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finlep [7]
3 years ago
8

Titanium (ti) has an hcp crystal structure and a density of 4.51 g/cm3(a) what is the volume of its unit cell in cubic meters? (

b)
Chemistry
1 answer:
Masteriza [31]3 years ago
4 0

The volume of the Ti unit cell can be calculated using Equation :

V_{c}=\frac{n\times A_{Ti}}{\rho \times N_{A}}  

For HCP, n tthat is number of atoms/unit cell = 6 atoms/unit cell,  

atomic weight for Ti, ATi = 47.9 g/mol.  

Thus, V_{c}=\frac{6\times 47.9}{4.51 \times 6.023\times 10^{23}}

= 1.058 × 10−22 cm³/unit cell

= 1.058 × 10−28 m³/unit cell

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Chemistry! Help! Please!
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Question 1

The correct answer is a.

Explanation

The relationship between pH and pOH is given by

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The correct answer is d O_2(g).

Explanation

This is because solids and liquids do not appear in the equilibrium constant expression. Since K= \frac{[products]}{[reactants]}.

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Question 3

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Question 4

The correct answer is b. An oxidising agent must gain electrons in a reaction, thus it is the one that undergoes reduction.In order find out what is being reduced we write half reactions for molecules that change their state. Ag^+ and K^+ are spectactor ions in this reaction.

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