February 27, 2017

Homework Help: chemistry

Posted by Brad on Monday, January 12, 2009 at 6:16pm.

1) To prepare a 200 mL of aqueous stock solution X, you transferred 50 mL of a known concentration solution into a 200 mL volumetric flask. If you realize that the volumetric flask was contaminated with water droplets after you cleanly transferred the known concentration solution. The 200 mL solution X will have a

_________(higher, lower or same) concentration than(as) you originally calculated.

2) You transfer a 2M stock solution of Y into a container using a slightly wet pipet containing water drops. The concentration of the transferred solution Y has a

___________(lower, higher, or same) concentration than(as) 2M

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