Which element has the following orbital 1s | 2s 2p 3s a H田 RNE C

Q: Imagine that you are in chemistry lab and need to make 1.00 L of a solution with a pH of 2.60. You ...

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Q: 1. For each of the following reactions, identify the category of reaction, balance lne reaction, and...

A: The correct answer is given below

Q: Consider this molecular-level representation of a mixture of gases. If the partial pressure of the d...

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Q: name & geometries. F3CI Molecule or lon (circle) # of bonding regions= # of non-bonding pairs= VSEPR...

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Q: Solid potassium bromide is slowly added to 125 mL of a 0.304 M silver acetate solution until the con...

A: Solution                         Given that Bromide = 0.0377M Volume = 125ml Silver acetate = 0.30...

Q: (a) Draw the disulfide formed when CH,CH,CH,SH is oxidized. (b) Draw the product formed when the fol...

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Q: Calculate the average atomic mass of the element lodine (1) using the following data % abundance 80%...

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Q: The following chromatogram is obtained for a mixture of substances X and Y. Calculate the separation...

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Q: The unit cell of the tetragonal (a = b not equal to c) phase of a Ni and Nb alloy is given below. a....

A: Given a tetragonal unit cell where a=b but not equal to c . Let's discuss the mirror planes and inve...

Q: A balloon containing 2.99 g of water at 0.909 atm and 400.45 K has volume of 5743 mL. Based on this ...

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Q: 98 grams of sodium acetate (Mol. wt =82 g/mol) were placed in 764 mL of water such that the final vo...

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Q: The heat of combustion, AH°C, of acetone, C3H0, is -1790.4 kJ/mol. How many kilojoules of heat are e...

A: We have to calculate the heat of combustion.  

Q: 50. What is the name of this compound 3HC-CH2-CH2-CH2-CH2-CH2- NH2? * 1-hexanamide 1-hexanamine hexa...

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Q: 2. The equilibrium constant K, for the formation of nitrosyl chloride from nitric oxide and molecula...

A: For the reaction., 2NO + Cl2  ----> 2NOCl Kc for the reaction = 1 × 105  Mole of NO = 6.7 × 10-2 ...

Q: P4(s) + 6 Cl2(g) –→ 4PC13(g). A sample of PCl3 of mass 276.6 g was collected from the reaction of 74...

A: given :-  P4(s) + 6Cl2(g) →4PCl3(g)  mass of P4 = 74.69 g  actual yield of PCl3 = 276.6 g  To calcul...

Q: A buffer solution contains 0.228 M ammonium chloride and 0.315 M ammonia. If 0.0274 moles of nitric ...

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Q: Write the balanced net ionic equation and name the precipate formed in each reaction  1. CU(NO3)2 (...

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Q: Which of the following scenes depict the process of an increase in the enthalpy?     Stirring a coff...

A: a) When stirring a coffee mixture leads to increase in entropy due to increase in randomness in the ...

Q: One way in which the useful metal copper is produced is by dissolving the mineral azurite, which con...

A: Given, the balanced equation: Fe(s) + CuSO4(aq) → Cu(s) + FeSO4(aq) The volume of copper(II) sulfate...

Q: An environmental chemist analyzed the effluent (the released waste material) from an industrial proc...

A:   Volume of NaOH = 10.59 mL Concentration of NaOH = 0.1546 M Volume of effluent = 3.52 mL   Since be...

Q: 1. Determine the molar mass of (a) potassium hexachloroiridate(IV), K2lrCls and (b) trifluorosilane,...

A: Determine the molar mass of the given complex--

Q: meo EtO.

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Q: Consider the following rate data for the reaction below 2A + 3B - Products Experiment [A] [B] Initia...

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Q: When 0.100 g of an unkown polyhydroxy organic substance was added to 50.0mL of phenol, a decrease of...

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Q: When work is done on a system to bring it into an ordered state which of the following is true? O Th...

A:                                  Answer  when work is done on the system If work is done on the syst...

Q: Write a balanced chemical equation for each of the following: a. precipitation of nickel ion b. iden...

A: The objective of the question is to write the chemical equations of the following given questions.

Q: Balance the following equation: Al+O2=Al2O3 and determine how many moles of aluminum oxide can be pr...

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Q: When limestone (which is principally CACO3) is heated, carbon dioxide and quick- lime (CaO) are prod...

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Q: Which has the largest pH?      Select one: a. 0.01 M KOH b. 0.1 M HNO3   c. 0.001 M NaOH. d. 0.01 M ...

A: All the given elecrolytes are strong acids and bases which undergo complete dissociation in aqueous ...

Q: A 1 liter solution contains 0.448 M nitrous acid and 0.336 M potassium nitrite.

A:   HNO2 + KNO2 mixture will acts as acidic buffer Added strong acid HCl, it reacts with salt KNO2  an...

Q: At a certain temperature and pressure, 1 L of CO, gas weighs 1.35 g. What is the mass of 1 L of CH, ...

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Q: E B Where would the bicyclist have the highest potential energy? (choose one) v Where would the bicy...

A: High elevation causes high potential energy.  Kinetic energy is due to motion so it's just opposite ...

Q: Which of the following structures represent 3-ethylhexane? Group of answer choices   CH3CH2CH(CH2CH3...

A: IUPAC is an acronym for International Union of Pure and Applied Chemistry, which is a globally recog...

Q: 2. The picture in the introduction shows that the mass of a crucible and lid was determined to be 22...

A: Given,  The mass of Crucible and lid = 22.1504 g.  The mass of crucible and lid  and hydrate = 24.29...

Q: Convert each three-dimensional representation into a Fischer projection. P CH CH CHO OCH3 a. H C-OH ...

A: Fischer representation is a type of 2 dimensional representation of any 3 dimensional molecule. It w...

Q: The kinetic molecular model relates accordingly to the intermolecular behavior of matter. Which of t...

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Q: Which of the following scenes depict the process of an increase in the enthalpy?     Stirring a coff...

A: Answer: Enthalpy of the system decreases when process is exothermic and it loses heat and enthalpy o...

Q: What is the molecular weight of gas X if it effuses 1.25 times as rapidly as N2? (5 points) 4.

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Q: gas, oxygen (0,) gas and water vapor, releasing a great deal of energy. Calculate the moles of ammon...

A: For dealing such types of problems we have to write the proper balanced reaction. Now compare the st...

Q: Many metals react with halogens to give metal halides. For example, iron reacts with chlorine to giv...

A: Consider the given information is as follows; Mass of iron (Fe) = 10.0 g Mass of Cl2 required for th...

Q: Determine the molality of a 16-g urea dissolved in 39 grams of water. The molar mass of urea is 60.0...

A: The objective of the question is fond the molality of the urea from the given data.

Q: 2) 1-bromo-4,4-dimethyl-2-hexyne Expanded Structure Condensed Structure Line/Skeleton Structure

A: Draw the expanded, condensed and line/skeleton structure of the following alkenes and alkynes. 

Q: 10a.Bulletproof vests are made of the polymer called Kevlar. It is produced by the polymerization of...

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Q: Ammonium phosphate ((NH4),PO4) is an important ingredient in many fertilizers. It can be made by rea...

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Q: For a theoretical yield of 2.54 g and percent yield of 82.8583%, calculate the actual yield for a ch...

A: Given data, Theoretical yield = 2.54 g  % yield = 82.8583%  Then, Actual yield = ?

Q: Y 10 11 12 13 14 Tim e (min) O A. 1234 O B. 2116 O C. 1102 O D. 1936 O E. 1488 Instrument response i...

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Q: Consider these compounds: A. BaSO3 В. Cr(ОH)з С. РЬСrO4 D. A93PO4 Complete the following statements ...

A: Sulfite are soluble . All hydroxide,phosphate chromates Are insoluble in water.  

Q: Design a buffer that has a pH of 3.65 using one of the weak acid/conjugate base systems shown below....

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Q: Suppose a 500. mL flask is filled with 0.20 mol of NO and 0.10 mol of NO,. The following reaction be...

A: We have to calculate the equilibrium concentration of NO3.  

Q: Chemical Formula Prelab Questions Name: Ashlyn Neurton Section: O0 Prepare For It! Pre-Lab Questions...

A: 4.) Mole ration is calculated by dividing the least value of moles by each value.  5.) We use mole r...

Quantum Chemistry

Quantum chemistry deals with the properties of chemical systems and their reactions. The branch of chemistry which is more concerned with quantum chemistry is physical chemistry. It is a more sophisticated field of theoretical physics which is concerned towards the application of physical concepts towards various chemical aspects such as, formation of atoms, chemical structure descriptions, chemical bond strength, hybridization, conjugation etc. Quantum chemistry mainly studies the various states i.e., ground state, excited state, transition states of the individual atoms or molecules taking place during any chemical reaction. The laws of motion explained by various scientists, which are termed as “classical mechanics” were not acceptable in terms of electrons, protons, atoms, light etc. Thus, a new theory named “quantum mechanics” emerged to understand the basic framework of various atomic and subatomic particles.