The experiment was separation of the components of a mixture. I am trying to find the percentage recovery, when separating the mixture. The mixture that was used, was ammoinum chloride, sodium chloride and sand. The mixture was decanted twice with water. The NaCl was heated to evaporate the water. If the NaCl is not completely dried, how will it affect my percentage recovery?
2006-09-21 03:08:44 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
The NaCl should be completely dry when you weigh it to find the amount of NaCl recovered.
If the NaCl is still wet, the extra water on it will add to the mass of the NaCl when taking the measurement, giving you a erroneously high value for the mass of the recovered NaCl.
2006-09-21 03:51:54 · answer #1 · answered by mrjeffy321 7 · 0⤊ 0⤋
If NaCl is not dried completely it will weigh more. This will make it seem like you recovered more. So, the % will be up, despite the fact not all of your recovery is NaCl.
2006-09-21 18:54:20 · answer #2 · answered by science teacher 7 · 0⤊ 0⤋