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darina256490
@darina256490
July 2022
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ПОМОГИТЕ ДОБРЫЕ И НЕ БЕЗРАЗЛИЧНЫЕ ЛЮДИ!!!!!!!!!!!!
НУЖНО РЕШИТЬ ЗАДАЧУ
Дано: Al(NO3)3
Знайти: w(Al)-? w(N)-? w(O)-?
БУДУ БЛАГОДАРНА!!!!!!!!!!!!!!!!!!!!!
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Innsmaut
M(Al(NO3)3) = 27 + 3*(14+16*3) = 213 г/моль
w(Al) = 27 : 213 * 100% = 12,676%
w(N) = 42 : 213 * 100% = 19,718%
w(O) = 144 : 213 * 100% = 67,6%
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Answers & Comments
w(Al) = 27 : 213 * 100% = 12,676%
w(N) = 42 : 213 * 100% = 19,718%
w(O) = 144 : 213 * 100% = 67,6%