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@zakat778
September 2021
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anyutaladinenk
Гидрооксид натрия - NaOH
M(NaOH)=23+16+1=40
w(Na)=23/40 * 100%=57.5%
w(O)=16/40 * 100%=40%
w(H)=1/40 *100=2.5%
Ответ: 3
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Answers & Comments
M(NaOH)=23+16+1=40
w(Na)=23/40 * 100%=57.5%
w(O)=16/40 * 100%=40%
w(H)=1/40 *100=2.5%
Ответ: 3