Page |99 SUBATOMIC PARTICLES AND ISOTOPES Complete Symbol Atomic Mass Number of Number of Number of Element Number Number Protons Neutrons Electrons fluorine 19 P calcium 20 22 43 20 iron 56 iron 31 bromine 80 44 56 57 44 gold 118 20 10 Naturally occurring neon has 3 isotopes: 90.48% is neon-20 (19.999 amu), 0.27% is neon-21 (20.993 amu) and the remainder is neon-22 (21.991 amu). Calculate the average atomic mass of neon. How does your calculated number compare with that from the periodic table?

Q: 4) Show the mechan iSm for the SNI reaction, muolving a carbocetion rearrangement. HO + HI 10) For e...

A: 9.   This is an example of SN1 reaction.  The mechanism involves 1. Removal of I- and formation of c...

Q: 5. Write the balanced equations for following reactions. Identify which product is (aq) and which is...

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Q: Consider the following reaction: UO2* aq) + Pbts) + 4H*c U4+ (aq) → "(aq) + Pb2+, (aq) + 2H2O) Which...

A: A reducing agent it self undergo oxidation  A oxidizing agent it self undergo reduction Oxidation is...

Q: Draw the following compounds: C2 epimer of Talose

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Q: Label the following solutions as having a pH greater than, less than, or equal to the pKa. A solutio...

A: Given,  Based on given buffer solutions as having pH greater than, less than or equals to the pKa is...

Q: Carbon tetrachloride reacts at high temperatures with oxygen to produce two toxic gases, phosgene an...

A: The given chemical reaction is as equilibrium and the reaction is as follows: CCl4(g) + (1/2)O2(g) ⇌...

Q: You dissolve 29.22 g of NaCl in 250 mL of water. You then dilute the solution to a new volume of 1,0...

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Q: Convert the following: a. 0.367 mol of HNO3 to mmol b. 245 mmol of MgO to g

A: One mole is equal to 1000 mmol

Q: What mass of sodium glycolate (NaC2H3O3) should be added to 400.0 mL of 1.00 M glycolic acid to prod...

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Q: An aqueous solution is prepared that is initially 0.100 M CdI4-2. After the equilibrium is establish...

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Q: Calculate the pOH for the following:

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Q: Consider the following data: isotope                  atomic mass                    abundancy% 30...

A: ANS. Option B) 31.19 amu

Q: A 0.4574 g sample containing only NaCN and KCN requires 41.65 ml of 0.1056 M AGNO3 for titration. Ca...

A: Given: mass of NaCN + KCN = 0.4574 g Volume of AgNO3 = 41.65 mL  Concentration of AgNO3 = 0.1056 M L...

Q: Calculate the change in the molar entropy of solid sodium chloride at constant pressure (1.00 bar) d...

A: The solution of the question is given below:

Q: ethonalamineplasmalogen

A: In this question we have to explain the compound is ethonalamineplasmalogen, if the following tests ...

Q: 8. A sealed vessel contains 0.25 M COC12, 0.11 M CO, and 0.11 M Cl2 at 668 K, which is an equilibriu...

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Q: This is the chemical formula for talc (the main ingredient in talcum powder): Mg;(Si,Og),(OH), An an...

A: The molecule of Mg3(Si2O5)2 (OH)2 contain  3mol of Mg and 12 mol of O  

Q: Use the Kapustinskii Equation to calculate the radius of a hydride ion using the lattice energy of -...

A: The solution of the question is given below: 

Q: NMR spectra (Figures a, b, c and d) of four isomers are shown. with formula Cl0HuOr Their infrared s...

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Q: 2. When a carboxylic acid and an amine functional group are in the same compound, what group has the...

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Q: The concentration of barium ion in a solution is 0.010 M. What concentration of sulfate ion is requi...

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Q: What is the molar concentration of K+ ion in a solution that contains 55.6 ppm of K3Fe(CN)6 (329.3 g...

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Q: Using your calculated average cell voltage for the Ag-AgBr cell, and 298 K as the temperature, calcu...

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Q: How many moles of HCl are in 30.6 g HCl? Express your answer in millimoles. (atomic weights: H=1.01;...

A:   • Thus, 839 millimoles of HCl are in 30.6 g HCl in correct number of significant figures. 

Q: For the reaction shown below, 901 mg of 4-chlorophenol, 798 mg of benzyl bromide, and excess sodium ...

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Q: The AHvap of a certain compound is 34.40 kJ · mol-1 and its ASyap is 60.47 J · mol-! . K-1. What is ...

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Q: Provide the correct IUPAC name for S2Cls.

A: Write IUPAC name of S2Cl8 ?

Q: H. Вос H. Вос `N PHOH2C H- PHOH2C- -H- Вос Но H- OH H CH2OPH H -CH2OPH Ph = .N. "Вос Вос 1 2

A: Given structures are :  Determine the relationship between compounds 1 and 2 = ?  

Q: 7a. The structure below is "crack" cocaine, a substance used as a recreational drug. Cocaine acts by...

A: 7a :  Given structure is cocaine.    cocaine is acid or base and reaction with hydrochloric acid giv...

Q: of configurat 3) Discuss the diagram of the molar Gibbs free energy (or chemical potential) versus t...

A: The solution of the question is given below:

Q: 10  draw the condensed and line bond structure of the compound

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Q: thermometer A 56.2 g sample of polystyrene is put into a calorimeter (see sketch at right) that cont...

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Q: Which acid is stronger? Select the best reason that explains the difference.

A: 1). B is more acidic  Correct reason is,  III. The conjugate base is more stable because there is gr...

Q: Which of the following statement is true for atomic mass of 39 19 K ? Group of answer choices   A.) ...

A: Which of the following statement is true for atomic mass of 39 19 K ?

Q: A set of vapour pressures were measured at different temperatures for a particular substance. A plot...

A: Calculate the enthalpy of vaporization for this substance in units of kJ mol-1 ?

Q: 351 cL to mL

A: This question is related to conversion of units. Unit conversion means gram to kilogram, meter to ce...

Q: I need help solving this question please What would happen to the values you calculated for Kc in th...

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Q: The reaction 2NOCl(g) → 2NO(g) + Cl2(g) has a rate-constant, for the reaction of NOCl, of 9.3x10-6...

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Q: z-

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Q: 2. Which of the following is correct about a chemical reaction? A. A chemical reaction will result i...

A: Chemical  equilibrium is defined as the stage at which both reactant and product are present in equi...

Q: For a process, 153 J of heat was released by the system and 267 J of work was done on the system. Ca...

A: Thermodynamics is branch of chemistry in which we deal with heat absorbed and heat released in to th...

Q: 4..Analyze the HNMR spectrum below:

A: Proton nmr peaks stands for different proton environment present in the organic compound.

Q: Write an equation for the dissociation of  NaCl CaCl2  AlCl3

A: Given,  The dissociation equation s of NaCl, CaCl2 and AlCl3 are:

Q: How much water would 29.21 grams of an insoluble sample with a density of 4.35 g/ml displace

A: Density is the ratio of mass and volume.  Density is the amount of solid present per ml of solvent. ...

Q: Which of the following is the precipitant of the aluminum iron group?                   Select one: ...

A: Aluminium ion and ferric ion belong to the group III cations.

Q: The solutes below are soluble in water. Which solute(s) could you increase the solubility of in the ...

A: Pressure is directly proportional to solubility. Increasing the pressure leads to the increase in co...

Q: How many grams of ammonium sulfate can be produced if 30.0 mol of H2SO4 react with excess NH3 accord...

A: given reaction, 2NH3(aq) + H2SO4(aq) → (NH4)2SO4 Moles of H2SO4 = 30.0 moles  

Q: A Lab Data - X Standardized NaOH (M) 0.4171 Initial volume of buret (mL) 1.70 Volume of vinegar (mL)...

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Q: I. Both water and carbon dioxide are triatomic molecules with similar formulas. Explain why one of t...

A: Polar molecules: these are the molecules in which one end is slightly positive and the other end is ...

Q: Shown below is the NMR spectrum of a compound with formula C.H.,0 4.0 Spectrum in the infrared has i...

A: The molecular formula of the organic compound given is C7H12O4. The degree of unsaturation = C+1−(H/...

Atomic Structure

The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.

Shape of the D Orbital

Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.