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About CCA!
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| Manual Mixing in a Full Test Tube |
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| The demonstration on this page shows a technique that should not be used by undergraduate chemistry laboratory students. |
Discussion
There is too much solution in the test tube to sufficiently mix the two components by tapping the test tube. You should use a glass rod if the test tube is filled to near capacity. If the tube is completely full a glass rod will cause it to overflow, so a larger container will be needed.
Narrative
Be careful not to overfill the test tube, for mixing will be difficult and spilling will be likely.
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