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Alja [10]
3 years ago
6

You find an unknown substance, which has a density of 10.0 g/ml, and occupies a volume of 80.0 ml. What is the mass of the unkno

wn?
Chemistry
1 answer:
Svetlanka [38]3 years ago
4 0

Answer:

Density=mass / volume.

10= mass /80.

mass=10×80.

=800g

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Vera_Pavlovna [14]

Answer:

ΔG = 16.218 KJ/mol

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∴  R = 8.314 J/K.mol

∴ T = 298 K

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⇒ Q = 0.00300 / 0.100 = 0.03

⇒ ΔG = 7530J/mol - (( 8.314 J/K.mol) * ( 298 K ) * Ln ( 0.03 ))

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Answer : Broadly solids are divided into three categories;

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ii) Ionic solids are basically salts, such as NaCl, in which the molecules are held together by the strong force of attraction between ions of opposite charge.

iii) Metallic solids are found in metals which have the force of attraction between atoms of metals, such as copper and aluminum, or alloys, such as brass and bronze, are metallic bonds.


8 0
3 years ago
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