Дано
AlxOy
w(Al) = 53.8% = 0.538
w(O) = 46.2% = 0.462
Решение
w(Al) = xAr(Al) / (xAr(Al) + yAr(O)) = 27x / (27x + 16y) = 0.538
27x / (27x + 16y) = 0.538
27x = 0.538(27x + 16y)
27x = 14.526x + 8.608y
12.474x = 8.608y
1.5x = 1y
3x = 2y
x : y = 2 : 3
Al2O3
Ответ: Al2O3
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Answers & Comments
Дано
AlxOy
w(Al) = 53.8% = 0.538
w(O) = 46.2% = 0.462
Решение
w(Al) = xAr(Al) / (xAr(Al) + yAr(O)) = 27x / (27x + 16y) = 0.538
27x / (27x + 16y) = 0.538
27x = 0.538(27x + 16y)
27x = 14.526x + 8.608y
12.474x = 8.608y
1.5x = 1y
3x = 2y
x : y = 2 : 3
Al2O3
Ответ: Al2O3