I need help with these two questions? 9. Iron solid adopts a body-centered cubic structure with a unit cell edge length of 287pm. Based on this information, calculate the density in g/mL of iron.10. Below is the phase diagram for water. Draw or describe how this phase diagram willchange based on the addition of a weak acid. (Note: This is not really how phasediagrams of mixtures work, but we're going to using this to map two ideas togetherfor now.)Pressure in atm217.75(Criticalpressure)1.000.0060DPhase Diagram for WaterSPNormalfreezing pointBATriplepoint0.00 0.01EkCNormalboiling point100.00Temperature in °CCriticalPointE373.99

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9. Iron solid adopts a body-centered cubic structure with a unit cell edge length of 287 pm. Based on this information, calculate the density in g/mL of iron.

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter9: Liquids, Solids, And Materials

Section: Chapter Questions

Problem 116QRT

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Concept explainers

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.

Question

I need help with these two questions?

9. Iron solid adopts a body-centered cubic structure with a unit cell edge length of 287
pm. Based on this information, calculate the density in g/mL of iron.
10. Below is the phase diagram for water. Draw or describe how this phase diagram will
change based on the addition of a weak acid. (Note: This is not really how phase
diagrams of mixtures work, but we're going to using this to map two ideas together
for now.)
Pressure in atm
217.75
(Critical
pressure)
1.00
0.0060
D
Phase Diagram for Water
SP
Normal
freezing point
B
A
Triple
point
0.00 0.01
Ek
C
Normal
boiling point
100.00
Temperature in °C
Critical
Point
E
373.99

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