The radius of chromium is 125 pm and the density is 7.14 g/cm³. Does elemental chromium have a face-centered cubic structure or a body-centered cubic structure? face-centered cubic structure body-centered cubic structure

Q: How would you prepare half a liter of 200 mM sucrose solution (B) if you have a 1 M solution (A)? O…

A: Given,concentration of sucrose solution ( B ) = 200 mMVolume of sucrose solution ( B ) = 500…

Q: assity eacn sampie according to the labels below. Element O Compound 6 9 ● ● Mixture

A: An element is formed by only atoms or molecules of a single type of element. There are two types of…

Q: 4. Consider an aqueous solution of 1.50 M NH4Br. (Kb for NH3 = 1.8 x 10¹5) a) Which ion is pH…

A: The objective of the question is to understand the acidic and basic properties of the ions in the…

Q: 92. Use standard enthalpies of formation to calculate AHin for each reaction. a. 2 H₂S(g) + 3 O₂(g)…

A: is given by:        Standard enthalpies of formation of the compounds given: H2S = -20.63 kJ/moleH2O…

Q: 6.) An unknown polymer sample is fractionated, and the following molar fractions are obtained.…

A: Polymers are large molecules formed by the chemical linkage of repeated small units…

Q: In mass spectrometry, alpha cleavages are common in molecules with heteroatoms. Draw the two…

A: Alpha cleavage in mass spectrometry involves the breaking of a bond adjacent to a functional group,…

Q: 4. pOH = 4.5, what is the pH? 5. pH = 3.7, what is the pOH?

A: Understanding pH and pOH is essential to comprehending how basic or acidic a solution is in…

Q: Propose a molecular formula for a compound that exhibits the given peaks in its mass spectrum. Draw…

A: Given,Determine the molecular formula of the compound.A mass spectrum is a graphical representation…

Q: What is the pH of a solution that is 0.10 M HC7H5O2 and 0.10 M NaC7H5O2 (the conjugate base)?  Ka of…

A: The objective of this question is to calculate the pH of a solution that contains a weak acid…

Q: Which of the following pair of compounds will CORRECTLY exist in cis trans isomers? (1) CH3CH=CH₂;…

A:

Q: The temperature in the stratosphere is -26.0 °C. Calculate the root-mean-square speeds of N₂, O₂ and…

A: Temperature = -26.0 0CWe need to calculate the root mean square speed of N2,O2 and O3 molecules.

Q: 5 6

A: The conversion of alkenes to alkynes can be done by treating the alkene with bromine in the presence…

Q: In self-contained breathing devices used by first responders, potassium superoxide, KO2, reacts with…

A:

Q: H₂CNC (g) H₂CCN (g) with AH = -89.5 kJ/mol and AG° = -73.8 kJ/mol at 25°C. Find the equilibrium…

A: Temperature Dependence of the Equilibrium Constant:  For a gaseous reaction the relation between…

Q: Draw the major product of this reaction. Ignore inorganic byproducts. 1. LiAlH4 2. Neutralizing…

A: For given question there is need to determine reaction of aldehyde with lithium aluminium hydride .

Q: A bottle of wine contains 12 % ethanol by volume. The density of ethanol (C2H5OH) is 0.789 g/cm3.…

A: The volume percent of the ethanol is 12%.The density of ethanol is .The volume of the solution is 1…

Q: Draw the correct product for the Diels-Alder reaction. Select Draw / ||||||

A: Given:The Diels-Alder reaction is a chemical reaction between a conjugated diene and a dienophile…

Q: Draw the product of these reduction reactions. Include all stereoisomers formed and state whether…

A:

Q: The concentration of OH in a saturated solution of Mg(OH)2 is 3.62 × 10 M. The Ksp of Mg(OH)2 is 4.7…

A:

Q: is there any other way to do this?

A:

Q: 4 PH3(g)→→P4(g) + 6 H₂(g) In a certain experiment over a specific time period, it was determined…

A: Given question is related to calculating the concentration of hydrogen formed in the given reaction

Q: A bottle of wine contains 12.7 % ethanol by volume. The density of ethanol (C2H5OH) is 0.789 g/cm3.…

A:

Q: H3C -CH3

A: Given a wedge-dash structure of  4-(tert-butyl)-5-ethyl-4-fluoro-5-methyloctane. Draw the most and…

Q: The reaction O₂(g) + 2 NO(g) → 2 NO₂(g) was studied at a certain temperature with the following…

A: Rate law is an expression which relates rate of reaction, Rate constant and concentration of…

Q: Draw the Lewis Bond-line Structure for the following molecules. (These are not correct unless you…

A:

Q: t the condensed formula CH3CH₂CO₂H into a Lewis structure (including all lone pair electrons). Click…

A: Lewis dot structure, is a diagram that shows how electrons are arranged around atoms in a molecule

Q: The average density of water was measured to be 0.994 at a temperature of 20.60C and an atmospheric…

A: we know that the density of water can vary with temperature and pressure. At 20.60°C and atmospheric…

Q: Answer the following questions based on the phase diagram (not to scale!) for hydrogen, H₂, and on…

A: A phase diagram is a graph that shows the limiting conditions for solid/ liquid/gaseous phases of a…

Q: Consider the following samples of gas: composition pressure temperature 1.4 mol Ar (g) 34. °C 1.4…

A: The objective of the question is to select the graphs that show the distributions of the speed of…

Q: Draw the Lewis dot structures, line bond structures, and condensed structures, (determine bond…

A: First calculate double bond equivalent (DBE) of the chemical formula. It will help to understand the…

Q: [H+] = 0.42 M, what is the pH?   2. [H+] = 6.5 x 10-5 M, what is the pH?

A:

Q: The compound known as butylated hydroxytoluene, abbreviated as BHT, contains carbon, hydrogen, and…

A: 1st Calculate the mass of C, H and O2nd Calculate the moles of C, H and O3rd Calculate the empirical…

Q: Synthesis Question 1 HBr Long rxn time Using the tool below, draw the starting material: Br

A: When a conjugated diene reacts with an alkene, two types of products are formed. 1,2-addition…

Q: A gas has a Henry's law constant of 7.80 x 10-4 M/atm at 15.5 °C. What volume of solution is needed…

A:

Q: The boiling point of water is 100.0°C at 1 atmosphere. How many grams of aluminum chloride (133.3…

A:

Q: For the antimony trichloride system, we assume only dilution when calculating concentrations. Are…

A: To find how the concentration of the species changes when distilled water is added to a system of…

Q: A buffer contains the weak acid HA and its conjugate base A−. The weak acid has a pKa of 5.25 and…

A: The objective of the question is to determine the relative concentrations of the weak acid (HA) and…

Q: A reaction has a rate constant of 0.000323 s-¹ at 25 °C and 0.233 s -1 at 69 °C. Part A Determine…

A:

Q: Designate the correct descriptors (R or S for each stereocenter and E or Z for each double bond) for…

A: Given three structures of organic molecules.  Designate the correct descriptor (R or S for…

Q: 15. Calculate the mass of sodium sulfate (Na2SO4) for preparing a 500 ml solution with a molar…

A: Molarity of sodium sulfate, Na2SO4 solution = 0.15 mol/L Density of sodium sulfate, Na2SO4 solution…

Q: Draw the s-cis and s-trans conformers of (Z,Z)-2,7-dimethylocta-3,5-diene. Which conformer is least…

A:

Q: Provide an IUPAC name for the structure shown. wireframe + + labels (Use cis/trans terms for cyclic…

A: In the given question we have to write the IUPAC name of the compound.The organic compounds are…

Q: This what it just said to me. Incorrect, So what information goes in the boxes in the parentheses

A: Volume = 22.3 gallonsDensity = 0.8206 g/mlMass we have to calculate

Q: Convert -98.60 °F into K. The necessary equations are °F = 1.8 °C + 32, and K = °C + 273.15 First,…

A:

Q: Solubility (g solute in 100 mL H₂O) 100 60- 40 20 20 Temperature (°C) 60 Use the CuSO4 in water…

A: Solubility: It refers to the amount of substance that can be dissolved in 100 mL of water at a given…

Q: Determine the number of stereocenters in the below molecule. Label each center with -R and -S…

A: The objective of the question is to find the total number of stereocenters in the given molecule…

Q: A solution has a density of 1.22 g/mL. What volume of the solution has a mass of 48.2 g?. A) 39.5 mL…

A: Density of the solution = 1.22 g/mLMass of the solution = 48.2 g

Q: What is the half-life for a particular reaction if the rate law is rate = (1021 M-¹*min-¹)[A]² and…

A: For zero order reaction, the units for rate constant = M.s–1.For first order reaction, the units for…

Q: 27) A sample is determined to contain 70.00 % C, 3.36% H, and 26.64% O with a molar mass aro…

A:

Q: Use the Chemical Appendix at the back of the Lab Manual to determine the precautions that must be…

A: In laboratory we use different chemicals but to use all these chemicals we have to take care of…

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.