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In cele doua sticle se gaseste otet de concentratii diferite de acid acetic.Ce masa de acid acetic se afla in fiecare sticla?
Prima sticla are 9% si 500 g
A 2a sticla 6% 1000g


Răspuns :

in prima sticla: md=500*9/100=45g acid acetic de c=9%
in a doua sticla: md=1000*6/100=60g acid acetic de c=6%