27.31 mg of NH4Cl in 1.99 ✕ 10-2 L of solution
cation ?
And
Anion ?
(Molarity)
I found the MW to be 62.48 and I converted Mg to 0.02731g idk what's wrong
What do you want?
The cation is NH4^+ and the anion is Cl^-. Probably that isn't what you want. And you want the molarity of what? the cation? the anion? NH4Cl?
The molarity of NH4Cl is mols/L.
mols = grams/molar mass
Then mols/0.0199 = ?M