Which of the following would cause the percent ionization of HNO2 to decrease? A: addition of...
Which of the following would cause the percent ionization of HNO2 to decrease? A: addition of NaCl B: addition of NaNO2 C: addition of HCl D: diluting with more water.
Homework Answers
Common ion effect describes the suppressing effect on ionisation of an electrolyte when other electrolyte is added which shares a common ion.
Common ion effect works using Le Chaterlier's principle which states that if a dynamic equilibrium is distributed by changing the conditions the position of equilibrium shifts in such a way to counteract the change.
B. Addition of NaNO2 will decrease the percent ionisation of HNO2.
As the concentration of NO2- will increase to decrease the concentration of NO2- the position of equilibrium will shift towards the left i.e towards HNO2.
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(YES/NO) (ADDED ACID/ADDED BASE)
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