Illustrated Guide to Home Chemistry Experiments

Chapter 7 Laboratory: Solubility and Solutions 131

Compound Formula Formula Weight nominal M volume Calculated MassActual MassActual M

magnesium sulfate _______.____ g/mol___.__ M 100 mL _______.____ g_______.____ g___.______ M

manganese(II) sulfate _______.____ g/mol___.__ M 100 mL _______.____ g_______.____ g___.______ M

nickel(II) nitrate _______.____ g/mol___.__ M 100 mL _______.____ g_______.____ g___.______ M

potassium bromide _______.____ g/mol___.__ M 100 mL _______.____ g_______.____ g___.______ M

potassium chromate _______.____ g/mol___.__ M 100 mL _______.____ g_______.____ g___.______ M

potassium ferrocyanide _______.____ g/mol___.__ M 100 mL _______.____ g_______.____ g___.______ M

potassium hydrogen tartrate _______.____ g/mol___.__ M 100 mL _______.____ g_______.____ g___.______ M

potassium iodide _______.____ g/mol___.__ M 100 mL _______.____ g_______.____ g___.______ M

potassium nitrate _______.____ g/mol___.__ M 100 mL _______.____ g_______.____ g___.______ M

potassium permanganate _______.____ g/mol___.__ M 100 mL _______.____ g_______.____ g___.______ M

potassium thiocyanate _______.____ g/mol___.__ M 100 mL _______.____ g_______.____ g___.______ M

silver nitrate _______.____ g/mol___.__ M 100 mL _______.____ g_______.____ g___.______ M

sodium acetate _______.____ g/mol___.__ M 100 mL _______.____ g_______.____ g___.______ M

sodium bicarbonate _______.____ g/mol___.__ M 100 mL _______.____ g_______.____ g___.______ M

sodium bisulfite _______.____ g/mol___.__ M 100 mL _______.____ g_______.____ g___.______ M

sodium borate _______.____ g/mol___.__ M 100 mL _______.____ g_______.____ g___.______ M

sodium carbonate _______.____ g/mol___.__ M 100 mL _______.____ g_______.____ g___.______ M

sodium hydroxide _______.____ g/mol___.__ M 100 mL _______.____ g_______.____ g___.______ M

sodium nitrite _______.____ g/mol___.__ M 100 mL _______.____ g_______.____ g___.______ M

sodium phosphate, tribasic _______.____ g/mol___.__ M 100 mL _______.____ g_______.____ g___.______ M

sodium sulfate _______.____ g/mol___.__ M 100 mL _______.____ g_______.____ g___.______ M

sodium sulfite _______.____ g/mol___.__ M 100 mL _______.____ g_______.____ g___.______ M

sodium thiosulfate _______.____ g/mol___.__ M 100 mL _______.____ g_______.____ g___.______ M

strontium nitrate _______.____ g/mol___.__ M 100 mL _______.____ g_______.____ g___.______ M

zinc nitrate _______.____ g/mol___.__ M 100 mL _______.____ g_______.____ g___.______ M

LBELSA THE EASy wAy

Precalculated and preformatted labels for each of the

stock and working solutions I use in my lab can be

downloaded from http://www.homechemlab.com in Microsoft

Word and OpenOffice.org formats. You can save several

hours of calculation and typing by downloading these labels.

Note, however, that the solute masses on the labels

assume you are using 100% pure anhydrous salts, so if

you use hydrated salts or salts of lesser purity, you’ll need

to adjust the actual masses of the solutes. For example,

the label for copper (II) sulfate specifies 159.6 mg/mL of

solute, which is correct for anhydrous copper (II) sulfate of

100% purity. I actually used 99% pure copper (II) sulfate

pentahydrate, which meant that I needed 25.22 g of that

salt to make up 100 mL of nominal 1.00 M copper (II)

sulfate solution. When I weighed out the salt, I actually

ended up with 25.34 g, which meant that my final solution

was 1.005 M.

TEHEE H S C mICALS ARE pARTICULARLy USEfUL

To kEEp oN HANd:

• sium bromide potas


• potassium iodide


• potassium permanganate
  
  
  • silver nitrate
  
  
  • sodium carbonate
  
  
  • sodium hydroxide