Al2O3
w(O) - ?
w(Al) - ?Решение:
1) w(O) = 48 / 102 * 100% = 47,05%
2) w(Al) = 54 / 102 * 100% = 52,94%
Ответ: 52,94%, 47,05%
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Al2O3
w(O) - ?
w(Al) - ?
Решение:
1) w(O) = 48 / 102 * 100% = 47,05%
2) w(Al) = 54 / 102 * 100% = 52,94%
Ответ: 52,94%, 47,05%