In a reaction, 34.0 g of chromium(III) oxide reacts with 12.1 g of aluminum to produce chromium and aluminum oxide. If 23.3 g of chromium is produced, what mass of aluminum oxide is produced?
Lab 3: Mixtures and Solutions Pre‐lab Questions 1. Name two homogeneous mixtures and two heterogeneous mixtures that you come across daily. 2. Explain how you would separate a solid mixture of sand and salt using any of the methods mentioned above. Experiment: Separation of a Mixture © eScience Labs, 2013 Lab 3: Mixtures and Solutions A large amount of aspirin will dissolve in hot water, but very little (or none at all) will dissolve in cold water. The other ingredients in a safety‐coated aspirin pill are soluble in both hot and cold water. We can use this solubility difference to se