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lisiza999
@lisiza999
October 2021
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Определить m Nacl и m H2O для приготовления 400 г 20% раствора Nacl.
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kattycats
M(NaCl) = m(p-pa)xW(NaCl)/100 = 400x20/100 = 80 г
m(H2O) = m(p-pa) - m(NaCl) = 400 - 80 = 320 г
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Answers & Comments
m(H2O) = m(p-pa) - m(NaCl) = 400 - 80 = 320 г