0.002872 moles.
thats 3+
HNO2 is a weak acid.
ka=[H+][NO2_]/[HNO2]
HNO2 is nitrous acid, a weak acid.
ka=[H+][NO2_]/[HNO2]
Ka= [H+][NO2-] [HNO2]
Neutralization: HNO3 + NaOH -> NaNO3 + H2O Decomposition by heating: NaNO3 -> NaNO2 + 1/2 O2 Preparation of HNO2: NaNO2 + HCl -> HNO2 + NaCl
HNO2 is nitrous acid. It is not to be confused with nitric acid, which is HNO3
multiply the number of moles by Avogadroa number
There is no direction in number of moles, so it is scalar.
The number of moles 9,92.10e-5.
36.9 moles.