of liquid droplets were left condensed on the inside flask walls, will the experimental molecular weight be higher, lower, or no different than the actual molecular weight?

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If 3.01g of the vapor of a volatile liquid is able to fill a 352-mL flask at 210C and 728mm Hg, what is the molecular weight of the liquid?

**Write answer in decimal form to one decimal place.**

It was important that the flask be completely dry before the unknown liquid was added so that water present would not vaporize when the flask was heated. A typical single drop of liquid water has a volume of approximately 0.05mL.

Assuming the density of water is 1.0g/mL, if 6 drops of water were left in the flask how many moles of water would this be?

** Write answer in decimal form to four decimal places.**

In the analysis of your commercial ammonia product, you used a dirty buret, and droplets of HCl
titrant stuck to the inside glass walls as the level of titrant went down during the titration, but you
wanted to get out of lab quick, so you went ahead and recorded the volumes and calculated your
NH4OH concentration as if things were fine. If you had taken the time to clean the buret first so that
the drops would not have stuck to the side walls of your buret and thereby done the titration properly,
the calculated NH4OH concentration would have been _____ (âhigher than,â âlower than,â or
âthe same asâ) the value obtained with the dirty buret? Briefly explain how you arrived at this
conclusion.

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of liquid droplets were left condensed on the inside flask walls, will the experimental molecular weight be higher, lower, or no different than the actual molecular weight?

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