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pHoxidesLab - 3 Record the results in a table showing the...

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Testing the pH of oxides from http://www.chemsoc.org/networks/learnnet/Word_files/Kev21-30.doc Introduction In this experiment the pH of various oxides is tested. What to record Name of oxide Color of Universal Indicator pH value Acid, alkali or neutral Nitrogen oxide Sodium oxide Potassium oxide Phosphorus(V) oxide Calcium oxide What to do 1. Using separate test-tubes, collect a sample (about 2 cm 3 ) of each oxide in water. 2. Add three drops of Universal Indicator solution to each sample.
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Unformatted text preview: 3. Record the results in a table showing the oxide, the colour of the Universal Indicator, the pH and whether the oxide is acidic, alkaline or neutral in water. Safety Wear eye protection Questions 1. Which compounds in the table are metal oxides? 2. Comment on your results for the metal oxides? 3. Some metal oxides do not react with water. Predict the pH of these compounds. Home...
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