A- a water soluble salt forms a precipitant during Group 3 analysis. An acidic solution of this precipitant and NaBiO3 yields a pinkish color. This same salt has no reaction to concentrated H2SO4 or AgNO3, what is the chemical formula for this salt?
B- a brown colored salt contains a cation from group 3, it has no reaction with concentrated H2SO4 and produces a soluble product with acidic AgNO3 and acidic BaCl2, this salt is not water soluble. What is the chemical formula for this salt?
To find the chemical formulas for the given salts, we need to analyze the information provided.
For salt A:
1. It is a water-soluble salt that forms a precipitant during Group 3 analysis.
2. An acidic solution of this precipitant and NaBiO3 yields a pinkish color.
3. It has no reaction with concentrated H2SO4 or AgNO3.
Based on this information, we can determine the possible components of the salt:
1. Since it forms a precipitant during Group 3 analysis, it contains a Group 3 cation.
2. The reaction with NaBiO3 suggests the presence of a reducing agent, which could possibly be a nitrite ion (NO2-) or a sulfite ion (SO3^2-).
3. The lack of reaction with H2SO4 and AgNO3 suggests that it does not contain anions that can react with these reagents.
Considering these points, the possible chemical formula for salt A could be a combination of a Group 3 cation and a nitrite or sulfite anion. One example could be Al(NO2)3 or Al(SO3)3. However, further analysis may be needed to confirm the specific formula.
For salt B:
1. It is a brown-colored salt containing a cation from Group 3.
2. It has no reaction with concentrated H2SO4.
3. It produces a soluble product with acidic AgNO3 and acidic BaCl2.
4. It is not water-soluble.
Based on this information, we can deduce the following:
1. It contains a Group 3 cation.
2. It does not react with concentrated H2SO4, indicating that it may not contain sulfate ions (SO4^2-) or any other reactive anion.
3. It produces soluble products with acidic AgNO3 and acidic BaCl2, suggesting the presence of anions that can form soluble salts with these reagents.
Considering these criteria, a possible chemical formula for salt B could be a combination of a Group 3 cation and an anion that forms soluble salts with AgNO3 and BaCl2, such as Al3(PO4)2 or Al3(CO3)2. However, further analysis may be required to confirm the specific formula.