IB
IBO
Chemistry
May 2025
QP-202505-Chemistry-P1B(TZ3)-HL · Question 3
Question (excerpt):
12EP08 3. Cobalt(II) chloride has been used for many years as a qualitative test for water, H2O. Hydrated cobalt(II) chloride has the formula CoCl2• XH2O where X can be 1, 2, 6 or 9. A teacher set a t…
12EP08 3. Cobalt(II) chloride has been used for many years as a qualitative test for water, H2O. Hydrated cobalt(II) chloride has the formula CoCl2• XH2O where X can be 1, 2, 6 or 9. A teacher set a t…
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