i've got this AP chem lab due tomorrow morning and i have no clue on the answer to this question. Please can you help me out? I would really appreciate it...
The lab was about precipitating silver (which become silver chloride after a few procedures) from a dime while copper chloride is filtered out. The silver chloride is in a hot crucible and here's the question...
If the crucible containg the silver chloride is not cool whent he mass is determined, with the calculated percent silver be too high or too low? Why?
p.s. i know you may not have very much of a clue of what im talking about but can you please give me an idea of what you think..because i have no clue...thankyou sooooooooo much!
2007-09-06 15:13:28 · 2 answers · asked by howyoudoin' 1 in Science & Mathematics ➔ Chemistry
I would think that if the crucible were hot, then some type of moisture would be retained in the system, sort of like sweat or condensation.
This would give a false high reading to the total mass, resulting in a false low reading for the %silver.
2007-09-06 15:26:42 · answer #1 · answered by reb1240 7 · 0⤊ 0⤋
too low. Because the crucible expands and has a higher density, so your saying the crubible is weighing more than it should. Sounds good to me
2007-09-06 22:25:49 · answer #2 · answered by w00189wr 4 · 0⤊ 1⤋