All Questions
Tagged with ionic-compounds home-experiment
11
questions
-1
votes
1
answer
787
views
Safely removing sodium hypochlorite crystals from hard-to-reach surfaces
I have a small bathing whirlpool which wasn’t used for over ten years. It is built into the ground and I cannot reach the disinfectant container to replace it with a new one. I can access the fill-...
- 9
0
votes
1
answer
597
views
Impurities in household baking soda
For a long time, I have been using store bought baking soda (with sodium bicarbonate as the sole ingredient listed) as the sodium bicarbonate in my (qualitative) home experiments, but recently I ...
- 47
1
vote
1
answer
220
views
making patinas for copper
Copper nitrate, calcium carbonate and ammonium chloride mixed will patina copper green. I need to know
If calcium carbonate should be a heavy powder or a reagent.
If calcium chloride is a dehydrate ...
- 11
1
vote
1
answer
394
views
Unknown salt formed from electrolysis of urine
I am not sure what I was expecting to happen with this but I created a circuit to electrolyze various household liquids. My electrodes are copper — or at least claim to be, I think they might just be ...
- 957
7
votes
3
answers
2k
views
In my homemade electrolysis setup, only the negative end bubbles?
I've created an electrolysis setup by connecting a $6~\mathrm{V}$ battery to a cup filled with saline water via pencils; I am confused as to why only the negative pencil bubbles though. After running ...
- 173
7
votes
3
answers
573
views
How to measure saturated salinity and mineral levels for flaked sea salt?
I am a sea salt enthusiast looking to make the perfect flakey sea salt. I start with sea water and boil it down to a thick brine. Then with less heat I reduce the brine more slowly and inverted salt ...
- 71
3
votes
2
answers
5k
views
Why did my iron nails not dissolve in hydrochloric acid?
I was trying to dissolve iron metal in HCl to make iron chloride, but ran into some problems. I'll give a brief background of my experiment. I took iron nails and put them in a container filled with ...
- 1,167
4
votes
3
answers
12k
views
Problems with creating sodium hydroxide from sodium (hydrogen) carbonate
If sodium hydrogen carbonate (baking soda, $\ce{NaHCO3}$) is heated to greater than $50~\mathrm{^\circ C}$, it will release carbon dioxide and water to form sodium carbonate:
$$\ce{2NaHCO3 -> ...
- 1,494
2
votes
2
answers
2k
views
Potassium Alum Crystals
This is a question regarding the crystallization of $\ce{KAl(SO4)2 . 12 H2O}$. I have an idea of what to do (I'll explain later in the explanation), but I would like to hear other suggestions encase ...
6
votes
1
answer
5k
views
Citric acid chelates calcium carbonate more than ethanoic acid, why does this result in a faster rate of reaction?
I performed an experiment using egg shells (calcium carbonate) to represent teeth and reacted the calcium carbonate with acids. When measuring the rate of reaction citric acid had a higher rate of ...
- 149
1
vote
0
answers
761
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How to clean copper(II) sulfate crystals from sulfuric acid?
I am going to prepare copper(II) sulfate by electrolysis with sulfuric acid for crystal growing.
How would I separate the copper(II) sulfate from the sulfuric acid left over from the electrolysis ...
- 121