M(Al₂O₃)= 27·2 + 16·3 = 102
w(Al) = 27·2\102 = 0.5294, или 52,94%ответ: 52,94%
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Al₂O₃
найти:w(Al)
решение:
M(Al₂O₃)= 27·2 + 16·3 = 102
w(Al) = 27·2\102 = 0.5294, или 52,94%
ответ: 52,94%
Verified answer
W=27*3/27*2+16*3=53%....................................