Purpose:
To observe a chemical reaction and to use qualitative and quantitative evidence to identify this reaction from among four possibilities.
Hypothesis:
I think the result is going to produce water. I think this is going to happen because there is hydrogen and oxygen inNaHCO3.
Materials:
-Test tube clamp - 150 mm test tubes (2) - burner - retort stand - clay triangle - iron ring - crucible Procedure:
Part A: 1. Add 0.5 g of NaHCO3 (compared with a sample on display) to a test tube. 2. Obtain a test tube one-quarter filled with limewater 3. Heat the NaHCO3 gently for 2 min over a Bunsen burner, while holding the test tube of limewater as indicated in the following