Answer:

Explanation:
Hola,
Dado que la molaridad de una solución es definida en términos de las moles de soluto y el volumen de la solución en litros:

Primero debemos calcular las moles de hidróxido de sodio, teniendo en cuenta que su masa molar es de 40 g/mol:

Luego, el volumen el litros:

Así, calculamos la concentración molar de la solución:

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4 th one is Midwest direction. Found from visible paragraph. Pls apload the content to answer
Freezing point is the temperature at which a substance undergoes a phase transition from liquid to solid state. Water converts from liquid state to solid ice at a temperature of
.
Mass is the amount of matter contained in a substance. The SI unit of mass is kilogram. 1 kilogram is equal to 1000 g. One kilogram is defined as the mass of one cubic decimeter of water at the freezing point of water.
Answer:
False
Explanation:
The temperature at which a solid melts, known as its melting point is highly characteristic of a compound and element.
The melting point of pure substances, compounds and elements is definite and not varied.
- Melting point is an intensive property of matter.
- It does not depend on the amount of matter present.
- It is an innate or intrinsic property of every matter.
- For example, no matter the volume or mass of water, it will always boil at 100°C, all things being equal.
Therefore, melting point of most solids is characteristic of compounds and elements.
Answer:
E. 8.08 x 10⁴.
Explanation:
Hello,
In this case, for the reaction:

We can compute the Gibbs free energy of reaction via:

Since both the entropy and enthalpy of reaction are given at 298 K (standard temperature), therefore:

Then, as the equilibrium constant is computed as:

We obtain:

For which the answer is E. 8.08 x 10⁴.
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