When 27.8g of hydrated aluminium oxide, Al₂O₃.xH₂O, was heated to a constant mass, 20.6g of aluminium oxide was obtained. Determine the value of x (H=1, O=16, A=27)

Class: Form 3

Subject: Chemistry

Topic: Mole Concept

Lesson Summary

When 27.8g of hydrated aluminium oxide, Al₂O₃.xH₂O, was heated to a constant mass, 20.6g of aluminium oxide was obtained. Determine the value of x (H=1, O=16, A=27)

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