Describe how the combination of atomic orbitals gives rise to bands in the limit of large numbers of atoms.

Q: Write the set of four quantum numbers that describes an electron in a 5p orbital.  Report your answe...

A: Given Orbital is 5p We need to write its all quantum numbers.

Q: A 20.0 mL solution of NaOH is neutralized with 37.0 mL of 0.200 M HBr. What is the concentration of ...

A: NaOH  +   HBr  ------->   NaBr  +   H2O So, number of moles of NaOH = number of moles of HBr   Sr...

Q: Co-53 decays into Fe-53 by   alpha emission   beta emission   positron emission   gamma em...

A: To determine type of decay from Co-53 to Fe-53.

Q: What is the final temperature if a 43.6 g piece of iron at 356°C is added to 147 g of water at 25°C?...

A: Interpretation- To determine the final temperature if  43.6 g piece of iron at 356°C is added to 147...

Q: Please answer both parts. Gaseous hydrogen and oxygen can be prepared in the laboratory from the dec...

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Q: When heated, cyclopropane is converted to propene. Rate constants for this reaction at 470. °C and 5...

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Q: Please draw the reaction (attached)and explain the mechanism of an SN2 reaction then identify the nu...

A: The SN2 reaction mechanism involves the nucleophilic substitution reaction of the leaving group (whi...

Q: 600.0 mL of a 0.470 M solution of LiCl is diluted to 900.0 mL. What is the new concentration of the ...

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Q: At 25°C and 1 atm pressure, the vapor pressure of water is less than that of SO3. Which of the follo...

A: Second option. The intermolecular forces are greater in water than in SO3.

Q: Draw the major organic product of the following reaction.

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Q: When J. J. Thomson discovered the electron, what physical property of the electron did he measure? I...

A: J.J. Thomson related the experiment with cathode rays and varying energies and strengths of electric...

Q: 2. Name the following compounds: (c) ÇH3 (b) CH3CH2NHCH,CH3 N-CH3 (a) CH3CHNH2 (e) CH3 CH2CH3 H H2NC...

A: Given here some compounds and we are asked to write the name for them.

Q: Calculate the standard molar enthalpy of formation of NO(g) [N2(g) + 02(g) → 2NO(g)] from the follow...

A: Given reactions are the following. N2g+2O2g→2NO2g   ∆H0298=66.4 KJ2NOg+O2g→2NO2g   ∆H0298=-114.1 KJ

Q: Into how many peaks will each proton shown in red be split?

A: Splitting of proton peak in NMR spectra is according to how many hydrogen atoms are present near or ...

Q: AgNO3(aq) + Na2SO4(aq) ® NR +     Ionic equation     Net ionic e...

A: By double displacement reaction between AgNO3 and Na2SO4 in aqueous medium, sodium nitrate (2NaNO3) ...

Q: Using the equations 2 C6H6 (1) + 15 O2 (g) → 12 CO2 (g) + 6 H2O (g)AH° = -6271 kJ/mol C (s) + O2 (g)...

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Q: If the substituents changed aromatic rings, what would be the effect on the rate of the reaction?

A: Nucleophiles are nucleus loving species and have unshared electron pairs. Aromatic nucleophilic subs...

Q: Write the balanced molecular chemical equation for the reaction in aqueous solution for ammonium sul...

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Q: Diamond is one of the many allotropes of carbon. At high temperatures, diamond can be oxidized by ox...

A: Diamond reacts with carbon to form carbon dioxide. The physical state of the diamond is solid and th...

Q: For the reaction calculate how many grams of the product form when 20.4 of SrSr completely reacts.  ...

A: 2Sr(s) + O2 -> 2SrO(s) 2 moles of Sr gives 2 moles of SrO. Molar mass of Sr: 87.6 g/mol Molar mas...

Q: Using the equations Ca (s) + ½ O2 (g) → CaO (s) AH° = -635 kJ/mol CaO (s) + H2O (1) → Ca(OH)2 (s) AH...

A: Let Ca (s) + 1/2 O2 (g) → CaO (s)  ΔHo = -635 kJ/mol this be equation 1CaO (s) + H2O (l) → Ca(OH)2 (...

Q: Arrange the four elements in decreasing order of first ionization energy.   Rank from highest to lo...

A: CONCEPT: As we move left to right, the effective nuclear charge experienced by the valence electrons...

Q: The evaporation of water is endothermic: H20(1) + 44.01 kJ H20(g) ---->

A: At a particular temperature amount of heat energy released or absorbed when a chemical reaction is t...

Q: To prepare an ether from an alkyl halide by a nucleophilic substitution reaction, what are the two t...

A: Nucleophilic substitution reaction is a series of organic reactions in which one nucleophile replace...

Q: A sample of nitrogen gas is confined to a 27.5-L container at 635 torr and 37.0°C. How many moles of...

A: Volume of gas (V) = 27.5 L Pressure of Gas (P) = 635 torr Temperature of gas (T) = 37 ℃ = (37 + 273....

Q: What information do we need to calculate the molar out of a sulfuric acid solution?

A: The number of moles of solute per litter of solution is known as molarity of the solution. It symbol...

Q: When we see light from a neon sign, we are observing radiation from excited neon atoms. If this radi...

A: Given, wavelength = 540 nm

Q: A compound decomposes by a first-order reaction. The concentration of compound decreases from 0.3490...

A: Given compound decomposes by first order reaction and concentration of compound decreses from 0.3490...

Q: An aqueous solution of fructose (MM = 180.2 g/mol) has a molality of 1.81 m and a density of 1.30 g/...

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

Q: Alkenes can be converted to alcohols by hydroboration–oxidation. Draw the structure of the alcohol(s...

A: Introduction :  Since this is hydroboration -oxidation reaction . So, it follows anti markonikov add...

Q: Need help with question a) Assign the geometry at each atom of molecule A, that has more than one bo...

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Q: What is the difference with UV single beam vs double beam and how does it affect absorbance?

A: In a single beam spectrophotometer absorbance at some certain fixed wavelength is recorded to known ...

Q: Need help on this. Pls do it quick time

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Q: The complex diamminedichloronickel(II), (Ni(NH3)2C12], is paramagnetic and does not have any isomers...

A: When a metal linked with the ligands then it is known as coordination compound.

Q: Complete the balanced molecular chemical equation for the reaction below. If no reaction occurs, wri...

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Q: Given the following information: Heat of sublimation of Na(s) = 108 kJ/mol Bond energy of HCl = 427 ...

A: The reaction considered is, 2 Na (s) + 2HCl (g)→2 NaCl (s) + H2 (g)

Q: To what volume will a sample of gas expand if it is heated from 50.0∘C and 2.33 L to 500.0°C?

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Q: Which species in each of the following pairs has the greater polarizability?(a)CaCa2+ (b)CH3CH2CH3CH...

A: When two oppositely charged ions approach each other closely, the cation would attract the electrons...

Q: How many moles of iron atoms do you have if you have 8.80 × 10²³ atoms of iron. (The mass of one mol...

A: 1 mole of a substance contains 6.022×1023 molecules.  

Q: Identify the subshell in which electrons with the following quantum numbers are found. Do not forget...

A: Given, Quantum numbers n= 2 , l= 1 n is principal quantum number describes the electron shell, or en...

Q: I need help figuring out the number of electrons in a cyclic conjugated system and determining if th...

A: Lone pair parallel to the pi-orbitals is counted as two electrons. Aromatic: cyclic, planar with del...

Q: A 4.4-g sample of Colorado oil shale is burned in a bomb calorimeter, which causes the temperature o...

A: The formula of amount of heat absorbed: q = mc∆T Where,  q = Heat energy m = mass of substance c = S...

Q: Chemistry Question

A: Gas obeys the below law PV1.5 = C Here C is a constant

Q: Pressurized carbon dioxide inflators can be used to inflate a bicycle tire in the event of a flat. T...

A: Given that amount of CO2 is 16.0 g Number of moles = amount in g/ molar maass moles CO2 is 16.0 g / ...