Răspunsuri

2014-04-13T20:39:44+03:00
P=\frac{mp}{mi} [/tex] <=> 70= \frac{mp}{1} x1 => mp=70 kg
P=puritatea, mp=masa pura. mi=masa impura
2014-04-13T23:34:04+03:00
%S=m sapun/m grasime * 100
m sapun = %S * m grasime / 100 = 1*70/100=>m sapun = 0,7 kg = 700 g sapun

%S = procentul de sapun din masa de grasime