Odpowiedzi

2012-08-06T11:51:49+02:00

mr=120g

Cp=5%

 

Cp=ms/mr * 100%          /*mr

Cp*mr=ms*100%             /:100%

ms=Cp*mr/100%

 

ms=5%*120g/100%

ms=6g

 

ms₂=ms=6g

mr₂=mr+80g=200g

Cp₂=?

 

Cp₂=ms₂/mr₂ * 100%

Cp₂=6g/200g * 100%

Cp₂=3%