Podcast
Questions and Answers
What is the role of ammonium salts in the formation of magnesium carbonate?
What is the role of ammonium salts in the formation of magnesium carbonate?
- They have no effect on the formation of magnesium carbonate
- They enhance the formation of magnesium carbonate
- They react with magnesium ions to form a different compound
- They prevent the formation of magnesium carbonate by shifting the equilibrium towards the formation of hydrogen carbonate ions (correct)
What is the precipitate formed when magnesium ions react with aqueous ammonia?
What is the precipitate formed when magnesium ions react with aqueous ammonia?
- Magnesium phosphate
- White gelatinous magnesium hydroxide (correct)
- Magnesium carbonate
- Basic magnesium carbonate
What is the purpose of removing ammonium ions from the mixture before testing for Na+, K+, and Mg2+?
What is the purpose of removing ammonium ions from the mixture before testing for Na+, K+, and Mg2+?
- To prevent interference with the precipitation of magnesium carbonate (correct)
- To decrease the pH of the solution
- To increase the concentration of magnesium ions
- To enhance the precipitation of magnesium hydroxide
What is the compound formed when magnesium ions react with sodium carbonate in the absence of ammonium salts?
What is the compound formed when magnesium ions react with sodium carbonate in the absence of ammonium salts?
What is the characteristic precipitate formed when magnesium ions react with sodium monohydrogen phosphate (disodium hydrogen phosphate) in an ammonia-ammonium chloride buffer?
What is the characteristic precipitate formed when magnesium ions react with sodium monohydrogen phosphate (disodium hydrogen phosphate) in an ammonia-ammonium chloride buffer?
What is the reaction that occurs when magnesium ions react with sodium monohydrogen phosphate in a neutral solution?
What is the reaction that occurs when magnesium ions react with sodium monohydrogen phosphate in a neutral solution?
What is the formula of the compound formed when magnesium ions react with sodium hydroxide?
What is the formula of the compound formed when magnesium ions react with sodium hydroxide?
What is the test used to detect magnesium ions?
What is the test used to detect magnesium ions?
What is the compound formed when magnesium ions react with sodium monohydrogen phosphate in a strongly alkaline solution?
What is the compound formed when magnesium ions react with sodium monohydrogen phosphate in a strongly alkaline solution?
What is the effect of ammonium salts on the formation of magnesium phosphate?
What is the effect of ammonium salts on the formation of magnesium phosphate?
