Odpowiedź :
Cp1= 5%
mr1= 400g
ms1=(Cp1*mr1)÷100%
ms1= (5%*400 g)÷100%=20g
Nowy r-r:
ms2= 20 g+10 g=30 g
mr2= 400 g +10 g=410 g
Cp2=(ms2÷mr2)*100%
Cp2= ( 30g÷410g)*100%=7,32%
Cp1= 5%
mr1= 400g
ms1=(Cp1*mr1)÷100%
ms1= (5%*400 g)÷100%=20g
Nowy r-r:
ms2= 20 g+10 g=30 g
mr2= 400 g +10 g=410 g
Cp2=(ms2÷mr2)*100%
Cp2= ( 30g÷410g)*100%=7,32%