Question

Consider these compounds:

A. Ag₂SO₄

B. Ag₂CO₃

C. FeS

D. BaCO₃

Complete the following statements by entering the letter corresponding to the correct compound.

Without doing any calculations it is possible to determine that zinc carbonate is more soluble than_______ , and zinc carbonate is less soluble than_______ . It is not possible to determine whether zinc carbonate is more or less soluble than ___________by simply comparing Ksp values.

Answer 1

Zinc carbonate is more soluble than Ag2CO3 and less soluble than BaCO3; its solubility compared to FeS cannot be determined without Ksp values.

Step-by-step explanation:

Without doing any calculations, it is possible to determine that zinc carbonate is more soluble than compound B (Ag2CO3), and zinc carbonate is less soluble than compound D (BaCO3). It is not possible to determine whether zinc carbonate is more or less soluble than compound C (FeS) by simply comparing Ksp values.

This is because the solubility can be affected by other factors such as complex ion formation, amphoteric behavior, and common ion effect, which are not reflected in Ksp values alone. To understand the solubility of these compounds, we refer to general solubility rules.

Most carbonates are frequently insoluble, especially those of Group II elements. However, the exact solubility trend can only be determined with a specific Ksp comparison which is not provided in this scenario.