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d¹ = 1.2g/cm³
Cp₁ = 15%
ms = ?
mw = ?
V₂ = 60cm³
d¹ = 1g/cm³
Cp₂ = ?
R:
m₁ = 100cm³ * 1,2g/cm³ = 120g
m₂ = 120g³ + 60cm³ * 1g/cm³ = 180g
ms = 120g * 15% = 18g
mw = 120 - 18 = 102g
Cp = 18/180 * 100% = 10%