Question

The crucible is handled with oily fingers after its mass measurement but before the 3 gram sample of the hydrated salt is measured. Subsequently, in part B.1, the oil from the fingers is burned off. Will the percent water in the hydrated salt be reported as being too high, too low, or unaffected? Explain.

i think its unaffected. but i don't know if I'm right, and I don't know how to exactly explain it.

Answer 1

And I read this last night and couldn't figure out exactly what was going on. I just don't know the procedure you did.