1) in procedure B, if the crucible containing the unknown isnot heated long enou

Question

1) in procedure B, if the crucible containing the unknown isnot heated long enough, what will be the effect on the calculatedpercent water in the unknown( larger or smaller)?explain. 2) a student heats a crucible and sample of a hydrate asdirected in the procedure, the allows the sample to cool inthe crucible while sitting out on the lab bench than in adesicooler. what will happen to the mass of contents of thecrucible as its cools? explain why this happens. 1) in procedure B, if the crucible containing the unknown isnot heated long enough, what will be the effect on the calculatedpercent water in the unknown( larger or smaller)?explain. 2) a student heats a crucible and sample of a hydrate asdirected in the procedure, the allows the sample to cool inthe crucible while sitting out on the lab bench than in adesicooler. what will happen to the mass of contents of thecrucible as its cools? explain why this happens.

Explanation / Answer

1) the calculated percent water would be smaller because youassume that the unknown is is larger than it is; therefore, whenyou calculate the percent water it will be less. This is because bythe law of conversation no matter can be createdor destroyed. 2) It will become slightly wetter due to the fact that theroom is humid, and the dry unknown will slowly absorb some of thewater in the air.

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