mad it should work with byproducts so u filtered it cool ur a genius! but its much cheaper to buy it. i no this is only to explore science, so its pretty good :)
Great video, but I admit to preferring the ones with crazed survivalist rednecks trying to make lye with animal fat and a campfire. They're far more entertaining. ;)
Calcium hydroxide solubility in water is 0.189 g/100 mL, so how the heck are you getting it to react with the sodium carbonate? Don't both reactants need to be dissolved in order to react? I tried to do a larger scale of this (37g Ca(OH)2 with 53g Na2CO3), evaporated the filtrate, and all I got was a bunch of unreacted sodium carbonate (which is also basic and would produce the same effect on your paper).
I got this experiment from a kit. According to the reaction NaOH is produced. How much water did you use in the reaction. Maybe using more water to dissolve all the chemicals could help react all the Ca(OH)2 and Na2CO3.
All you really need is dilute solutions of both chemicals. As long as all of the reactants are dissolved initially, the only solid you'll get is the precipitate of insoluble calcium carbonate which can then be filtered off.
why would you want to do this, sodium hydroxide is much cheaper and MUCH eiser to come by than calcum hydroxide if you realy need sodium hydroxide, might i suggest you buy it.
here is what is actiually happening in the chemistry (i think):
you are reacting two chemicals (Na2CO3 and CaOH) to make CaCO3 and 2NaOH. CaCO3 is insoluble in water therefore comes out of the reaction as a percipitate and does not go through the filter paper. anyone wants to add anything to my explanation?
To be posh, a double-decomposition reaction is observed between the Sodium Carbonate and Calcium Hydroxide, and, yes, because of it's insolubilty in water at RTP, the Calcium Carbonate by-product precipitates out leaving the NaOH in solution.
@AHW214 I was thinking about replacement of the Na2CO3 by a baking soda NaHCO3 and instead of calcium hydroxide, i would use copper hydroxide. Is the equation right ? 2NaHCO3+Cu(OH)2 --> 2NaOH+CuCO3+CO2+H2O
omg is thtchem c 3000 science kit if so tell me if it's 3000 or 2000
sk8rcreator 2 months ago
Comment removed
BellaMilk 4 months ago
mad it should work with byproducts so u filtered it cool ur a genius! but its much cheaper to buy it. i no this is only to explore science, so its pretty good :)
Thedude321ful 10 months ago
just got a 5 pound container of crystalized koh for $20 at the hardware store.
Use it for electrolyte in my hydrogen reactor :-)
Me102288 11 months ago
just got a 5 pound container of crystalized koh for $20 at the hardware store.
Use it for electrolyte is my hydrogen reactor :-)
Me102288 11 months ago
Great video, but I admit to preferring the ones with crazed survivalist rednecks trying to make lye with animal fat and a campfire. They're far more entertaining. ;)
petrus4 1 year ago
Calcium hydroxide solubility in water is 0.189 g/100 mL, so how the heck are you getting it to react with the sodium carbonate? Don't both reactants need to be dissolved in order to react? I tried to do a larger scale of this (37g Ca(OH)2 with 53g Na2CO3), evaporated the filtrate, and all I got was a bunch of unreacted sodium carbonate (which is also basic and would produce the same effect on your paper).
Lorentz5 1 year ago
@Lorentz5
I got this experiment from a kit. According to the reaction NaOH is produced. How much water did you use in the reaction. Maybe using more water to dissolve all the chemicals could help react all the Ca(OH)2 and Na2CO3.
AHW214 1 year ago
@AHW214
All you really need is dilute solutions of both chemicals. As long as all of the reactants are dissolved initially, the only solid you'll get is the precipitate of insoluble calcium carbonate which can then be filtered off.
98JMA 5 months ago
why would you want to do this, sodium hydroxide is much cheaper and MUCH eiser to come by than calcum hydroxide if you realy need sodium hydroxide, might i suggest you buy it.
mikeysgame 1 year ago
@mikeysgame
I'm doing this for the science.
AHW214 1 year ago 5
@mikeysgame where do you buy it
?
triksin3395 1 year ago
@mikeysgame sodium Hydroxide can also be hard to find, depending where you live
labmaster49 1 year ago
Finaly You Do Some thing With Corrosive Chemicals.WooHoo!
TheScienceTestTV 1 year ago
here is what is actiually happening in the chemistry (i think):
you are reacting two chemicals (Na2CO3 and CaOH) to make CaCO3 and 2NaOH. CaCO3 is insoluble in water therefore comes out of the reaction as a percipitate and does not go through the filter paper. anyone wants to add anything to my explanation?
jbohbot1 1 year ago
@jbohbot1
I'm pretty sure that's right. Here's an equation:
Na2CO3+Ca(OH)2=2NaOH+CaCO3
AHW214 1 year ago 2
@AHW214
To be posh, a double-decomposition reaction is observed between the Sodium Carbonate and Calcium Hydroxide, and, yes, because of it's insolubilty in water at RTP, the Calcium Carbonate by-product precipitates out leaving the NaOH in solution.
98JMA 1 year ago
@AHW214 I was thinking about replacement of the Na2CO3 by a baking soda NaHCO3 and instead of calcium hydroxide, i would use copper hydroxide. Is the equation right ? 2NaHCO3+Cu(OH)2 --> 2NaOH+CuCO3+CO2+H2O
ChemExperimentalist 1 month ago
funny u would post this now i was thinking abt doing this
hobomnky 1 year ago