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amestecam 160 ml otet cu 1l apa
C=?


Răspuns :

probabil ca vrei sa afli c%

vd= 160ml 
v,apa= 1000ml
vs= vd+v,apa=1160ml
c=vdx100/vs........................calculeaza c%, in procente volumetrice !

[tex]c = \frac{md \times 100}{ms} [/tex]
md= masa dizolvat
md= 160ml otet
m apa= 1l =1000ml

[tex]ms = md + m \: apa[/tex]
ms= 160ml+1000ml
ms= 1160 ml

[tex]c = \frac{md \times 100}{ms} [/tex]
[tex]c = \frac{160 \times 100}{1160} [/tex]
c= 13,79%