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Lyrx [107]
3 years ago
14

10 ejemplos de disoluciones identificando el soluto y el solvente y el tipo de disolucion que corresponde

Chemistry
1 answer:
Keith_Richards [23]3 years ago
4 0

Answer:

hije51k 5jk45679349fjvokhffgpv9ü

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_____ is the measurement of the density of a substance as compared to water.
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Answer: Specific gravity
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Which is stronger - the attractive forces between water molecules and chromium and chloride ions, or the combined ionic bond str
Tju [1.3M]

Answer is: the combined ionic bond strength of CrCl₂ and intermolecular forces between water molecules.

When chromium chloride (CrCl₂) is dissolved in water, the temperature of the water increases, heat of the solution is endothermic.

Dissociation of chromium chloride in water: CrCl₂(aq) → Cr²⁺(aq) + 2Cl⁻(aq).

Energy (the lattice energy) is required to pull apart the oppositely charged ions in chromium chloride.

The heat of hydration is liberated energy when the separated ions (in this example chromium cations and chlorine anions) attract polar water molecules.

Because the lattice energy is higher than the heat of the hydration (endothermic reaction), we can conclude that bonds between ions are strong (the electrostatic attraction between oppositely charged ions).

3 0
3 years ago
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An atom has 10 protons and 10 electrons. What happens to the charge if you add 1 more electron
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Answer:

it becomes a negstive charge

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3 years ago
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3 years ago
The mole fraction of NaCl in an
posledela

The weight/weight percent(%w/w) of NaCl in  solution : 33.03%

<h3>Further explanation</h3>

Given

Mole fraction of NaCl : 0.132

Required

The weight/weight percent of NaCl

Solution

1 mol solution : 0.132 mol NaCl + 0.868 mol H₂O

mass NaCl :

\tt 0.132\times 58.44 g/mol=7.714~g

mass H₂O :

\tt 0.868\times 18.016~g/mol=15.64~g

Total mass = 7.714 + 15.64 = 23.354 g

\tt \%NaCl=\dfrac{7.714}{23.354}\times 100\%=33.03\%

6 0
3 years ago
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