At a temperature of 320 K, a sample of He gas has a pressure of 1.05 atm and a volume of 30.2 mL. How many mols of He gas are in this sample? You can report your answer as a decimal or in scientific notation. Click Save and Submit to save and submit. Click Save All Answers to save all answers.

Q: Draw the skeletal ("line") structure of ethylmethylpropylamine. Click and drag to start drawing a…

A:

Q: What is the density of CO2 at 655 mmHg and 55oC?

A: The objective of the question is to calculate the density of CO2 at a given pressure and…

Q: What is the "AXE" description of the ozone (03) molecule? AXEO X 5

A: AXE method: A = central atom X = number of Sigma bond between them central atom and surrounding…

Q: What will be the main product of the following reaction: Write the mechanism of the reaction HO…

A: Dehydration of alcohol is acid catalyzed reaction which forms the alkenes. The acid used in this…

Q: Balance the following nuclear fusion reaction. He+ H He +. Ofe Ofn Ole Op

A: In the nuclear fusion reaction, two light nuclei merge to form a single heavier nucleus.

Q: [NH,*]= 0.10 M [NH3] = 1.00 M OH3BO3/H₂BO3 O H₂CO3/HCO3 HOCI / OCI- NHÀ 1 NH3 O HCO₂H/HCO₂ O HCO3 /…

A: Answer:Buffer solution is a type of solution that resists the change in its pH on adding small…

Q: Q7. What is the source of energy for stars and the sun. Explain the proton-proton fusion chain.

A: The primary source of energy for stars, including our Sun, is nuclear fusion that occurs in their…

Q: O Product(s): 1) PhMgBr 2) H3O+

A: The reaction of cyclohexanol with phenylmagnesium bromide (PhMgBr) followed by treatment with H3O+…

Q: 64. Write balanced complete ionic and net ionic equations for each acid- base reaction. a. HI(aq) +…

A: A net ionic equation is an equation that shows the chemical species that are involved in a final…

Q: If it takes 6.030 kJ to melt 1.000 mol of ice at 0.000 °C and you have 425.0 g of ice, what is the…

A: The molar entropy change for ice,Here,  = the molar heat of fusion or meltingT = temperature at…

Q: Q1. Describe why 235U is preferred over 238U (in terms of nuclear-cross section and activation…

A: U -235 is a fissile nuclide whereas U-238 is a Fissionable nuclide. Fissionable nuclides are those…

Q: Provide the major organic product of the reaction below. CH3CH₂OH H* (cat.)

A: The process of exchanging an alkyl group (R) of an ester with the alkyl group (R') of alcohol is…

Q: Answer the questions below about the highlighted atom in this Lewis structure: H H I + H-C-C=C-H ||…

A:

Q: Draw all possible resonance For each molecule If any appear significantly less stable, circle it,

A: Definition - It is a way of describing delocalized electrons within certain molecules or polyatomic…

Q: HO OH Pyridinium ChloroChromate (PCC) bl

A: PCC is an oxidant in chemistry. It oxidizes primary alcohol to aldehyde and secondary alcohol to…

Q: Answer the questions in the table below about the shape of the sulfur hexabromide (SBr.) molecule.…

A: A phenomenon of mixing or blending of two or more atomic orbitals of approximately equal energy of…

Q: What is the major product of the following reaction? H полотен H H.C CH₂ CH ₂ 1. BH /THF 2. но н.о.…

A: Given,The reaction:

Q: Suppose 0.994 g of sodium chloride is dissolved in 100. ml. of a 65.0 m M aqueous solution of silver…

A: Weight of sodium chloride = 0.994 gMolar mass of sodium chloride = 58.5 g/molMolarity of aq. AgNO3…

Q: NBS heat -Br

A: NBS adds Bromine to an alkene at allylic position.

Q: 6) The Diels-Alder reaction of anthracene (which is achiral) and maleic anhydride (also achiral)…

A: Anthracene is achiral and fumaric acid is also achiral because it have center of symmetry.

Q: Give the IUPAC name for each compound. a. C. e. HO CI CI O OH OH CHO b. d. f. O CO₂H NO₂

A: Given,The molecules:

Q: 42) a) Draw three-dimensional structure of PCl3.  b) Draw three-dimensional structure of PCl5. c)…

A: The structures of molecules are determined by using the VSEPR theory. It is based on the concept…

Q: 0.0710 moles of CH3CH2OH (ethanol) are dissolved in water to make a solution with a total volume of…

A:

Q: A 2L bottle contains a gaseous mixture of Helium and Oxygen (O₂). The temperature and total pressure…

A: V = 2 LT = 30oC=30+273=303KPtotal = 1atmd(O2) = 0.547 g/LR = 0.08206 Latm/molK

Q: Indicate the strongest intermolecular force acting in.pure samples of the following compounds: Lil…

A: Intermolecular forces (IMFs) are the forces that exist between molecules. These forces are much…

Q: Which one of the following best represents the predicted approximate chemical shift and coupling for…

A: Proton-NMR spectroscopy is mainly used for the identification of complete structure of the organic…

Q: PROBLEM SE 48. Barium crystallizes in a bcc lattice with barium atoms only at the lattice points. If…

A: In BCC lattice atoms are at center of cube and at corners of cube. So, the number of barium atoms in…

Q: What is the product of the following reaction? OH CrO3 aqueous H₂SO4

A: Secondary can be oxidized to ketones by using chromic acid as the oxidizing agent. Chromic acid,…

Q: м ОСНЗ Маосиз осно 3

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

Q: Complete the curved arrow mechanism of the following double elimination reaction when…

A:

Q: The reaction between hydrogen and oxygen to yield water vapor has AH =-484kJ: 2H2(g) + O2(g)…

A: Reaction equation is2H2(g) + O2(g) -----> 2H2O(g)ΔH°= - 484kJRequired: ΔE°= ? kJRelationship…

Q: 3. Predict the major product(s) for the following reactions. O CI 1.2 CH₂CH₂MgBr ether 2. H₂O NaBH4…

A: Given are a few organic compounds and reagents.To find the major products of the reactions.

Q: The formula of acetic acid is CH3COOH (alternatively written as C₂H4O₂). What is the molar mass of…

A:

Q: 9. Design a synthesis for the following compound. You may use any reagents you would like, but all…

A: Given is organic synthesis reaction. We need to prepare given product from given starting compound.

Q: Arrange the triacylglycerols of glycerol, palmitic acid, and oleic acid in order of decreasing…

A: In the given question we have to arrange the melting points of the given compounds in the decreasing…

Q: Select the correct starting material for the reaction shown below: 1) MgBr 2) H3O+ work up OH to

A: Grignard reagents, formed by reacting alkyl or aryl halides with magnesium, react with ketones to…

Q: draw skeletal structures of phenylalline, tyrosine, tryptophan.

A:

Q: 2. The equilibrium fraction of lattice sites that are vacant in silver (Ag) at 700°C is 2 x 10-6.…

A: The objective of the question is to calculate the number of vacancies.

Q: Choose the weak base from the compounds below. O CH3COOCH3 OCH3SCH3 O CH3CH21 O(CH3)2NH CH3CH3

A: An acid is one who loses a proton and base who absorbs a proton. In the given example all compounds…

Q: A B OH e the most prominent frequency. Do not include units in your answer. Use only the frequencies…

A: IR, infrared spectroscopy is an analytical method to determine the structure of the compound. It is…

Q: Since mercury is a safety hazard, we have decided to use water instead in our barometer. What would…

A: The pressure will be same whether the mercury is used or water is used,  there is only a difference…

Q: At what temperatures

A:

Q: Suppose that a molecular orbital has the (unnormalized) form 0.727A + 0.144B. Find a linear…

A: (unnormalized) form of molecular orbitals is. 0.727A + 0.144Borthogonal to this combination is…

Q: A 1.89−g peanut is burned in a bomb calorimeter containing 1,468 g of water. The temperature of the…

A:

Q: Calculate the standard enthalpy change for the following reaction: CH4(g) + 2 O₂(g) → CO₂(g) + 2…

A:

Q: Code A NMR Data Proton NMR 2H AL 3H t,d 1H pentet 6 5 PPM 1H d 4H d Carbon NMR 4H t 2 peaks, same…

A: Nuclear magnetic resonance (NMR) spectroscopy is the study of molecules by recording the interaction…

Q: The structure of cis-3,5-dimethylpiperidine is shown below, without stereochemistry.   In the most…

A: Axial positions: These are the positions above and below the plane of the ring. Axial substituents…

Q: Propose a reasonable mechanism for the following  reaction

A: In the given reaction, the carbonyl carbon of the reactant is reduced to a CH2 group. The reaction…

Q: 728) How many moles of electrons are involved in an electrolytic process if 3.07 amps are applied to…

A: The current is .The time is .To find the number of moles of electrons (n).

Q: Cl НО

A: Given is organic reaction.The given reactant is alkyl chloride.The given reagent is ethanol.This is…

Kinetic-Theory of Gases

Kinetic theory of gases is the model or method which was developed in the 19th century by Maxwell and Boltzmann. This is possible as the interatomic force which is of short-range forces that are important for solids and liquids can be neglected for gases. This theory or gas law gives a molecular interpretation of the pressure and temperature of a gas and is consistent with gas laws and Avogadro’s hypothesis. This theory is very helpful to correctly explain the specific heat capacities of many gases, kinetic energy and it also explains the transport qualities such as viscosity, thermal conductivity, and diffusion with molecular parameters. As stated in the kinetic-molecular theory, the temperature of a substance or gas particle is related to the average kinetic energy of the particles of that substance. When a substance is heated, some of the absorbed energy is stored within the particles, while some of the energy increases the motion of the particles, called average kinetic energy.