Laboratory procedure errors
Explain how the errors in laboratory procedure would affect the calculated percent of sand. (decrease, increase, or remain the same) and why.
- a bit of mixture got stuck in the film can when you were pouring it into a beaker
- the mixture was dissolved in too little water; the residue on the filter paper was not washed completely
- The residue was not dried completely
- The mixture was dissolved with 30ml of water rather than 20ml of water