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nika2105 [10]
3 years ago
4

When a chemist collects hydrogen gas over water, she ends up with a mixture of hydrogen and water vapor in her collecting bottle

. If the pressure in the collecting bottle is 97.1 kilopascals and the vapor pressure of the water is 3.2 kilopascals, what is the partial pressure of the hydrogen?
A.
93.9 kPa
B.
98.1 kPa
C.
100.3 kPa
D.
104.5 kPa
Chemistry
2 answers:
PSYCHO15rus [73]3 years ago
7 0

Answer:

a

Explanation:

rjkz [21]3 years ago
5 0
The total pressure inside the bottle is due to water vapors and hydrogen both.

The total pressure is 97.1 kilopascals (kPa). The partial pressure is the contribution of any gas or vapor to the total pressure.

Water vapors has a vapor pressure of 3.2 kPa. That is the contribution coming from water vapors. The total pressure minus the water vapor pressure would give us the partial pressure of hydrogen.

The answer would be (97.1 kPa - 3.2 kPa) = 93.9 kPa.
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State the definition of the partial molar Gibbs energy.
balu736 [363]

Explanation :

As we know that the Gibbs free energy is not only function of temperature and pressure but also amount of each substance in the system.

G=G(T,P,n_1,n_2)

where,

n_1\text{ and }n_2 is the amount of component 1 and 2 in the system.

Partial molar Gibbs free energy : The partial derivative of Gibbs free energy with respect to amount of component (i) of a mixture when other variable (T,P,n_j) are kept constant are known as partial molar Gibbs free energy of i^{th} component.

For a substance in a mixture, the chemical potential (\mu) is defined as the partial molar Gibbs free energy.

The expression will be:

\bar{G_i}=\mu_i=\frac{\partial G}{\partial n_i}_{(T,P,n_j)}

where,

T = temperature

P = pressure

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3 years ago
List the properties of metals and nonmetals
kondor19780726 [428]

Lustrous (shiny)

Good conductors of heat and electricity.

High melting point.

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Malleable (can be hammered)

Ductile (can be drawn into wires)

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3 0
3 years ago
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Why are the testicles outside the body instead of inside?
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1. Compare How do<br> residual soil and transported<br> soil differ?
just olya [345]

<u>Residual soil and transported  soil differ by as follows:</u>

Residual soil stays over its parent rock and transported soil forms from particles from another place.

<u>Explanation:</u>

Soil forms from weathering of rock. When a rocks get weathered it creates small paiticles. That forms different kind of soil. Soil varies in texture, structure, colour, composition and in pH level. Each and every soil type produced from parent rock. Depending upon the character of parent rock soil type is determined like basalt the igneous rock forms black soil.

Residual soil stays over parent rock it does not get off by the activities of natural agents like air, water, wind and glacier. Transported soil comes from hilly area to flat topped ground by transportation through some transporting agents of nature. It is immature soil.

7 0
4 years ago
LOSPICNOMEWTROS SON INSTRUMENTOS EMPLEADOS PARA CALCULAR DENSIDADES DE SUSTANCIAS LIQUIDAS. SE REALIZO UN EXPERIMENTO PARA DETER
Natasha_Volkova [10]

Answer:

0.66g/mL

Explanation:

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En este problema, podemos hallar la densidad sabiendo que la diferencia de masas del pic vacío y el pic lleno es la masa de la solución y que el volumen que ocupa es de 25mL:

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Así, la densidad será:

16.5g / 25mL =

<h3>0.66g/mL</h3>
3 0
3 years ago
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