Calcium crystallizes with a body-centered cubic structure. (a) How many Ca atoms are contained in each unit cell? (b) How many nearest neighbors does each Ca atom possess? (c) Estimate the length of the unit cell edge, a, from the atomic radius of calcium (1.97 Å). (d) Estimate the density of Ca metal. Calcium has an atomic weight of 40.08 amu.

Q: A+B+C → D Reaction [A] (М) [B] (М) [C] (М) Experiment M. Rate (-) 1 0.10 0.10 0.10 0.003 2 0.20 0.10...

A: The given reaction is as follows: A + B + C → D Let the order of the reaction with respect to A, B, ...

Q: 2. A solution may contain any of the three group I cations. A white precipitate is formed the additi...

A: The most important cations in 1st group are Ag+, Hg2+2, and Pb2+. The solution may contain any of th...

Q: The correct way to write a balanced equation for the nuclear reaction: thorium-232 decays and produc...

A:

Q: H2SO4 CH;CHCH2OH CH3 H2SO4 2 CH,CHCHCH,CH3 CH3 Majo CHaCH-CHCH3 +2KOH Br Br

A: ->H2SO4 is a dehydrating agent which form alkene. ->Alco KOH is used for elimination reaction....

Q: What is the calculated value of the cell potential at 298K for an electrochemical cell with the foll...

A:

Q: e mass of

A:

Q: Aqueous hydrobromic acid (HBr) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium b...

A:

Q: Half-reaction E° (V) Hg2+(aq) + 2e Pb2+(aq) + 2e Hg(I) 0.855V → Pb(s) -0.126V Mg2+(aq) + 2e Mg(s)-2....

A: The species which have greater Eo value of reduction will be reduced by easy means.  So, it will be ...

Q: Common aspirin is acetylsalicylic acid, which has the structure shown below and a pKapKa of 3.5. Ca...

A: Given data : Mass of Aspirin = 670 mg water = 10 ounces pKa of Aspirin = 3.5 Molar mass of Aspirin =...

Q: Ions That Form Soluble Compounds Exceptions Group 1 ions (Li*, Na*, etc.) ammonium (NH,+) nitrate (N...

A: Please find the below attachment.

Q: binding energy E

A:

Q: A mixture of krypton and oxygen gas is expanded from a volume of 31.0L to a volume of 95.0 L, while ...

A: Given :- External pressure Pext = 71.0 atm Initial Volume Vi = 31.0 L Final Volume Vf = 95.0 L

Q: 6. Propose a route to Compound 2 from only bromobenzene and methyl formate as carbon sources, plus a...

A: Let us talk about the grignard reagent.  Here firstly the bromobenzene is used.  The we have to reac...

Q: Identify the method of sterilization/ chemical agent described A method of sterilization that invol...

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for yo...

Q: Phosphoric acid, which is commonly used as rust inhibitor, food additive and etching agent for denta...

A: Given, The first step, phosphorus and oxygen react to form diphosphorus pentoxide: P4(l) + 5O2(g) --...

Q: ÇI CI -CH3 +2Zn 2ZnCl2 + Č CI Cao +NazCO3 + CH;CHCOONA + NaOH CH3 d.e. 2 CH3CHBR + 2Na 2NaBr + CH3

A: Given, 

Q: How many MOLECULES of boron trifluoride are present in 2.32 moles of this compound? Answer: Molecule...

A:

Q: Consider the following half-reactions: Half-reaction E° (V) I2(s) + 2e 21(aq) 0.535V Cu2+(aq) + 2e¯ ...

A: we have given the reduction potential values: 1) higher the reduction potential, the strongest the o...

Q: Hydrogen sulfide and oxygen react to form sulfur dioxide and water, like this: 2H,s(g)+30,(g) → 2s0,...

A: Given the reaction under consideration, 2H2S + 3O2 ---> 2SO2 + 2H2O We have to determine in which...

Q: Decide whether each molecule or polyatomic ion is polar or nonpolar. If the molecule or polyatomic i...

A: first we have to determine given molecule is diatomic or polyatomic  Then we have to find given mole...

Q: 2 NO + 2 H2 → N2 + 2 H2O Reaction Rate [NO] (М) [H2] (М) Experiment 1 0.420 0.122 0.136 2 0.210 0.12...

A: Initially we find order with respect to both NO and H2  Then find value of rate constant  Finally we...

Q: Calculate ∆H for the reaction 4NH3 (g) + 5O2 (g) → 4NO (g) + 6H2O (g), from the following data. 1. N...

A: 4NH3 (g) + 5O2 (g) → 4NO (g) + 6H2O (g) 1. N2 (g) + O2 (g) → 2NO (g) , ∆H = -180.5 kJ 2. N2 (g) + 3H...

Q: The Specific Charge of Copper lons Experiment: The rate of deposition of copper (mass deposited per ...

A:

Q: the moles of gl

A:

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 339.0 g sample ...

A:

Q: Consider five solutions that all contain 10 g of solute in 100 mL of solution. Which has the lowest ...

A: The lowest concentration of ions among them is given below

Q: Using tne Bronstea-Lowry concept of acias ana bases, identiry the Brønstea-Lowry acid and base in ea...

A: Bronsted-Lowry does not define a substance as specifically an acid or a base; it defines reaction en...

Q: Use the References to access important values if needed for this question. When the Cu2+ concentrati...

A:

Q: Complete the equation to show how pyridine, C,H,N, acts as a Brønsted-Lowry base in water. equation:...

A: Given :-  C5H5N + H2O <---->  To write :- complete equation and also show that how C5H5N acts ...

Q: When 178.0 J of energy is supplied as heat to 1.90 mol of gas molecules, the temperature of the syst...

A: Heat = 178.0 J Moles = 1.90 mole  ∆T = 1.78 K    

Q: What is the name of the sugar shown here? OH OH O L-xylose O D-xylose O D-erythrose O L-erythrose O ...

A: To identify the name for given Sugar.

Q: Calculate the kinetic energy of a 109. mg raindrop moving at a speed of 7.9 Round your answer to 2 s...

A:

Q: 2. Indicate the reactants and products as appropriate: LOH Hz SOy 1402- 17°c Pociy :2

A:

Q: Gaseous methane (CH) reacts with gaseous oxygen gas (o,) to produce gaseous carbon dioxide (Co,) and...

A:

Q: 3. Draw the electrochemical cell for the following reaction: Alo + OCI () +HOm → Cl) + OH( + AP*) a)...

A:

Q: A chemist measures the amount of bromine liquid produced during an experiment. She finds that 309. g...

A:

Q: An engineer is preparing an experimental gas fuel mixture for a rocket launch. There are 5.00 g of h...

A: Here use daltons law of partial pressure. Partial pressure = Mole fraction x total pressure. Here pe...

Q: Is the use of an indicator to determine a concentration using titration as good as using a pH meter?...

A: The explanation of the following is:  

Q: What happens to the intermolecular forces during phase transition? What is the relationship of phase...

A: IMF stands for  intermolecular forces During the phase transition, the intermolecular forces of attr...

Q: There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of ...

A: The two reaction is as follows: First reaction: CaC2(s) + 2H2O(g) →C2H2(g) + Ca(OH)2(s) Second react...

Q: Industrial production of hydrogen gas uses the reaction shown below. If 1.00 metric ton of propane r...

A: Theoretical yield :-  The maximum amount of the product formed when reactants are consumed as per ba...

Q: A chemist determines by measurements that 0.025 moles of hydrogen gas participate in a chemical reac...

A: Given ;- no.of moles of H2 gas = 0.025 mol  To calculate :- mass of H2 gas (in grams)

Q: A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gas...

A:

Q: 5.00 mol of a perfect gas expand isothermally at 298 K from 2.00 dm3 to 12.00 dm3 Calculate the wor...

A:

Q: An unknown hydrocarbon contains carbon, hydrogen, and oxygen. Combustion of 1.5000g of the hydrocarb...

A:

Q: Nitrogen monoxide and ozone react to form nitrogen dioxide and oxygen, like this: NO(g)+O3(9) → NO,(...

A: NO+O3 = NO2+O2 If temperature is raised the pressure of O3 will decrease ( endothermic reaction ) . ...

Q: Which compound has the weaker London dispersion forces? Chemical A: Chemical B:

A: To determine which of the given Compound have weaker london dispersion forces. Strongest the intermo...

Q: Is N2O4 molecular or empirical formula

A: Molecular formula : The molecular formula shows exact number of different types of atoms present in ...

Q: What is the pH of a solution containing 0.055 mol L-1 HCOOH and 0.141 mol L-1 HCOO- ?

A:

Q: Predict whether the following NH4CN solution will be acidic, basic, or essentially neutral. Explain ...

A: In case of salt hydrolysis one acid and one base are generated.  If acid is stronger than base then ...

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.