NaOH
w(Na)=(23/40)×100%=57.5%
w(O)=(16/40)×100%=40%
w(H)=(1/40)×100%=2.5%
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NaOH
w(Na)=(23/40)×100%=57.5%
w(O)=(16/40)×100%=40%
w(H)=(1/40)×100%=2.5%