A glass container was initially charged with 2.30 moles of a gas sample at 5.00 atm and 21.7 \deg C. Some of the gas was released as the temperature was increased to 33.1 deg C, so the final pressure in the container was reduced to 1.50 atm. How many moles of the gas sample are present at the end?

Q: Write the balanced chemical equation for the reaction between benzoic acid and sodium hydroxide in…

A: Answer:When acid and base solutions are mixed then highly irreversible neutralization reaction takes…

Q: CH3 CH₂-CH₂-NH3 CI+ NaOH- Draw the molecules on the canvas by choosing buttons from the Tools (for…

A: Given is an alkyl ammonium salt reacting with a strong alkali NaOH.To find the product of this…

Q: what is the pH of a Trimethylamine solution at 0.63 M.

A:

Q: How long will it take for the concentration of A to decrease from 0.850 M to 0.225 for the reaction…

A: Dear students,The answer to your question is given below. For more information do…

Q: Consider the following two resonance structures. Draw curved arrows to explain the conversion of the…

A: Answer:When a chemical specie can exist in more than one structure without shifting of any atom then…

Q: CH3. NO₂

A: The IUPAC name of a compound is internationally accepted standard nomenclature of the compound.This…

Q: ethyl butanoate 1.) NaOH, H₂O 2.) H₂SO4

A: Saponification reaction can be considered as a hydrolysis reaction.Here hydrolysis of ethyl…

Q: Ammonia has been studied as an alternative "clean" fuel for internal combustion engines, since its…

A: The equilibrium constant is used to relate the concentration or the pressure of reactants and…

Q: Predict the major products of the following organic reaction: + ● CN A ? Some important Notes: Draw…

A: This is an example of [4+2]cycloaddition, also called Diels-Alder reaction reaction.

Q: 7. what could be the MAJOR product? RCOR+HCN→?+HCI+H₂O⇒product A) a-hydroxy acid B) a,ß-unsaturated…

A: The objective of the question is to identify the major product of the given reaction. The reaction…

Q: 9) What accurately describes the following compound? A) It is a meso- compound B) It is an aldehyde…

A: Chiral compound: A compound which is non-superimposible on its mirror image is called chiral…

Q: 5.00 g of solid NaCl is added to 100.0 mL of water. The temperature dropped from 21.0°C to 16.7°C.…

A: Answer:The Law of conservation of energy states that energy cannot be created nor destroyed, it can…

Q: 10. 20. 30. 0.00482 M 0.00232M 0.00112M 0.5.38 x 104 M swer the following questions. for this…

A: The question is based on the concept of chemical kinetics.we need to identify rate law and calculate…

Q: 4) What volume will a 4.67 g object occupy if its density = 7.86 g/cm³? 5) The density of mercury…

A:

Q: Curved arrows are used to illustrate the flow of electrons. Using the provided starting and product…

A: Organic reactions can be defined as the reactions in which organic reactants react with each other…

Q: Calculating an equilibrium constant from a partial equilibrium composition Ammonia will decompose…

A: 2NH3 ⇌ N2 + 3H2Volume of the tank = 25.0 LInitially,moles of NH3 = 2.4 molAt equilibrium,moles of H2…

Q: Consider the titration of 100.0 mL of 0.250 M aniline, C6H5NH2, (Kb = 3.8 × 10–10) with 0.500 M HCl…

A: Given,Molarity of aniline ( C6H5NH2 ) = 0.250 Mvolume of aniline ( C6H5NH2 ) = 100.0 mLMolarity of…

Q: At a particular temperature, Kp = 0.160 for the reaction N204(g) = 2NO2(g) A flask containing only…

A: Given :

Q: On a journey deep into the Klingon empire, the Starship Enterprise runs out of dilithium crystals,…

A:

Q: Problem 1 1. NaH, 2. LiAlH4 O NaH/ O 1. LIAIH 2. TsCl, pyridine 3. NaH/ EtooC COC

A: The Major product formed in the given reaction is-

Q: Typical Fisher esterifications involve reaction of an alcohol and a carboxylic acid to make the…

A: The objective is to determine the impact of Fisher's esterification of an alcohol with anhydride.…

Q: Is the above reaction endergonic or exergonic? Which letter is AG of the reaction? Which letter is…

A: A reaction profile diagram is a theoretical representation of a chemical reaction as an energetic…

Q: What is the produc ОН

A: The group already present on the benzene ring gives the direction for the incoming groups. This…

Q: At a certain temperature the rate of this reaction is first order in N₂O5 with a rate constant of…

A:

Q: The pH of a 1.00 M solution of formic acid is 1.879 at 25 °C. What is the pKa value of formic acid?

A: Concentration of acid = 1.00MpH = 1.879T = 25°CWe have to calculate pKa.

Q: Predict some possible valence tautomers for 1,3,5-cycloheptatriene. ? cyclohepta-1,3,5-triene

A: Valence tautomers :- It is an another example of pericyclic reaction which involves the…

Q: Add curved arrow(s) to draw step 2 of the mechanism. Modify the given drawing of the product as…

A:

Q: Find the concentration of ammonia in the solution.

A: moles of formic acid = 0.13 molesmoles of ammonium chloride = 0.13 molesvolume of solution = 1 LKa…

Q: Use this graph to answer the following questions: What is the half life of the reaction? Round your…

A: The given reaction represents the exponential decay of ammonia:2NH3(g)  N2(g) + 3H2(g)

Q: You dissolve 150.0 grams of a mixture of MgCl₂ and KCI in water, add a solution of excess AgNO3, and…

A: Upon adding a suitable ionic compound into an aqueous solution, the ions in the added ionic compound…

Q: CH3 1. Hg(O₂CCF3)2, CH3OH, THF Hg(O₂CCF3) H OCH3 CH3 organomercury intermediate 2. NaBH4 H Œ H OCH3…

A: An arrow always depicts from a region of high electron density to low electron density ; that is…

Q: NaOCl (aq) + 2 Kl (aq) + 2 HCl (aq)   →  I2 (aq) + 2 KCl (aq) + NaCl (aq) + H2O (l)  How many…

A: The objective is to determine the volume of NaOCl required to completely react with iodide…

Q: What is the major product of the following reaction? NO₂ a. NO₂ CN Br CN Br2 FeBr3 NO₂ b. CN Br Br…

A: The negative mesomeric effect (also called the -M effect) refers to the withdrawal of electron…

Q: The cooling effect of alcohol on the skin is due to its evaporation. Calculate the free energy…

A: In the above reaction, there is the conversion of liquid C2H5OH to gaseous C2H5OHFree energy change…

Q: The equilibrium constant, Kp, for the following reaction is 55.6 at 698 K: H₂(g) + 1₂(g) 2HI(g)…

A: The objective of the question is to calculate the equilibrium partial pressures of all species…

Q: Which electron in these atoms is lowest (most negative) in energy? 4s in Ca, 3p in Ca, or 3d in Zn

A: Answer:Energy of electron in an atom is equal to the energy of the orbital it is present in. So, in…

Q: Suggest a strategy to convert the alcohol into the iodide below. You may need multiple steps. 6)…

A: The question is based on the concept of organic synthesis.We need to synthesize the product using…

Q: Draw the cross-coupling product that would be obtained from heating the following reactants in the…

A: The chemical transformation known as the "Heck Reaction" involves the palladium-catalyzed coupling…

Q: What alkyl halide forms the following alkene as the only product in an elimination reaction? Click…

A:

Q: Select the most appropriate combination the following reaction. reagent to successfully execute

A: Alkenes are oxidized into various products in the presence of the oxidizing agent, potassium per…

Q: Find an Analogy for Equilibrium Constant, Effect of Catalyst on Equilibrium OR Le Chatelier’s…

A: Equilibrium constant is ratio of forward reaction rate and reverse reaction rate.A catalyst lower…

Q: Draw beta-D-galactopyranose and beta-D-mannopyranose in their chair conformations. Label the axial…

A: The objective of the question is to find the chair conformation of beta-D-galactopyranose and…

Q: At a certain temperature this reaction follows first-order kinetics with a rate constant of 0.074 s…

A: The question is based on the concept of chemical kinetics.We need to calculate time required for…

Q: 3. On the axes below, sketch an approximate titration curve for lysine. Mark/label any relevant…

A: Amino acids contain both amine and carboxylic acid functional groups.. In alpha amino acids the…

Q: Draw the structure of the major organic product(s) of the reaction. exi 1.2 CH3MgBr, ether CI 2.…

A: Grignard reagent is generally represented as RMgX, R is an alkyl group, Mg is magnesium and X is…

Q: For the following two pairs of molecules, (1) Draw out the chair conformation for each molecule,…

A:

Q: Which is a structural isomer of 3-ethyl-3-methylhexane? O 2,7-dimethyloctane 2,8-dimethylnonane O…

A: Structural isomers have same molecular formula and they have different bond connectivity of atoms or…

Q: H3C' Ph OH 이 OH CO2CH3 H ОН 1) Ph3P, HN3 2) DEAD Ph3P CCl4 1) p-toluenesulfonyl chloride 2) PhS-Na+

A: In above three reaction, all  the reactant have alcoholic -Oh group. These reactions are actually…

Q: I.... H O ...k H NH3 NaBH3CN ZI H

A: NaBH3CN is a reducing agent used in reduction of imines and convert them to amines.It is also know…

Q: a. b. For the following two pairs of molecules, (1) Draw out the chair conformation for each…

A: Chair conformation of cyclohexane:The flexibility of cyclohexane allows for a conformation which is…

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.