Volume of liquid on a Penny Chemistry

background [prelab assignment (5 points) due at the beginning of lab]

design / describe an experiment to determine the maximum volume of a liquid (in mL) on a penny based on the below materials

purpose

determine and compare the maximum volume (in mL) of water versus isopropyl alcohol on the heads-side of a penny - using a conversion factor relating # mL & # drops of liquid.

materials

penny;  graduated cylinder

dropper bottle with water or isopropyl alcohol

methods, data, & analysis

student design

 

Content of lab report (25 points)

data analysis

data table

calculations to determine volume (in mL) of liquid on a penny 

statistics

conclusion: based on your data, is there a difference between the maximum volume of water versus alcohol on a penny ?

discussion: basis of conclusion based on chemical principles; e.g. IMF

 

resource

lab activity source (examples):  site 1  & site 2 [access 4 / 2009]