Which of the following is correct with regard to hydrate?Select one:a.The numbers of mole of water in checmial formula of hydrates are always the same.b.Hydrate might have a different color from the anhydrous compound.c.Hydrate is a mixture of water and anhydrous salt.d.It is impossible to know the component of the anhydrous salt from the name of hydrate.
Question
Which of the following is correct with regard to hydrate?Select one:a.The numbers of mole of water in checmial formula of hydrates are always the same.b.Hydrate might have a different color from the anhydrous compound.c.Hydrate is a mixture of water and anhydrous salt.d.It is impossible to know the component of the anhydrous salt from the name of hydrate.
Solution
The correct answer is:
b. Hydrate might have a different color from the anhydrous compound.
Explanation:
a. The number of moles of water in the chemical formula of hydrates can vary. It is not always the same.
b. Hydrates can indeed have a different color from the anhydrous compound. This is because the water of hydration can affect the way light interacts with the compound, which can change its color.
c. A hydrate is not a mixture of water and anhydrous salt. It is a single, distinct compound that includes water in its structure.
d. It is often possible to know the components of the anhydrous salt from the name of the hydrate. The name of the hydrate usually includes the name of the anhydrous salt, followed by a prefix and "hydrate" to indicate the number of water molecules per formula unit.
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