How many moles of Nitrogen gas (N2) is present in a sample if it exerts a total pressure of 1.18 atm in a 20.0-L container if kept at 30°C?

Q: The more carbon atoms, the more soluble it is in water.  True or False

A: Polar molecules are the molecules having zero dipole moment and non polar molecules have non zero…

Q: Compare the wavelength for an electron (mass = 9.11 * 10-31 kg) traveling at a %3D speed of 1.0 *…

A:

Q: Given is teh mass spectogram of an unknown compoound. This unstable cyclic compund is a colorless…

A: Note : The compound name is cyclohexene. (See below).

Q: Consider the reaction: 2H,0,(1)-2H,0(1) + 0,(g) Using standard absolute entropies at 298K, calculate…

A: Number of moles of H2O2 = 2.30 mole

Q: Balance the equation in acidic conditions. Phases are optional. equation: H,AsO, + I, → H,AsO, + I-

A:

Q: 7. Assume that each of the following atoms reacts with ,hydrogen: (i) boron; (ii) silicon; (iii)…

A: Since you have asked multiple question, we will solve the first question for you.If you want any…

Q: 7. Consider reaction H2(g) + Cl2(g) + 2HCI (g) AH = -184.6 kJ/mol If 3 moles of H2 react with 3…

A:

Q: Which of the following substituent is an ortho/para-directing activator and an ortho/para-directing…

A: Ortho/para and meta directing groups on benzene are depends upon the nature of the groups. If the…

Q: 12. Calculate the heat of formation for the following reactions from the standard enthalpies of…

A: (a) 2H2(g) + O2(g) ----> 2H2O(l)  The enthalpies of formation for different Molecules/substances…

Q: Calculate ΔH° for the reaction using the given bond dissociation energies.…

A: This is a combustion reaction of methane.

Q: 1.Which of the following substances have a solvatochromic property? a.potassium hydrogen phthalate…

A: According to Q&A guidelines of Bartleby, we are supposed to answer only the first question out…

Q: Question 33 use the following standard chromatogram of caffeine: 80 I mg/L 5 mg/L 10 mg/L 20 mg/L 30…

A: A question based on concentration terms that is to be accomplished.

Q: As the concentration of reactants decrease, the rate of the reaction generally O increases. O cannot…

A:

Q: Which of the following combinations will add up to 5 IHD? A Two double bonds and two rings B One…

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Q: t (e) Substance X is known to exist at 1 atm in the solid, liquid, or vapor phase, depending on the…

A: The temperature versus heat supplied graph for compound X is needed to be drawn, given that the…

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.…

Q: Infrared radiation is higher in energy than UV radiation. True O False

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Q: A 1-butyne can undergo one-time elongation via acetylide formation reaction using sodium amide and a…

A: Note : Terminal alkynes react with base produces the anion and reacts with alkyl halides produces…

Q: How many grams of NH3 can be produced from 40.0 grams of CaCN2? CACN2 + 3H20 CACO3 + 2 NH3

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Q: Draw the major organic products for this reaction. Show stereochemistry in your structures. Then in…

A: Syn Hydroxylation of alkene :

Q: The equilibrium constant, Kp, for the following reaction is 0.497 at 500K. PCI5(9) PCI3(g) + Cl2(g)…

A: Answer: Given data at the equilibrium of thermal decomposition of PCl5…

Q: In a closed vessel, 3.2 grams of carbon monoxide reacted with 14.6 grams of 02 Based on the given…

A: For the reaction -  CO + 1/2O2 ---> CO2  Mass of CO = 3.2 g  Mass of O2 = 14.6 g  Thus , 3.2 g CO…

Q: It contains a vinyl group attached to benzene. Imagine it reacting with KMNO4 in acidic medium. What…

A: Which one of the following is correct

Q: Which of the following statements about the setup of thin layer chromatography is FALSE?     The…

A:

Q: Question 4 Which significant information given below CANNOT be derived from mass spectra? molecular…

A: Mass spectra used for determine the exact molecular weight of the sample , unknown compound

Q: Draw the correct Lewis structure for each of the following using the Octet Rule. (Show the total…

A:

Q: Given is teh mass spectogram of an unknown compoound. This unstable cyclic compund is a colorless…

A: Note : The compound name is cyclohexene. Cyclohexene on retro Diels Alder reaction produces the m/z…

Q: ? H3C-CH-CH3 CH3CH2CH2B Br

A: ->There occur first of all elimination reaction and alkene formed. ->Then anti - markovnikov…

Q: sulated, rigid tank contains 1.9 kg of helium at 30 °C and 580 kPa. A paddle wheel, with a power…

A:

Q: 6. For each numbered step in the qualitative analysis scheme in number 5 above, type all net ionic…

A: When we are constructing net ionic equations, we have to keep few points in our mind: Only salts in…

Q: Question 3 Stronger bonds will be found in the lower wavenumbers of infrared spectrum. O True O…

A: Stronger bond found in the lower wavenumber of infrared spectrum : true or false.

Q: MW (mg/mmol) Density (mg/uL) Amount used vanillin 152.15 XXXXX 400.0 mg acetic anhydride 102.09 1.08…

A: Number of millimoles=Amount/MW Amount of acetic anhydride=500 mg (since, 1ul=1mg)  MW of acetic…

Q: Combined Gas Law 13)a) A sample of neon gas occupies a volume of 1.00L at 27.00C and 0.660 atm. What…

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Q: Arrange the following sets of organic compounds according to increasing solubility in water I.…

A: If the aliphatic carbon chain length of alcohol is longer then the solubility in water like polar…

Q: Question 31 Use the following chromatogram of standard amino acids: 24 11 16 19 21 3 12 15 23 68 9…

A: A multiple choice question based on analytical separations that is to be accomplished.

Q: Calculate the pH of a buffer solution consists of 0.10 M acetic acid and 0.15 M sodium acetate.…

A: Given,  Molarity of CH3COOH = 0.10 M  Molarity of CH3COONa = 0.15 M  Molarity of HCl added = 0.02M…

Q: The flame-ionization detector is used in gas chromatography because the eluates cannot be detected…

A: Detector is the instrument that can detect the eluate species. In gas chromatography analyte…

Q: What is the %composition of the Vitamin A peak in the sample? 78.43% 77.73% 7.867% 72.74%

A: To calculate % composition of vitamin A in the sample.

Q: Mass Spectrometry, what high energy particle is responsible is used to bombard molecule so that it…

A: We have to predict the energy particle.

Q: Which atom and/or ion is (are) isoelectronic with Br+: Se2+, Se, As–, Kr, Ga3+, Cl–? What Do you…

A:

Q: The index of Hydrogen deficiency indicates the degree of unsatuiation of the molecule which help in…

A: Degree of unsaturation for hydrocarbons is calculated using formula :  U = (  Hydrogen in alkane -…

Q: Talble li Voltai Calle Metale terted Metal at Metalat Eseli () Edel V) Anoho Cathode Cell 1.Zn°IZn…

A:

Q: What is the concentration of a standardized HCl solution that required 50.78 mL of HCl to titrate…

A: we need to find the concentration of HCl needed for the titration

Q: The decomposition of NO2 is a second order reaction and the rate constant is 0.755 L/mol-s. In an…

A: The decomposition of NO2 follows second order reaction. Rate constant = 0.755 L /mol.s  Initial…

Q: Using phenol, it requires one FC alkylation reaction to synthesize ortho-cresol. True or False

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Q: What is the mechanism for reaction 2? 1b. What is the mechanism for reaction 3?   a Electrophilic…

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Q: Which of the following spot is the most soluble in water?

A: Which of the following spot is the most soluble in water?

Q: At a certain temperature, the reaction 2HF(s) = H2(g) + F2(g) has K. = 1.2 x 10-13. Does this…

A: A larger value of equilibrium constant (Kc) indicates that the reaction proceeds far towards…

Q: Draw the polymer made up of the 5 monomeric units. Monomeric unit is shown below: C-H H Н-СH-С—…

A: The objective of the question is to draw the polymer with 5 molecules of given monomer.

Q: Write the balanced reaction between AgNO3 and Bromide

A:

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.