Search found 5 matches
- Sun Feb 11, 2024 4:37 am
- Forum: Chemistry forum
- Topic: Chloroauric acid
- Replies: 6
- Views: 1620
Re: Chloroauric acid
You need about 355 ml solvent for the 0.7 g. But read how to make it What is aqua Regina it is 3 part HCl and one part HNO3 . https://en.m.wikipedia.org/wiki/Chloroauric_acid You have to do boiling until all HNO3 is evaporated as NO2, later dissolve the product again in conc. HCl to get 355 ml I ca...
- Sun Feb 11, 2024 4:25 am
- Forum: Chemistry forum
- Topic: colloidal silver
- Replies: 2
- Views: 1779
colloidal silver
How to prepare colloidal silver through chemical reduction, I have a
0.355L / 0.1M silver nitrate solution (AgNO3) and sodium citrate tribasic dihydrate (C6H5Na3O7·2H2O)???
Pls help me
0.355L / 0.1M silver nitrate solution (AgNO3) and sodium citrate tribasic dihydrate (C6H5Na3O7·2H2O)???
Pls help me
- Sun Feb 11, 2024 3:48 am
- Forum: Chemistry forum
- Topic: Chloroauric acid
- Replies: 6
- Views: 1620
Re: Chloroauric acid
I thing to figure out what is aqua Regina and the calculati8n you have to do by yourself. Calculate the moles of Gold you have then covert this to the volume of the acid to get 0,01 M Great, with the given molar mass of chloroauric acid (\(HAuCl_4\)) being 339.785 g/mol, let's recalculate the moles...
- Sun Feb 11, 2024 3:18 am
- Forum: Chemistry forum
- Topic: Chloroauric acid
- Replies: 6
- Views: 1620
- Sun Feb 11, 2024 1:37 am
- Forum: Chemistry forum
- Topic: Chloroauric acid
- Replies: 6
- Views: 1620
Chloroauric acid
How can chloroauric acid be prepared from a piece of gold weighing 0.7 grams? Then I want to prepare a 0.01 molar solution of chloroauric acid pls help me