How many moles of an ideal gas are in 3.5 liters at 1 atm and 400 K? Choose the closest answer

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 273.0 g sample…

A:

Q: What does it mean in the first compound notation?

A: We can explain it as following..

Q: Which of the following does not represent 2-methylbutane? H₂C-CH₂ CH3 CH₂ CH₂ CH₂ CH (CH₂)₂ 2 C B D

A: Given,

Q: Which of the following is a strong electrolyte in a solution? KOH CH3COOH O H₂O O CH3CH2OH

A: Strong electrolyte: Strong electrolytes are the compounds that completely dissociate into its ion…

Q: Listen A dilute solution of caffeine was analyzed by UV-Visible spectroscopy and found to have a…

A: We can calculate the absorbance factor by two method which are.,  Method 1 :-  The relation between…

Q: Explain Markownikoff's addition and AntiMarkonikoff's addition with example.

A: Organic chemistry is branch of chemistry in which we deal with organic reactions and their…

Q: When 21.0 mL pentane (C5H12, d= 0.678 g/mL, M= 72 g/mol) reacts with 26.0 grams oxygen (02, M= 32…

A: since you have posted multiple questions, we will answer the first one for you. Kindly post the…

Q: b) 2 dd

A: The most stable conformations of all these trans-1,2-disubstituted cyclohexanes are discussed below…

Q: Chemistry In the absence of any protecting groups, the combination of alanine (Ala) with glycine…

A: In the absence of any protecting groups, the combination of alanine (Ala) with glycine (Gly) gives…

Q: What type of cell is this/ what is the name of this cell? What reaction, oxidation or reduction,…

A: The process of applying a metal coating to another metal object via an electro-deposition method is…

Q: Consider the following carbohydrate, D-Allose: H H H- H H- -OH Select one: O a. -OH -OH -OH CH₂OH…

A: Given molecule is carbohydrate as it contain carbon, hydrogen and oxygen atoms.

Q: Which compounds contain stereocentres? I. III. Select one: II, IV a. O b. I, II О с. I, III O d.…

A: Stereocenter, a Carbon center having 4 different groups is Stereocenter.

Q: The reaction between an acid and salt is: Oxidation Precipitation Neutralization Hydrolysis

A: Acid is a substance which can donate Hydronium ion or proton in an aqueous solution . Substance…

Q: So all three answers is Flask A? I thought at least one of them would be flask B??

A: The number of molecules or atoms present in the one mole of the substance is equal to the Avogadro…

Q: One litre of aqueous sample containing the organic pollutant, polychlorinated biphenyl (PCB), was…

A: Distribution ratio /partition coefficient is the ratio of concentration of solute in organic layer…

Q: Why does the wavelength of k absorption edge differ from the wavelengths of k alpha and k beta…

A: Please find the attachment.

Q: Multiple response question, 15 % Penalty for each incorrect responses. DO NOT GUESS, it may reduce…

A: Concept based on proton NMR spectrum.

Q: Lead-211 is a radioactive isotope with a half life of 36.1 minutes.  How long will it take for only…

A: Chemical kinetics is branch of chemistry that deals with rates of chemical reactions.

Q: Br CH₂ 2 H₂C H H 3 3 X = X 3 2 2 OH НО H₂C CH₂ H H configuration for C2: configuration for C3: b) .…

A:

Q: a) A solution contains 9.54×10-3 M lead acetate and 1.38×10-2 M calcium nitrate. Solid potassium…

A: When two salts have same  concentration  of anion/cation ,than the salt with lesser value of…

Q: 4. You are given two beakers, one containing 0.5 gm of HC1 (mat-1) and another containing 0.5 M 250…

A: HCl is a strong acid that is completely dissociated in water to give 1 H+(aq). Hence [HCl] =…

Q: 3. Indicate which arrow-pushing schemes below show proper use of curved arrows and which do not.…

A: Concepts of the organic reaction mechanism.

Q: dentify compounds a 2 butanone a 2 propanone a 1 chloro propane a ethyl butanoate a…

A: Given  2 butanone  2 propanone  1 chloro propane  ethyl butanoate  1-chlorobutane  2 butanone

Q: At room temperature, what is the pH of a solution containing 0.012 M ammonia

A: As there are three different questions asked which are not interlinked , so according to our…

Q: Based on your observations, compare the stability of organic and inorganic compounds towards heat.

A: Please find the attachment.

Q: For a particular cell based on the reaction: 3 AgCl(s) + Al(s) → 3 Ag(s) + Al³+ (aq) + 3 Cl(aq) E =…

A:

Q: 1. NMR Spectroscopy. A. Label the equivalent sets of hydrogens in the molecules below and state…

A: In the given question we have to label the 1HNMR and 13CNMR signal for the given molecule.

Q: scientist is asked to prepare 10 mL of a buffer by mixing equal volumes of 0.01M Tris-HCl buffer set…

A:

Q: Is the Lowry-Bronsted base an:  1. proton donor  2. proton acceptor 3. electron pair donor 4.…

A:

Q: 1. Put a star (*) next to each chiral carbon and label it as R or S. a) b) c) d) e) Br H H Br orange…

A: Chiral Carbon (Asymmetric carbon centre): An sp3 carbon atom is attached to four different…

Q: A galvanic cell needs to be set up so that the reduction of Sn4+ to Sn2+ takes place at the cathode.…

A: A galvanic cell needs to be set up so that the reduction of Sn4+ to Sn2+ takes place at the cathode.…

Q: Crud Chemicals is producing a casting resin that can be made using either (i) AA and BB monomers or…

A: In both polymer and gel there is cross linking .But in polymer the crossling bonds are either…

Q: Describe the water's role in the following reaction: (attached is a picture of the reaction) a.…

A:

Q: what types of compounds are generally used as fuels? why?

A: Fuels are organic compounds which generally burns and produce carbon dioxide,water and heat .h

Q: Assign R/S for carbon 15. Attachments но. A. R B. S ОН ОН 15 Н |||** Н О ОН

A: The configuration of the carbon-15 will be assigned using the Cahn-Ingold-Prelog rule.

Q: Draw structures for the carbonyl electrophile and enolate nucleophile that react to give the enone…

A: A carbonyl electrophile and an enolate (formed after the deprotonation of an aldehyde/ketone)…

Q: 3,4-dimethoxylbenzaldehyde reacts with 1-indanone to form what product in an Aldol-condensation…

A: In aldol reaction atleast one reactant must have alpha hydrogen..

Q: N At a certain temperature, the reaction Coa) Co)+C) has K 4.6 x 102. If a reaction mixture at…

A: Given: COCl2(g) <-----> CO(g) + Cl2(g) Kc = 4.6 x 10-2 Equilibrium Concentration of: [ COCl2]…

Q: Draw mechanism for the reactions below and ensure that you show all bonds, lone pairs, and…

A: Lone pairs are the nonbonding electrons present on an atom in its bonded state.

Q: Zn(OH)2 has a Ksp of 4.5 x 10-17. If you have a solution of Zn(OH)2 that has a hydroxide ion…

A: Given :  Ksp = 4.5 x 10-17  [OH-] = 4.6 x 10-6 mol/L

Q: Question 28 Provide a detailed, stepwise mechanism for the reaction of butanoyl chloride with benzyl…

A:

Q: Which of the following statements regarding the Law of Thermodynamics is false? The entropy of the…

A: Law of thermodynamics which is false  are .

Q: What is the correct stereochemical designation for the following molecule according to IUPAC? M…

A: For alkene, if different types of groups are present, stereochemistry is decided by priority rules…

Q: Determine the densities of the xylene isomers (o, p, and m) at 40°C.

A:

Q: Question 37 What is the product formed when aniline reacts with Br₂ in the presence of FeBr3: NH₂…

A:

Q: The pH of the buffer formed by a solution that is 0.0150 M HCIO (Ka-3.0x108) and 0.0250 M NACIO is O…

A: Here we are required to find the pH of the buffer solution.

Q: Draw the fragmented molecular ion for the compound shown above for peaks 127,144 and 159. Thank you.

A:

Q: Question 13 Properties of bases, EXCEPT: Ohydroxide ions O electron pair donor O tastes bitter…

A: What are base .

Q: On another planet, the isotopes of titanium have the given natural abundances. Abundance Mass (u)…

A: Average atomic mass =( m1a1 + m2a2 + m3a3)/100 m = mass of isotopes  a= abundance

Q: Question 6 If the hydroxide ion concentration of a 0.109 M NH, solution is 0.0014 M. what is the…

A: Recall the given reaction,                    NH3 aq  +  H2O l  ↔  NH4+ aq  +  OH- aqThe hydroxide…

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.