Determining percentage purity of NaCl contaminated with sodium hydrogen carbonate?
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Chemistry.....ouch!!!  When teaching the method for converting percentage composition to an empirical formula, I have devised the following rhyme: \n\nPercent to mass\nMass to mole\nDivide by small\nMultiply 'til whole
95964
because it has NaCl in it
311730
I think you should keep it simple yet smart. First get a piece of pure elemental Sodium and then let it drop on warm water. Afterwards explain how the chemical reaction released Sodium Oxide and Hydrogen Gas.
439952
You can find in "Chemical Engineer's Handbook", from Perry-Chilton, graphics for density of water + NaCl solution vs. %w/w of NaCl. The NaCl concentration is 3.5%
949292
NaCl - sodium chloride
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NaOH + HCl ---> NaCl + H20
787726
It will reach equilibrium and never turn to all sodium carbonate.  CO2 and water will be absorbed from the air setting up a carbonate equilibrium with sodium hydroxide.  For all time, if a "closed" system, it will be mostly sodium hydroxide.
811655
If by 'undissolved' you mean why are some salts insoluble in water, then I think we are in business.\n\nIn order for a salt to be soluble it has to be energetically favorable for the ions to separate. This requires a negative gibbs free energy. G = H - TS So you have to find the H and S values for the solid to aqueous solution and see if G will be negative for a given temperature.\n\nA method I recently learned to make insolube salts more soluble is to add other ions to the water...but you have to be careful to not add a common ion...or Le Chantliear will come into play.
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The balanced solution is nothing else than a special physiological salt solution.  Near the sodium chloride it generally contains CaCl2, KCl, potassium and sodium-phosphate, Mg-salt(chloride or sulphate), sodium hidrocarbonate.\nAs additional component it may contains some glucose and/or phenol red as a pH indicator.
825204
a. Insoluble, chloride salts are insoluble with Cu(I), Ag, Hg2, Pb cations.\nb. Insoluble, because of Cu presence, the only common soluble base is NaOH, KOH, NH4OH, Ba(OH)2, Ca(OH)2, Sr(OH)2.\nc. Soluble, because of Li presence\nd. Insoluble, sulphate salts are insoluble with Ba, Ca, Sr, Pb cations.\ne. Insoluble, all carbonate salts are insoluble in water, except when the cation is Na, K or NH4.\n\npeace\nvixklen
784949
Additional information is needed.  The mixture could contain one atom of Potassium and the rest Sodium or the reverse.\n\nThe total mass of the sample does not tell you anything about the relative mix.
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Depends on your salt substitute, but the answer you're looking for is probably Cl- as your salt substitute probably contains KCl.
640052
looks like potassium chloride, Magnesium chloride, Sodium Nitrate, and Water... Is this what you are looking for?
612146
Some info at http://www.aquapurefilters.com/contaminates/165/toc.html and at http://www.stateoftheart.it/toc-2.htm
358644
Go to the local grocery store, and look for "washing soda" in the cleaning supplies section.  If you look at the fine print on the box/bag, it may say "Sodium Carbonate" or "Sodium Carbonate Decahydrate" \n\nHave fun, and good luck with the experiment!
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Acid used is ethanoic acid, hence the salt produced is ethanoate (in this case, the exact salt is sodium ethanoate CH3COONa). Since this is an acid-base titration, products are salt and water.\nCH3COOH + NaOH --> CH3COONa + H2O
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1. sodium hypochlorite\n2. hydrogen chloride\n3. concentrated sulphuric acid\n4. oxidising it, for example with potassium manganate(VII).\n\nIf you've done the other 96, well done!