CH-1982
Empirical and molecular formulae
Chemistry · Secondary 4 · Medium · Empirical and molecular formulae
A sample of hydrated copper(II) sulfate, CuSO₄·xH₂O, has a mass of 4.50 g. After heating to constant mass, the anhydrous CuSO₄ has a mass of 2.88 g.
What is the value of x?
[Mr: CuSO₄, 160; H₂O, 18]
What is the value of x?
[Mr: CuSO₄, 160; H₂O, 18]
- x = 3
- x = 4
- x = 5
- x = 6
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