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mariamadaeva
@mariamadaeva
July 2022
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Найти массу NaOH, который получится при взаимодействии 20 г Na с H2O?
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Alfiusha13makoneko
2Na + 2H2O → 2NaOH + H
2
по реакции n(NaOH):n(Na)=1:1
n(Na)=20г/23г/моль=0,87 моль
m(NaOH)=0,87 моль*40 г/моль=34,8 грамма
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Answers & Comments
по реакции n(NaOH):n(Na)=1:1
n(Na)=20г/23г/моль=0,87 моль
m(NaOH)=0,87 моль*40 г/моль=34,8 грамма