Answer to Question #63363 in General Chemistry for yousra

Question

Use two concentration tables to calculate the concentrations of the species present in a 0.386 M solution of NaNO2.






[NO2-]
M






[H3O+]
M







[OH-]
M

[HNO2]
M

Answer 1

The concentration of NO2- is the same as the concentration of NaNO2 0.386 M.
The concentration of HNO2 is 4.2*10-7 M
The concentration of OH- is 4.2*10-7 M
The concentration of H3O+ is 2.5*10-8 M