show work for 6 and explain 5 because i get C as the answer Temperature (oC) 3.

Question

show work for 6 and explain 5 because i get C as the answer

Temperature (oC) 3. The unit cell to the right is: A. body centered tetragonal B. face centered tetragonal C. close packed tetragonal D. simple tetragonal 4. What is false about the unit cell to the right? A. It contains an adamantane ring. B. It is body centered C. It is face centered. D. There are 8 atoms in this unit cell. 5. 30 g of the diprotic acid, sulfuric acid, (98.079 g/mole) shown here, is mixed with 2 L of water late the nomality of the acid. A. 0.3059N O, O B. 0.6118 N C. 0.1529 N D. 0.1020 H OH 6. Use Raoult's Law to calculate the partial pressure above a solution of water containing 5 moles NaCl in 95 moles of water The vapor pressure of water at room temperature: 17.4 mm Hg. (Assume complete dissociation of the NaCI.) A. 49.59 mm Hg B. 8.256 mm Hg C. 18.53 mm Hg D. 15.74 mm Hg

Explanation / Answer

Ans 3 : A) Body centered tetragonal

The cell in the picture has atoms on all its 8 corners , and 1 atom at the body center of the cell.

The contribution of each corner atom = 1/8 , so 1/8 x 8 = 1

And one at the the center , so 1 +1 = 2

The unit cell is body centered tetragonal.

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