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If you get this question right i will rate you a thumps up , if not i will rate you a thumbs down. show work too When in
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A chemistry graduate student is given 250. mL of a 0.50M nitrous acid (HNO₂) solution. Nitrous acid is a weak acid with K₁=4.5 × 10. What mass of KNO₂ should the student dissolve in the HNO₂ solution to turn it into a buffer with pH = 2.91? You may assume that the volume of the solution doesn't change when the KNO₂ is dissolved in it. Be sure your answer has a unit symbol, and round it to 2 significant digits. 8 x10
A chemistry graduate student is given 250. mL of a 0.50M nitrous acid (HNO₂) solution. Nitrous acid is a weak acid with K₁=4.5 × 10. What mass of KNO₂ should the student dissolve in the HNO₂ solution to turn it into a buffer with pH = 2.91? You may assume that the volume of the solution doesn't change when the KNO₂ is dissolved in it. Be sure your answer has a unit symbol, and round it to 2 significant digits. 8 x10