Determine the number of atoms per unit cell shown - Zinc blende (cubic ZnS) -

Q: b. For electrical conductivity, is there any correlation with the periodic chart? Give the outer…

A: Elements: A pure material known as an element is made up of just one type of atom and cannot be…

Q: gives the concentration of N:Os versus time in the previous question Q14? C) [N20s]-[N2Osloe D)…

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Q: Give the electron configuration of [Cr(NH3)sCI]Br2 using the crystal field theory of the and show…

A: Given complex is: [Cr(NH3)5Cl]Br2  NH3 is neutral ligand having charge zero.  Cl and Br are anionic…

Q: 5. Heparin has a molar mass of 600g/mol. For a patient on a blood thinner regimen, you need 100 ml…

A: Given, Note: 1 molar = 106 micro molar Concentration of Heparin solution = 500 micro molar = 0.0005…

Q: What other properties, in addition to using a radioisotope having a short half life, do medical…

A: The concept used in this question is from Radioactive isotopes of Inner Transition elements.…

Q: Which of the following complexes can exhibit cis and trans isomers?  (Check ALL correct answers.)…

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Q: Calculate the dosage in milligrams per kilogram body weight for a 170 lblb adult who takes two…

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Q: Balance the following equation by adding the appropriate coefficients. Do not include physical…

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Q: s P2H4 polar or nonpolar?

A: when molecule have overall dipole moment is zero then molecule is non polar in nature.

Q: 2.1 Sites in a compound with a 6+ are the places most likely to be attacked by an anion, such as…

A: We have to identify two carbon centers in the given compound those having partial positive charge,…

Q: At 25.0 °C, the reaction CO2(g) + H2O(l) ⇔ H+(aq) + HCO3-(aq) is at equilibrium when PCO2 = 3.50…

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Q: Water has a normal boiling point of 100.00oC.  What is the vapor pressure of water at 65.50oC in…

A: To calculate the vapor pressure at 65.50°C , we would use Clausius-Clapeyron equation.

Q: Which type of chemical bond forms between the hydrogen and oxygen atoms in a hydroxyl functional…

A: The ionic bond is an electrostatic attraction force, formed between the ions and it is a strong…

Q: a) b) Dienophiles F LL FF Stable resonance structures

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Q: Why is diethylamine more basic that methylation? ( provide structures)

A: Basicity of an organic amine compound is determined by the availability of lone pair electrons on…

Q: Given this data determine the reaction rate between t = 10s and t =20;, and t = 40s and t = 50s…

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Q: Which of the following does not have a associated with it at room temperature A) acetic anhydride B)…

A: Solution We know that only liquid substances have measurable density, but it is deficult to…

Q: Arrange the following structures in order of decreasing basicity: CH2NH2, NH3 and (CH3)2NH

A: In this , Basicity Depends on the group attached to the amine . If it's show + I effect then it…

Q: The average density of sea water is 1.02 g/mL. If sea water contains an average of 260 ppm of…

A: Given - Density of sea water = 1.02 g/mL             Concentration of sulfate = 260 ppm…

Q: Which of the following complexes is a coordination isomer of [Pd(bipy)2][Pd(OH)4]? Group of answer…

A: Coordination isomerism: In this isomerism, the ligands are interchanged between cationic and anionic…

Q: Peptides can be separated using an ion-exchange column based on their isoelectric (pl) values. At…

A: Isoelectric point : It is the ph point at  which the given molecule or molecule in consideration…

Q: molal freezing point depression constant K,=7.13 °C-kg-mol solution freezes at 0.7 °C. Calculate the…

A: Solution: We know, The freezing point depression is a colligative property that can be calculated…

Q: Define normality and molarity.

A: Molarity:  It is defined as the number of moles of a solute dissolved in 1000mL of the solution.…

Q: 13) A solution was made by dissolving 4.05 g of a solute in 1369 g of acetone. The solution boiled…

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Q: Draw 3 best resonance structures, and circle the best resonance structure(s) of the ones you…

A: We have find out the best resonance structure of given compound.

Q: The reaction CO2(g) + H2O(l) ⇔ H+(aq) + HCO3-(aq) has ΔH° = -12.65 kJ mol-1 and ΔS° = -192.5 J mol-1…

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Q: Draw 3 best resonance structures, and circle the best resonance structure(s) of the ones you…

A: Resonance is defined as the delocalization of pi electrons or lone pair of electrons in molecules.

Q: ). a e Which of the label bonds is trans to bond b? d с Which of the label bonds in the following…

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Q: gure 1.2: 'H-NMR of unknown acid C (C₂H₂NO4) Figure 1.3: 'H-NMR of unknown acid D (C₂H10O2) Based on…

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Q: The value of ΔG° for the conversion of dihydroxyacetone phosphate to glyceraldehyde-3-phosphate…

A: Given that  The value of ΔG° for the conversion of dihydroxyacetone phosphate to…

Q: The two discrete molecules, oxygen and sulphur exist in nature as O2 and Se even though they are…

A: Both oxygen and sulphur present in same Chalcogen group. Oxygen is present in second period of…

Q: Hint:[ (molar mass of H-1, N-14g/mol), (R-0.0821 L.atm/K.mol), (The specific heat of water is…

A: Chemical kinetics can be defined as the branch of chemistry that deals with rates of chemical…

Q: The two discrete molecules, oxygen and Sulphur exist in nature as O2 and S8 even though they are…

A: Oxygen and sulphur belongs to VI A group in the periodic table. Oxygen exist in nature as O2 and…

Q: The reaction CO2(g) + H2O(l) ⇔ H+(aq) + HCO3-(aq) has ΔH° = -12.65 kJ mol-1 and ΔS° = -192.5 J mol-1…

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Q: Calculate the energy, fregue and ware length the first three lines in the balmer series: n=3, 4 and…

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Q: the value of Ke for this reaction. B) 0.612 C) 0.411 A) 1.26 D) 1.96 17) Consider the following…

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Q: Consider the following reaction: (a) The rate law for this reaction is first order in NO₂(g) and…

A: Given -> 2NO2(g) + O3(g) ----> N2O5(g) + O2(g)  -> first order with respect to NO2. ->…

Q: clear symbol: Nucleus 5 prot- 6 neut

A: Solution: We know that from atomic number we can guess the corresponding element. The atomic number…

Q: 11) Calculate the osmotic pressure associated with 90.0 g of an enzyme of molecular weight 98,000…

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Q: C) 12.3 21) What is the pH of 42.0 M aqueous solution of NH3 (ammonia). It's Ks- 1.8 x 105. A) 12.4…

A: ammonia is weak base. so for weak base use formula: pOH = 12pKb - 12log C where C = concentration of…

Q: Based on your research and observations, write the balanced chemical equation/s of the sample/s that…

A: In this question, we have to identify which sample will give positive test for ethanolic silver…

Q: Some H2PO4- and HPO42- are added to water such that the concentration of each is the same value,…

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Q: Chemistry A solution is 0.010 M in both Br- and SO4^-2. A 0.250 M solution of lead(II) nitrate is…

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Q: (a) 2.6 Which structure has a negative formal a charge on oxygen? :Ö: (b) Ꮌ Ꮌ . H (c) d H*

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Q: (a) HO. (b)

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Q: Why is diethylamine more basic than methylamine? (Provide structures)

A: here we are required to provide an explanation for the statement that diethyl amine is more basic…

Q: A cube-shaped water tank having 7 ft side lengths is being filled with water. The bottom is solid…

A: Given, Side length of the cube shaped tank = 7 ft Maximum force it can withstand =  200 lb density…

Q: Select all of the following that would be soluble in the water layer of an extraction that utilizes…

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Q: C. SiSz S = St= S. D. SeCl₂.. :CI-Se-ci:

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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.