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URGENT!!!!!!!!!!!!
Ajutor


URGENT Ajutor class=

Răspuns :

sol. H2SO4 , Cm = 0,21 mol/L , Vs = 2 dm3 = 2 L

Cm = md/miuxVs => md = CmxmiuxVs

=> md = 0,21x2x98 = 41,16 g H2SO4

c% = mdx100/ms

p = ms/Vs => ms = pxVs

=> c% = mdx100/pxVs

=> 96 = 41,16x100/1,837xVs

=> Vs = 23,34 cm3