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2. Calcule los gramos de azúcar que deben disolverse en 825 g de
agua para preparar una solución de azúcar al 20% p/p
Todo el proceso

Sagot :

fichoh

Respuesta:

206,25 g

Explicación:

Porcentaje de masa, m = 20%

Solución = soluto + solvente

Masa de soluto = m

Disolvente = masa de agua = 825 g

Masa de la solución = m + 825

(Masa de soluto / masa de solvente) = porcentaje de masa

(m / (m + 825)) = 20%

(m / (m + 825)) = 0,2

m = 0,2 (m + 825)

m = 0,2 m + 165

m - 0,2 m = 165

0,8 m = 165

m = 165 / 0,8

m = 206,25 g

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