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andrey2020 [161]
3 years ago
15

Determinar la cantidad de atomos que hay en 7.5g de S​ y 125g de Fe​

World Languages
1 answer:
Scorpion4ik [409]3 years ago
4 0

Answer:

a. Número de átomos de S = 1.41 × 10^23 atoms

b. Número de átomos de Fe = 1.37 × 10^24 atoms

Explanation:

Dados los siguientes parámetros;

Masa de Sulphur, S = 7.5g

Masa de Iron, Fe = 125g

a. Para determinar el número de átomos en 7.5g de S;

Masa molar de S = 32

Para encontrar el número de lunares;

Numero \; de \; lunares = \frac {Masa}{Masa \; molar}

Sustituyendo en la ecuación, tenemos;

Numero \; de \; lunares = \frac {7.5}{32}

Numero de lunares = 0.2344 lunares.

Sabemos que la constante de Avogadro es igual a 6.02 * 10^23 mol¯¹

Número de átomos de S = Numero de lunares de S * Avogadro constant

Sustituyendo en la ecuación, tenemos;

Número de átomos de S = 0.2344 × 6.02 * 10^23

<em>Número de átomos de S = 1.41 × 10^23 atoms</em>

b. Para determinar el número de átomos en 125g de Fe;

Masa molar de Fe = 55

Para encontrar el número de lunares;

Numero \; de \; lunares = \frac {Masa}{Masa \; molar}

Sustituyendo en la ecuación, tenemos;

Numero \; de \; lunares = \frac {125}{55}

Numero de lunares = 2.2727 lunares.

Sabemos que la constante de Avogadro es igual a 6.02 * 10^23 mol¯¹

Número de átomos de Fe = Numero de lunares de Fe * Avogadro constant

Sustituyendo en la ecuación, tenemos;

Número de átomos de Fe = 2.2727 × 6.02 * 10^23

<em>Número de átomos de Fe = 1.37 × 10^24 atoms</em>

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