Answer:
Explanation:
Toe change the retention factor of a TLC analysis, you can change your solvent for a more or less polar one, depending on your analyte. You can use a mix of solvents too.
You can also change the your method to visualize the spots, you can use fluorescent compounds that can only be seen in black light, you can use Iodine, Bromine and so on.
An acid is a substance that donates hydrogen ions. Because of this, when an acid is dissolved in water, the balance between hydrogen ions and hydroxide ions is shifted. Now there are more hydrogen ions than hydroxide ions in the solution.
Answer:
47.01g/mol
Explanation:
The formula of Nitrous acid is HNO₂:
The formula mass of a compound gives the sum of the atomic masses of the elements that makes up a compound.
Atomic mass of H = 1.0079g/mol
N = 14.0067g/mol
O = 15.9994g/mol
Formula mass of HNO₂ = 1.0079 + 14.0067 + 2(15.9994)
= 1.0079 + 14.0067 +31.9988
= 47.01g/mol
"Electroplating is a process that uses an electric current to reduce dissolved metal cations so that they form a thin coherent metal coating on an electrode."
Answer:
nBACO3=m/M=9,83/197=0,05(mol) ->nHCl=0,05.2/1=0,1(mol) =>VHCl=n/CM=0,1/0,44=0,227(lít)
Explanation:
