Odpowiedź:
Cp₂ = 18%
Wyjaśnienie:
Cp = [tex]\frac{ms}{mr} *[/tex]100%
ms = [tex]\frac{Cp*mr}{100}[/tex]
ms = [tex]\frac{15*300}{100}[/tex]
ms = 45g
mr₂ = 300 g - 50 g = 250 g
Cp₂ = [tex]\frac{45}{250}*[/tex]100% = 18%
