A colloidal solution of gold nanoparticles is prepared by reduction of . Which of the following methods is MOST EFFECTIVE for purifying this solution from excess reactants and small ionic byproducts?
Filtration
Centrifugation
Dialysis
Evaporation
Related Questions
A mixture of sand, salt, and iron filings can be separated using a combination of methods. Which sequence is the most efficient?
Dissolution, filtration, evaporation, magnetic separation
Filtration, dissolution, evaporation, magnetic separation
Magnetic separation, dissolution, filtration, evaporation
Evaporation, filtration, dissolution, magnetic separation
Crystallization is a purification technique based on the principle of:
Difference in solubility of the compound and impurities at different temperatures
Difference in melting points of the compound and impurities
Difference in boiling points of the compound and impurities
Difference in densities of the compound and impurities
