A certain element forms an BCC unit cell structure with a density of 8.53 g/cm3. Calculate the atomic mass (g/mol) of the element if it has an atomic radius of 123.71 pm.

Q: The decomposition reaction given below is in the first order. 2 N2O5(g) > › 4 N20A (8) + 02 (8) The…

A:

Q: What are the enantiomers of ibuprofen? Point out the chiral centers and indicate absolute…

A:

Q: The Lewis structure reveals only single bonds in which of the following species?     CO     CCl…

A: 1.Lewis structure represents  valency of atom in the form of dots. 2. lewis structure is simple…

Q: Arsenic pentafluoride Computation of AEN: Answer: Polarity of Bond:

A: If the electronegativity difference will be greater than 2.1 (∆EN > 2.1 ) then the ionic bonds…

Q: Calculate the pH of a solution containing 0.05 mol.L-¹ HCl and 0.05 mol.L-¹ NaCl. Data: I = } Σ ciz…

A:

Q: What is the water pressure at a depth of 30 m under sea water (similar to pure water), at 25°C? We…

A:

Q: consider the following reaction with an activation energy of 12.10 kJ/mol and a rate constant of 9.0…

A:

Q: please give the structure of 3-ethyl-1-isopropylcyclohexane

A: Given -> Compound -> 3-ethyl-1-isopropylcyclohexane

Q: The partial pressure of O₂ in your lungs varies from 25 mm Hg to 40 mm Hg. What mass of O₂ can…

A: • Henry's law :- Henry's law tells us the quantity of gas that can be dissolved in a liquid. Higher…

Q: Boiling Point Elevation/Freezing Point Depression AT = m K where, for freezing point depression: AT…

A:

Q: If a sample of a gas is initially at 755 mmHg, 12.6 L, and 22.4 °C, what will be the new pressure if…

A:

Q: pentan-4-ol 1-methyl-3-ethylbutane 4-methyl-3-propylpentyne

A: The given problem is based o the nomenclature of organic compounds.

Q: Combining 0.288 mol Fe₂O3 with excess carbon produced 18.0 g Fe. Fe₂O3 + 3C2 Fe + 3 CO What is the…

A: mole = massmlar masspercent yield =actual yieldtheoretical yield × 100Limiting reactant leads to…

Q: How do you know which is the R and which is the S ibuprofen?

A: The R/S configuration for chiral carbon is found using Cahn-Inglod-Prelog (CIP) rules for R/S…

Q: 11. ) Dr. Bork loves the smell of pineapple, which comes from the organic compound ethyl butyrate.…

A: Recall the data from the question, mass of sample=2.78 g after combustion, mass of CO2=6.32 g  molar…

Q: Write the six mole-to-mole conversion factors that can be derived from each of the following…

A: While determining mole to mole conversion factor we need to compare the moles of an atom present in…

Q: Find numerical value: Report your answer in proper Sig. Figs. i) (5.6 x 104)+(7.89 x 102). Show Your…

A: Rule of significant digit-1) In non decimal number, 0 comes after non-zero not count in significant…

Q: 3. Sodium carbonate decahydrate Na CO₂ · 10H₂0 .

A:

Q: The conductivity of an intrinsic semiconductor decreases with decreasing temperature. How can this…

A: Semiconductor can be defined as material that have electrical conductivity value lying between metal…

Q: Which statement is incorrect for the Arrhenius equation? A.) As the temperature increases the…

A: Answer:- Arrhenius equation gives the relationship between activation energy, rate law constant and…

Q: Hydrochloric acid is sold as a concentrated aqueous solution. If the concentration of commercial HCl…

A:

Q: The boiling point of benzene, C6H6, is 80.100 °C at 1 atmosphere. Kb (benzene) = 2.53 °C/m In a…

A: Properties that depend on the amount of the substance added are known as colligative properties. The…

Q: What is the difference between the molecules of soaps and detergents, chemically? Explain the…

A: Soap and detergent both are used for cleansing purpose. Soap and detergent both are chemically…

Q: Predict the major product of the following reaction. O -OCH3 2) + OCH 3 OH OH OH OH 1) MeMgBr ? CHO…

A:

Q: Determine the major product in the following reaction OSiMe₂(tBu) CH3 HO HO HO HO HO CH3 OSiMe₂(tBu)…

A:

Q: Complete and balance the following redox equation. What is the coefficient of H₂S when the equation…

A:

Q: 4. Given the half-reactions below, provide the answers to the following: Eº= 0.92 V 2Hg²+ (aq) +…

A: Electrochemistry can be defined as the branch of chemistry in which we deal with the redox…

Q: 4. Calcium hydroxide, Ca(OH)2 is produced by reacting 2.5 moles of calcium chloride, CaCl2 and 3.2…

A:

Q: Part 3: For each of the following representations of butane, determine what strain energy is…

A:

Q: :0 11 :0 :0: :0 Equivalent resonance structures occur when there are identical patterns of bonding…

A:

Q: Calculate the lattice enthalpy for RbF. You will need the following information: Species AfH, kJ/mol…

A: The answer to the following question is :

Q: Which of the following is the strongest acid? 1. H₂O IA 10 IIA Be Mg Ba La Ra Ac 11. H₂S III. H₂Se…

A: The given acids are H2O     H2S         H2Se     H2Te The strongest acid among the given acids is

Q: OH A B с D mCPBA 1. Ag2O, NH OH 2. Neutralizing work-up PCC LIAIH Done

A:

Q: e domain and range of the graph. y I -5 5 -5 10 5 10 X

A:

Q: 3. Sodium carbonate, Na₂CO3 can be found in pure form and it can be used to standardize acid…

A:

Q: 2. What is the AG or the following balanced reaction, if E* = +2.431 V? Al(s) + Fe³+ (aq) → Al³+…

A:

Q: Using Freundlich Relation. If 100 ml of 0.5 M HA (MM = 60 g) mixed with 0.9 g charcool after…

A: This is done according to Freundlich absorption isotherm. x/m= K x C1/n

Q: bo what is the freezing point of the solution? (Assume that the molarity and molality are the same…

A: Please find your solution below : Colligative properties are the properties of solutions that depend…

Q: Determine: The number and placement of the carbon chirality centers, if any. If this structure can…

A: Firstly we have to know about the chiral carbons.  What are chiral carbons?  The Carbon atom…

Q: H₂SO4, H₂O, HgSO4 1) 03:2) DMS 1) R₂B-H 2) H₂O2, NaOH

A: Organic reactions are those in which organic reactant react to form Organic products. In the given…

Q: Write the reaction mechanism of phenolic reaction (with reagent FeCl3) on phytochemical!

A: When phenol reacts with Fecl3 it gives a blue violet complex. Here FeCl3, the oxidation state of Fe…

Q: a what is the average molar mass of starch? (Because not all starch molecules are identical, the…

A:

Q: 7. I used to run at a pace of 8.3 mi/hr. Convert that speed to kilometers per minute. a. How many…

A:

Q: Calculate the molecular and molar mass of hydrogen fluoride with scientific and decimal notation…

A: Molar mass of compound can be formed by adding mass of each element with its stochiometric…

Q: One brand of laundry bleach is an aqueous solution 4.55 % NaOCl by mass. What is the molarity of…

A:

Q: The kinetics of the reaction below were studied and it was determined that the reaction rate:…

A:

Q: 1. TLC a) What are the results of loading too much compound to a TLC plate? b) What would happen if…

A: The question is on TLC and the amount of compound we need to add to it.

Q: H s) Consider this reaction that we have not studied: CH3 H Ph,CLi T = - 78°C T = +25°C 00 CH 10%…

A: Thermodynamic product is the one which is more stable product formed by equilibrium.

Q: The decomposition reaction given below is in the first order. 2 N2O5(g) - 4 N2O4(8) + O2(g) The rate…

A:

Q: Propose an efficient synthesis for the following transformation: OH - A. xs PhBr The transformation…

A: •In above reaction we are forming an alcohol functional group from ester. •Here firstly we write…

Crystal Lattices and Unit Cell

Consider a crystal. The regular and repeating pattern of constituent particles is the most distinguishing feature of crystalline solids. A crystal lattice is formed when these particles are replaced with representative points. The three-dimensional arrangement of constituent particles is known as a crystal lattice. Unit cell is that the smallest portion of a space lattice which when repeated in several directions, generate the whole lattice. Unit cell is a building block of a lattice. It is the smallest unit of cell.