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Genrish500 [490]
2 years ago
5

Calcular la masa de Mg que se necesita hacer reaccionar con CuSO4 para formar 1.89 g de Cu2O según la siguiente ecuación: Mg + C

uSO4 + H2O MgSO4 + Cu2O + H2
Chemistry
1 answer:
natita [175]2 years ago
7 0

Answer:

0.642 g

Explanation:

La ecuación balanceada es:

  • 2Mg + 2CuSO₄ + H₂O → 2MgSO₄ + Cu₂O + H₂

Primero <u>convertimos 1.89 g de Cu₂O en moles</u>, usando su <em>masa molar</em>:

  • 1.89 g ÷ 143.09 g/mol = 0.0132 mol Cu₂O

Después <u>convertimos moles de Cu₂O en moles de Mg</u>, usando los <em>coeficientes estequiométricos</em>:

  • 0.0132 mol Cu₂O * \frac{2molMg}{1molCu_2O} = 0.0264 mol Mg

Finalmente <u>convertimos moles de Mg en gramos</u>, usando la <em>masa molar de Mg</em>:

  • 0.0264 mol Mg * 24.305 g/mol = 0.642 g
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