A:
Q: Which of these atoms will be most favorable to oxidize? Ca Li Na Sr
A: Oxidation means increase in oxidation number or we can say that removal of electrons.
Q: altic What peak should be present in your starting material, salicylic acid, but missing in your…
A: First we would draw structures of compounds and check which functional group is present in salicylic…
Q: Give a clear handwritten answer and choose correct option...
A: Note : methylene group is located between the electron withdrawing groups. Therefore active…
Q: 4. Calculate the work done when 50.0 g of tin dissolve in excess acid at 1.00 atm and 25 °C: M-50-09…
A: Answer: Initially there is no gas in the container and later on through the chemical reaction…
Q: Balance the following reactions below using the change in oxidation number method. 1. PbO, + HBr →…
A: Here we have to balance the following chemical equation by change in oxidation number method.
Q: Draw the major organic product of the reaction conditions. Show stereochemistry in your structure.…
A: Major organic product of the given reaction = ?
Q: temperature 1II Amontons' Law(Volume constant) 12)a) A sealed glass tube contains neon at a pressure…
A:
Q: Calculate the pH of a 0.020 M solution of phenylacetic acid, C6H5CH2COOH. What will be the pH if the…
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Q: Is caffeine an addictive substance? If so, is it psychologically addictive, physiologically…
A: Hii there, As there are multiple question posted. we are answering first question. If you need…
Q: Charles' law (Pressure constant) 11)a) A sample of neon gas occupies a volume of 100.0mL at 20.00C.…
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Q: 50 cm3 of 0.05 M weak acid solution is titrated with 0.1 M NaOH solution. The measured pH values are…
A: Hii there, As there are multiple question posted. we are answering first question. If you need…
Q: 0.0524 moles of h2o equals how many molecules of water?
A: Number of moles of H2O (water) = 0.0524 moles Number of molecules of water = ?
Q: Which of the following reaction is a spontaneous rearrangement of enol hydration products into a…
A: Reaction which involves simple proton transfer in an intramolecular fashion is called a tautomerism.…
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- Why do polar molecules have a greater tendency to remain a liquid or a solid at room temperature?For each compound in the table below, decide whether there would be any hydrogen-bondir of the compound and molecules of water. compound hydrogen-bonding force Between Between molecules of formula or Lewis molecules of the compound? the compound and molecules of water? name structure H :O: yes yes acetic acid Н-с — с — о — н no no H. yes yes formyl chloride CHOCI no no H yes yes methanol H - C-0- H no no H.Yellow Food Dye Water OH HO OH HO OH HO HH HO. e OH Analysis Question 2: What type of attractions occur between the dye and the water based on their molecular structures?
- For each compound in the table below, decide whether there would be any hydrogen-bonding force between molecules of the compound, or between molecules of the compound and molecules of water. compound hydrogen-bonding force formula or Lewis structure Between molecules of the compound? Between molecules of the compound and molecules of water? name :0: formic acid O yes O yes H -C - 0-H O no О по H H N-chloromethylamine H-C-N - O yes O yes O no O no H. formyl chloride CHCIO O yes O yes О по O noFor each compound in the table below, decide whether there would be any hydrogen-bonding force between molecules of the compound, or between molecules of the compound and molecules of water. compound hydrogen-bonding force Between Between molecules of formula or Lewis the compound and molecules of water? name molecules of the structure compound? H H yes yes methylamine C | no no H. yes yes difluoromethane CH,F2 no no yes yes hypobromous acid HBRO no no O OO O O O2 4 5 6 7 For each compound in the table below, decide whether there would be any hydrogen-bonding force between molecules of the compound, or between molecules of the compound and molecules of water. compound hydrogen-bonding force formula or Lewis Between molecules of the name Between molecules of structure the compound and molecules of water? compound? yes yes hydrogen iodide HI no no yes yes NH3 ammonia no no н :0: н yes yes Н—с —с-о — н no acetic acid no Н ? x 5 Submit 2019 McGraw-Hill Education. All Rights Reserved Terms o Continue MacBook Pro F.O F8
- compound hydrogen-bonding force Between Between molecules of formula or Lewis the compound and molecules of water? name molecules of the structure compound? H :ċi: yes yes N,N- dichloromethylamine H - C -N | no no H yes yes ammonia NH, no no yes yes hydrogen chloride HCl no no O Ohow are water molecules bonded to the metal ion in KTOF3If the inside surface of each tube were coated with wax, would the generalshape of the water meniscus change? Would the general shape of themercury meniscus change?
- For each compound in the table below, decide whether there would be any hydrogen-bonding force between molecules of the compound, or between molecules of the compound and molecules of water. compound hydrogen-bonding force Between Between molecules of formula or Lewis molecules of the the compound and molecules of water? name structure compound? О yes О yes hydrogen chloride HCl no no yes yes hydrogen fluoride HF no no H :ci: N,N- yes yes H - C-N dichloromethylamine no no H O OWhat defines a polar molecule? What is hydrogen bonding?is sulfur tetrachloride polar or nonpolar?