Odpowiedź:
Wyjaśnienie:
Dane: Szukane:
V₁ = 30cm³ Cp₃ = ?
Cp₁ = 5%
d₁ = 1,02g/cm³
V₂ = 130cm³
Cp₂ = 24%
d₂ = 1,14g/cm³
m = d*V
mr₁ = 1,02*30
mr₁ = 30,6g
m = d*V
mr₂ = 1,14*130
mr₂ = 148,2g
ms = Cp*mr/100%
ms₁ = 5%*30,6g/100%
ms₁ = 1,53g
ms = Cp*mr/100%
ms₂ = 24%*148,2g/100%
ms₂ = 35,57g
Cp₃ = ms₃*100%/mr₃
ms₃ = 1,53g + 35,57g
ms₃ = 37,1g
mr₃ = 30,6g + 148,2g
mr₃ = 178,8g
Cp₃ = 37,1g*100%/178,8g
Cp₃ = 20,7%