The zincblende structure of ZnS is shown below: The edge length of this cubic unit cell is 540.9 pm. Determine the density of zincblende. The atomic masses of Zn and S are 65.38 amu and 32.065 amu, respectively. a.4.091 g cm-3 b.3.081 g cm-3 c.1.023 g cm-3 d.2.046 g cm-3

Q: n Mass Spectrometry, what high energy particle is responsible is used to bombard molecule so that it…

A:

Q: Using standard reduction potentials from the ALEKS Data tab, calculate the standard reaction free…

A:

Q: 1 SIO2 Si 2 CaCl2 Са CI MnO2 Mn 4 Feo Fe 5 Fe2O3 Fe 6 H2O2 H 7 Сао Са 8 H2S S CIF3 CI F 10 NH4 H

A:

Q: Rank the following compounds in order of INCREASING standard molar entropy. a. H2O2(l), H2O(l),…

A:

Q: Which of the following reactions of benzene requires a Lewis acid?   a Bromination   b FC…

A: Given statement is :  Which of the following reactions of benzene requires a Lewis acid?   Options…

Q: Acetylene is a gas used for welding metal. a. Write the balanced combustion reaction for acetylene,…

A:

Q: Use the periodic table to give the name and symbol for each of the following elements: (a) the…

A: In a period the electrons are filled in the same shell and in a group, the electrons are filled in…

Q: What is the IUPAC name for the following compound?

A:

Q: Question 10 Given is teh mass spectogram of an unknown compoound. This unstable cyclic compund is a…

A: Note : The compound name is cyclohexene ( see below).

Q: 23 The rates of many reactions approximately double for each 10°C rise in temperature. Assuming a…

A:

Q: 4. A chemist puts 0.090 mol of N2 (g and 0.0375 mol of 02 (g in a 1.5 L cylinder. If Keg is 4.2 x…

A:

Q: The rates of many reactions approximately double for each 10°C rise in temperature. Assuming a…

A:

Q: What happens at the anode in the voltaic cell? Cathode?

A: A voltaic cell is an electrochemical cell that uses a chemical reaction to generate electrical…

Q: When 25.0 mL of a 8.39x10 M potassium phosphate solution is combined with 12.0 ml. of a 4.85X10M…

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

Q: Name and describe the three major chemical bonds and discuss how the valence electrons are involved

A: The three major chemical bonds are - - > Ionic bond Covalent bond Metallic bond   Valence…

Q: Which of the following is directly related to reaction rate? A. Concentration B. Pressure C. Time D.…

A: Which of the following is directly related to reaction rate ?  A. Concentration   B. Pressure  C.…

Q: What is the general format of a reagent for the reaction of an alkene or alkyne to count as…

A:

Q: Give a clear handwritten answer and explain

A: Balanced the given redox reaction under basic condition and answer the following question---

Q: An electrochemical cell consists of a standard hydrogen electrode and a copper metal electrode. a.…

A:

Q: Round all your Final Answers to 3 significant digits 1. Consider the following equilibrium system at…

A: Here we are required to find the equilibrium concentration of reactant and then find the value of…

Q: What will the new equilibrium concentrations be if 0.021 mol NO and 0.021 mol SO3 are added to the…

A:

Q: Given is the mass spectra of n-octane whre peaks are labeled accordingly. Give the letter that…

A: We have to predict the peak correspond to the given questions.

Q: An SN1 reaction is done between 0.25 grams of 2,5- dihydroxy-2,5- dimethylhexane and 2.0mL of 6.0M…

A: Atom economy, E-factor, process mass intensity (PMI) all are important aspects of green chemistry…

Q: In a reverse phase chromatography setup, which of the following compounds will have the HIGHEST…

A: Ans : Toluene  (Toluene is non polar compound. Therefore elutes last in the reverse phase…

Q: 2. Touprofen, the anit-inflammatory ingredient in Advil, has the formula C13HIBO2. a. How many…

A: We are authorised to solve only first three subparts of the question. Please post rest of the…

Q: Discuss and explain at least two problems associated with the burning of fossil fuels. Is fossil…

A: Types of Fossil Fuels Let us understand how fossil fuels are formed. Fossil fuel is formed when…

Q: A photon has an energy of 2.35 x 10–19 kJ. Find the wave length of the radiation in µm.

A: Energy of photon = 2.35 × 10-19 KJ  Wavelength of radiation (in μm)  = ?

Q: The molar solubility of Ag3PO4 is equal to 1.63 x 10-5 mol/L at a certain temperature. Calculate the…

A:

Q: If the chromatogram was developed from normal phase conditions, which of the following amino acids…

A: To determine which amino acid will elute first in normal phase chromatography.

Q: 4.25 x 1024 atoms N converted to grams

A: We have given the atoms of nitrogen = 4.25 × 1024 atoms Avogadro's constant = 6.022 × 1023…

Q: Nitration reaction takes away electrons from the ring deactivating the ring and lessening the…

A: Nitration is a process in which there is the replacement of a hydrogen atom (organic compound) with…

Q: gummy bear has a mass of about 2.3g and a volume of about 1ml. About 12% of the mass of the gummy…

A: Given-> Weight of gummy bear = 2.3 gm Volume = 1 ml = 0.001 L (1L = 1000 ml) Weight of sugar =…

Q: 3. The Statue of Liberty consists of copper plates on an iron skeleton. The statue was recently…

A: EoFe3+/Fe  = -0.036 VEoCu2+/Cu =0.34 V

Q: Cl what reagent and type of reaction has happened? A HCI, H20 ; halohydrin formation (B C12, H20 ;…

A:

Q: Which of the following is the strongest oxidizing agent?   I−(aq) Li+(aq) MnO4^-(aq) ClO2(s)…

A: Which of the following is the strongest oxidizing agent?

Q: TRUE or FALSE. When phenol undergoes an FC alkylation with methyl chloride and aluminum chloride,…

A: We have to predict whether given Statement is correct or not.

Q: If you are attending the question plese answer both the questions otherwise I'll downvote

A:

Q: Which of the following conditions DOES NOT show an improvement in the elution process? O increased…

A: Elution is a separation method that uses a stream of gas or liquid moving in the opposite direction…

Q: Which of the following statements is NOT true about halohydrin formation from alkenes? A It adds-X…

A: * In halohydrine reaction alkene act as reactant . * It results  in formation of halohydrin  i.e a…

Q: Which of the following statements is NOT true for the general properties of alkenes and alkynes? A…

A: Alkenes :-  Hydrocarbons having atleast one C=C double bond are called alkenes  Alkenes have the…

Q: Solve the word problem and show your detailed solution. The final answer should have a unit and the…

A: Answer: This is a question based on energy conservation according to which energy gained by ice will…

Q: High performance liquid chromatography can separate eluates even if they are not present in the UV…

A: Here, we need to compare HPLC and UV detection techniques.

Q: Cis-but-2-ene has a different set of properties compared to trans-but-2-ene. the melting points of…

A: The correct option with explanation are as follows:

Q: or the following reaction, 3.95 grams of oxygen gas are mixed with excess carbon (graphite) . The…

A:

Q: Which of the following factors DOES NOT affect retention time of a sample undergoing normal phase…

A: Retention time is the time period where a sample spend on column. Here we have to tell which factor…

Q: Question 11 Given is the mass spectra of n-octane whre peaks are labeled accordingly. Give the…

A: We have to predict the peaks for given questions.

Q: K for the reaction of hydrogen and iodine to produce hydrogen iodide, H2(g) + 1(g) = 2HI(g) is 54.3…

A:

Q: Chemistry 19.10.-Calculate the standard potential, „E°, for this reaction from its AG° value.…

A: Given, X(s) + Y4+(aq) → X4+(aq) + Y(s)  ∆Go = 31.0 KJ = 31000 J

Q: Baking powder contains sodium bicarbonate plus an acidic salt like sodium acid tartrate or calcium…

A: Please find your solution below : Baking powder is a mixture of sodium bicarbonate (NaHCO3), other…

Q: Which amomg the fragments below will be dectected by mass Spectrophotometer? [CH3CH3]+ CH3CH3…

A: Which among the fragments below will be detected by mass Spectrophotometer?

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.