V1= 500 cm3 , c1%= 60% , p= 1,503 g/cm3
V2= 3616 cm3 , c2= 88% , p= 1,808 g/cm
------------------------------------------------------------/---
Cm.finala= ? M
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stim ca Cm= md/MxVs
Vs.final = V1 + V2 = 500+3616 = 4116 cm3 = 4,116 L
c% = mdx100/ms
p = ms/Vs
=> ms1 = p1xV1 = 500x1,503 = 751,5 g
=> ms2 = p2xV2 = 3616x1.808 = 6537,73 g
=> md1= ms1xc1/100 = 751,5x60/100 = 450,9 g
=> md2= ms2xc2/100 = 6537,73x88/100 = 5753,2 g
=> md.final = md1 + md2 = 6204,10 g
M(H2SO4) = 2x1+32+4x16 = 98 g/mol
=> Cm = md.final/M(H2SO4)xVs.final
= 6204,10/98x4,116 = 15,38 M
