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Nitrous acid, HNO2, has a Ka of 7.1 x 10-4. What are (H3O+), (NO2-), and (OH-)...

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Chemistry

Nitrous acid, HNO2, has a Ka of 7.1 x 10-4. What are (H3O+),(NO2-), and (OH-) in 0.700M HNO2?

a)   (H3O+)=.........M…………………………answer a in M

b))   (NO2-)=..........M…………………………answer b in M

c)   (OH-)..............x 10 .......M...........(answer c   in scientific notation)

Answer & Explanation Solved by verified expert
3.6 Ratings (424 Votes)
a HNO2 dissociates as HNO2 H NO2 07 0 0 07x x x Ka HNO2HNO2 Ka xxcx Assuming x can be ignored as compared to c So above expression becomes Ka xxc so x sqrt    See Answer
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