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tata1232
@tata1232
July 2022
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решить задачу 10 г HNO3+40 гH2O найти W (HNO3)
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коллегист
Verified answer
W(HNO3)=m(HNO3)/m(смеси HNO3+H2O)=
=10g/50g=0,2 0,2*100%=20%
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tata1232
а 50 г ведь нет ,40 г по условию
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W(HNO3)=m(HNO3)/m(смеси HNO3+H2O)==10g/50g=0,2 0,2*100%=20%