You are given two unlabeled gas tanks. One contains oxygen, the other contains H

Question

You are given two unlabeled gas tanks. One contains oxygen, the other contains Hydrogen. Besides filling a balloon with each to see which one floats, describe another simple experiment to determine which tank contains oxygen and which contains H_2. You have two unlabeled Erlenmeyer flasks. One contains sea water, the other contains distilled water Other than tasting, describe a simple experiment to determine which flask contains seawater and which contains distilled water. Explain what you will see with material from each flask. You have two unlabeled test tubes. One contains phenolphthalein indicator solution, the other tube contains distilled water Describe a simple experiment to determine which test tube contains the phenolphthalein and which contains the pure water. Explain what you will see with each one. You have two unlabeled glass containers. One contains copper sulfate hydrate CuSO_4-5H_2O, the other contains CuSO_4 anhydrate. Describe in detail how you could determine which solid is in which container. Explain what you will see with each one.

Explanation / Answer

Q14.

if one tank has O2, the other H2,

Add More O2, leak H2 gas, then add a spark, if there is vapor formation, that is H2 + O2 = H2O, then this is H2

if there is no reaction, then this must have been O2 gas, since O2 + O2 will not react

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