Răspuns:
ms1=50g
c1=10%
md1=c1xms1/100=5gH2SO4
ms2?
c2=60%
md2= c2xmd2/100=60ms2/100=0,6ms2
ms3=ms1+ms2= 50+ms2
md3=md1+md2= 5+0,6ms2
c3=md3x100/ms3= (50+0,6ms2)x100/(50+ms2)
1000+20ms2=500+60ms2
ms2=12,5g
a)ms1/ms2= 50/12,5
b) ms3= ms1+ms2= 62,5g
Explicație: