How can I make Sodium Acetate using Baking Soda And Vinegar?
I want to do the Hot Ice Experiment, but when I combine Vinegar and Baking Soda together, stir it until the fuzz stops, add the mix to 500mL of boiling water and wait for it to boil off I do not get Sodium Acetate Crystals, I get a sticky, foul smelling sludge. I would greatly appreciate someone’s help on this because I have tried numerous times and cannot get it to work.
The key is not to have any remaining vinegar or baking soda. Vinegar is 5% acetic acid, and baking soda is pure sodium hydrogen carbonate. The reaction:
CH3COOH + NaHCO3 —> NaCH3CO2 + CO2 + H2O
All ratios are 1:1, so we want the same number of moles of acid as baking soda. 5% acetic acid correlates to about 0.90 M.
0.90 mol/L * L/1000 mL * 1 mL = 0.00090 mol acetic acid per mL of vinegar. We the same number of moles of baking soda to neutralize the acid. Sodium hydrogen carbonate has a molar mass of 84 g/mol, but we want .00090 mol:
84g/mol * .00090 mol = .0756 g
For every mililiter of vinegar, you want to add 0.0756 g, or to make it more practical, for a liter of vinegar try adding 75.6 grams of baking soda. Most people use way too much baking soda for the amount of vinegar used, and it turns nasty brown over the stove!
Remember:
0.0756 g of baking soda for every mL of vinegar
75.6 g of baking soda for every L of vinegar
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