Add more unknown to the graduated cylinder until you have approximately $9ml($between $9-10ml)$ of unknown. Weigh. Record the exact volume and weight under "Run $2".$

DISPOSAL: Dispose $($after your calculations have been instructor approved on your report sheet$)$ the unknown liquid in the waste container labelled "Waste unknown liquid".

DATA:

Unknown Number$\_$

$\backslash$table$[[,$RUN $1,$RUN $2],[$Volume of unknown,,$],[\backslash$table$[[$Mass of graduate cylinder$],[$plus unknown$]],,]]$

Did you record the correct units and number of sig figs in your measurements?

CALCULATIONS:

XCalculate the mass of the unknown for both runs, using the weight of the empty graduated cylinder from part $A.$

Calculate the density for both runs..

Calculate an average of the two runs on the next page.

$\backslash$table$[[,$Run $1($show work in boxes$),$Run $2],[$Mass of unknown,,$],[\backslash$table$[[$Density of$],[$unknown$]],,]]$