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19551605vfvf
@19551605vfvf
July 2022
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Смешали 600г 8%-го раствора серной кислоты и 200г 12%-го.Какова концентрация нового раствора?
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melhell
Нужно определить массу раствора.
m1
= 600 x 8 : 100 = 48
m2
= 200 x 12 : 100 = 24
% = (48 + 24) х 100 : 600+200 =
9%
21 votes
Thanks 30
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Answers & Comments
m1 = 600 x 8 : 100 = 48
m2 = 200 x 12 : 100 = 24
% = (48 + 24) х 100 : 600+200 = 9%