A hypothetical element with atomic radius of 100 pm forms a cubic unit cell that has an edge length of 441 pm. If the unit cell can fit up to 6 atoms, what would be its atomic packing factor (in %)?

Q: 54. If the concentration of mercury (Hg) in the water of a polluted lake is 0.33 micrograms of Hg…

A: Given, Area of the lake = 10 km2 = 107 m2 average depth = 15 m mercury concentration = 0.33…

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Q: It says change in H is incorrect.

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Q: N 2 O 4(g) ↔ 2 N O 2(g)      Kc = 4.63 x 10 -3 at 250C If 1.00 M NO2 was placed in a flask at…

A: N 2 O 4(g) ↔ 2 N O 2(g)  [NO2] = 1.00 M [NO2]eqi =  0.047 M

Q: a. Provide a name for both metabolites. b. What kind of reaction occurs here? c. What enzyme…

A: Note: According to our guidelines we are supposed to answer only first three subpart of question.…

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Q: 7. What is the molecular formula of the compound if its empirical formula is HCO2 and its molecular…

A: The Answer to the following question is-

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Q: If the degree of hydration=70% and the weight of cement =100gm, the volume of non-evaporable water…

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Q: What is the significant figure for this problem?

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Q: 7. The carbons indicated with the arrows in the following two compounds, show. OR OH A) The same…

A: Dear student since you have posted multiple questions we will solve the first first question for you…

Q: 5. What is the percentage composition of the elements present in sodium carbonate?

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

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Q: CLASSIFY IF ACID, BASIC, OR NEUTRAL NaClO4 SrI2 MgCO3 NH4CN Fe(NO2)2 CaCl2

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Q: 7. Consider the initial concentrations of gases below, calculate Qp and predict the direction of…

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Q: ch of the indicated lone pairs are delocalized? Briefly explain your answer. Z-I H I

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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.