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Nataly_w [17]
3 years ago
12

The density of an object with a volume of 3.0 mL and a mass of 15.0 g is

Chemistry
1 answer:
Sav [38]3 years ago
6 0
The density equals to the mass divided by volume. The equation of calculation is density= 15/3=5.0 g/ml. Notice the unit and the significant figures.
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In a study of the following reaction at 1200 K it was observed that when the equilibrium partial pressure of water vapor is 15.0
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The value of K_p for this reaction at 1200 K is 4.066.

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Partial pressure of water vapor at equilibrium = p^o_{H_2O}=15.0 Torr

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Applying Dalton's law of partial pressure to determine the partial pressure of hydrogen gas at equilibrium:

P=p^o_{H_2O}+p^o_{H_2}

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3 Fe(s) 4 H_2O(g)\rightleftharpoons Fe_3O_4(s) 4 H_2(g)

The expression of K_p is given by:

K_p=\frac{(p^o_{H_2})^4}{(p^o_{H_2O})^4}

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