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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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Whaley Whaley
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3 years ago
You have solutions of 0.200 M HNO2 and 0.200 M KNO2 (Ka for HNO2 = 4.00 × 10–4). A buffer of pH 3.000 is needed. What volumes of HNO2 and KNO2 are required to make 1 liter of buffered solution?


▸ 500 mL of each

▸ 286 mL HNO2; 714 mL KNO2


▸ 413 mL HNO2; 587 mL KNO2


▸ 714 mL HNO2; 286 mL KNO2


▸ 587 mL HNO2; 413 mL KNO2
Textbook 
Chemistry: An Atoms First Approach

Chemistry: An Atoms First Approach


Edition: 3rd
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ellaraienmellaraienm
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Whaley Author
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3 years ago
Helped a lot
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Thanks for your help!!
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