Build a Better Battery
Lab Prep Instructions
GENERAL INFORMATION
Experiment Day/Date:
Instructions: Write any calculations in the space provided, and check with the lab instructor if you have any
questions. Check off each item as you prepare it.
Quantity: Amounts indicated are for all sections unless indicated (amounts have been over-estimated to
guarantee extra is available). Assume 4 groups for each solution that says “per group”.
SOLUTIONS
Solvent for all solutions: Milli-Q water (especially non-chlorinated compounds)
250 mL of 1 M KNO3 (potassium nitrate)
1L 

 250 mL 1 M KNO3 
  _____ L 1 M KNO3 available  _____L 1 M KNO3 needed
1000mL 

-please round volume of 1 M KNO3 needed to match the nearest volumetric flask volume
available (i.e. to the nearest 500mL or 1L). Amount of 1 M KNO3 to prepare:________L KNO3
1.0 M KNO3 101.1 g KNO3
_______ L volumetri c flask 

 _______ g KNO3 in ______L volumetri c flask
1L
mol KNO3
10 mL of 0.10 M FeCl3 (iron (III) chloride)
-include 1 mL micropipet & tips and small beaker for student dispensing
-acidify with HNO3
1L 

10 mL 0.10 M FeCl3 
  _____ L 0.10 M FeCl3 available  _____L 0.10 M FeCl3 needed
1000mL 

-please round volume of 0.10 M FeCl3 needed to match the nearest volumetric flask volume
available (i.e. to the nearest 500mL or 1L). Amount of 0.10 M FeCl3 to prepare:________L FeCl3
0.1 mol FeCl3 270.3 g FeCl3  6H 2 O
_______ L volumetri c flask 

 _______ g FeCl3  6H 2 O in ______L vol. flask
1L
mol FeCl3  6H 2 O
10 mL of 18 M H2SO4 (sulfuric acid)
-include 1 mL pipet & pump and small beaker for student dispensing
-Since this is concentrated H2SO4, the acid should be dispensed in the hood.
1L


10 mL 18 M H 2 SO 4 
  _____ L 18 M H 2 SO 4 available  _____L 18 M H 2 SO 4 needed
1000mL


-please round volume of 18 M H2SO4 needed to match the nearest volumetric flask volume
available (i.e. to the nearest 500mL or 1L). Amount of 18 M H2SO4 to prepare:________L H2SO4
10 mL of 0.1 M HNO3 (nitric acid)
-include 1 mL micropipet & tips and small beaker for student dispensing
1L


10 mL 0.1 M HNO 3 
  _____ L 0.1 M HNO 3 available  _____L 0.1 M HNO 3 needed
1000mL 

-please round volume of 0.1 M HNO3 needed to match the nearest volumetric flask volume
available (i.e. to the nearest 500mL or 1L). Amount of 0.1 M HNO3 to prepare:________L HNO3
_______ mL 0.1 M HNO 3 
0.1 M HNO 3
 ______ mL ___M HNO 3 to prepare _______mL 0.1 M HNO 3
_____M HNO 3
50 mL of 1.0 M HNO3 (nitric acid)
-This amount should be enough for ONE GROUP
-If you are diluting from concentrated HNO3 perform this dilution in the hood in an ice bath. It is helpful if
this reaction is performed in a large Erlenmeyer flask, with the acid added to the water, and then transferred
to the volumetric and filled to the line when it has cooled to room temperature. Be sure you add less water to
the Erlenmeyer than the total amount needed to fill the volumetric.
 50 mL 1.0 M HNO 3

1L


 _____ groups   _____ L 1.0 M HNO 3 available  _____L 1.0 M HNO 3 needed
group
1000mL


-please round volume of 1.0 M HNO3 needed to match the nearest volumetric flask volume
available (i.e. to the nearest 500mL or 1L). Amount of 1.0 M HNO3 to prepare:________L HNO3
1 M HNO 3
_______ mL 1.0 M HNO 3 
 ______ mL ___M HNO 3 to prepare _______mL 1M HNO 3
_____M HNO 3
50 mL of 0.1 M (NH4)2Fe(SO4)2 (ammonium iron(II) sulfate)
-This amount should be enough for ONE GROUP
-acidify with H2SO4
 50 mL 0.1 M (NH 4 ) 2 Fe(SO 4 ) 2

1L


 _____ groups   _____ L 0.1M (NH 4 ) 2 Fe(SO 4 ) 2 available 
group
1000mL


_____L 0.1 M (NH 4 ) 2 Fe(SO 4 ) 2 needed
-please round volume of 0.1 M (NH4)2Fe(SO4)2 needed to match the nearest volumetric flask
volume available (i.e. to the nearest 500mL or 1L). Amount of 0.1 M (NH4)2Fe(SO4)2 to prepare:________L
(NH4)2Fe(SO4)2
_______ L volumetri c flask 
0.1 mol (NH 4 ) 2 Fe(SO 4 ) 2
392.14 g (NH 4 ) 2 Fe(SO 4 ) 2

 _______ g (NH 4 ) 2 Fe(SO 4 ) 2
1L
mol (NH 4 ) 2 Fe(SO 4 ) 2
in ______L volumetri c flask
50 mL of 1.0 M Cu(NO3)2 (copper (II) nitrate)
-This amount should be enough for ONE GROUP
 50 mL 0.1M Cu(NO 3 ) 2

1L


 _____ groups   _____ L 0.1M Cu(NO 3 ) 2 available 
group
1000mL


_____L 0.1 M Cu(NO 3 ) 2 needed
-please round volume of 1.0 M Cu(NO3)2 needed to match the nearest volumetric flask volume
available (i.e. to the nearest 500mL or 1L). Amount of 1.0 M Cu(NO3)2 to prepare:________L Cu(NO3)2
1 mol Cu(NO 3 ) 2 232.59 g Cu(NO 3 ) 2
_______ L volumetri c flask 

 _______ g Cu(NO 3 ) 2 in
1L
mol Cu(NO 3 ) 2
______L volumetri c flask
50 mL of 0.1 M AgNO3 (silver nitrate)
-This amount should be enough for ONE GROUP
-caution: avoid direct contact, as it will stain skin brown
-put in a dark, sealed, bottle with label
 50 mL 0.1M AgNO 3

1L


 ______ groups   ______ L 0.1M AgNO 3 available  _______L 0.1 M AgNO 3 needed
groups
1000mL


-please round volume of 0.1M AgNO3 needed to match the nearest volumetric flask volume
available (i.e. to the nearest 500mL or 1L). Amount of 0.1M AgNO3 to prepare:________L AgNO3
2
_______ L volumetri c flask 
0.1 mol AgNO 3 169.89 g AgNO 3

 _______ g AgNO 3 in ______L volumetri c flask
1L
mol AgNO 3
CHEMICALS
Solid quinhydrone (small amount in vial)
EQUIPMENT & GLASSWARE
In Lab Bins: (total of 8 bins needed) String for salt
bridge (1)
100-mL volumetric flasks (2)
25-ml volumetric flask (1)
250 mL beaker (2)
Micropipetes
Stirring rod
100 ml beaker (2)
In Dana 201:
□ pH meters in mV mode(6)
□ cable connectors and reference electrodes for each meter
□ MilliQ water at each station
□ pipette tips at each station
Ag wire (2)
Cu wire (2)
Graphite rod (3)
WASTE DISPOSAL CONTAINERS
Building: Dana
Room #: 201
Waste Accumulation Start Date: xx/xx/12
Date Container Filled: leave blank
Date moved to MAA: leave blank
Physical State(s): liquid
Chemical Waste Composition: potassium nitrate, iron (III) chloride, sulfuric acid, nitric acid, ammonium
iron(II) sulfate, copper (II) nitrate, silver nitrate, quinhydrone (<1%), water (~99%)
Hazards: toxic, corrosive, oxidizer
SPECIAL INSTRUCTIONS
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