I’m stuck in part 1 and 2 please thank you la). Vanadium crystallizes in a body-centered cubic lattice (the V atoms occupy only the lattice points). How many V atoms are present in a unit cell?AND1b) Gold (Au) crystallizes in a cubic close-packed structure (face centered cubic unit cell). The unit cell edge length is 144 pm. What is the density of the gold crystal?2.) In an experiment to determine the molar mass of dichlorobenzene C6H4Cl2 using freezing point depression of solvent cyclohexane, a student uses 10 mL or cyclohexane (density 0.779 g/ml) and obtains anaverage freezing point of 5.75 degrees Celsius. She graphically determines the new freezing point to be 2.8 degrees Celsius by setting equation of 2 lines equal to each other. What is her DT? If she uses a total of0.2301 grams of dichlorobenzene what is her calculated molecular weight for the solute? What is % error from actual molecular weight of solute? Is this a reasonable result?3.) Calculate the molality of the following aqueous solutions:a) 5.20 M NaCl solution (density of solution = 1.32 g/mL).(b) 0.78 M NaOH solution (density of solution = 1.14 g/mL).() 2.51 M NeUCO

Answered: Image /qna-images/answer/a8d35ae7-f987-448f-b4dd-c9e910890751.jpg

la). Vanadium crystallizes in a body-centered cubic lattice (the V atoms occupy only the lattice points). How many V atoms are present in a unit cell? AND 1b) Gold (Au) crystallizes in a cubic close-packed structure (face centered cubic unit cell). The unit cell edge length is 144 pm. What is the density of the gold crystal? 2.) In an experiment to determine the molar mass of dichlorobenzene CHach using freezing point dopri f

la). Vanadium crystallizes in a body-centered cubic lattice (the V atoms occupy only the lattice points). How many V atoms are present in a unit cell? AND 1b) Gold (Au) crystallizes in a cubic close-packed structure (face centered cubic unit cell). The unit cell edge length is 144 pm. What is the density of the gold crystal? 2.) In an experiment to determine the molar mass of dichlorobenzene CHach using freezing point dopri f

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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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’m stuck in part 1 and 2 please thank you

la). Vanadium crystallizes in a body-centered cubic lattice (the V atoms occupy only the lattice points). How many V atoms are present in a unit cell?
AND
1b) Gold (Au) crystallizes in a cubic close-packed structure (face centered cubic unit cell). The unit cell edge length is 144 pm. What is the density of the gold crystal?
2.) In an experiment to determine the molar mass of dichlorobenzene C6H4Cl2 using freezing point depression of solvent cyclohexane, a student uses 10 mL or cyclohexane (density 0.779 g/ml) and obtains an
average freezing point of 5.75 degrees Celsius. She graphically determines the new freezing point to be 2.8 degrees Celsius by setting equation of 2 lines equal to each other. What is her DT? If she uses a total of
0.2301 grams of dichlorobenzene what is her calculated molecular weight for the solute? What is % error from actual molecular weight of solute? Is this a reasonable result?
3.) Calculate the molality of the following aqueous solutions:
a) 5.20 M NaCl solution (density of solution = 1.32 g/mL).
(b) 0.78 M NaOH solution (density of solution = 1.14 g/mL).
() 2.51 M NeUCO

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