Netflix ring 18 OWLV2 OWLv2 | Online teaching and learnin... View Holds Review T

Question

Netflix ring 18 OWLV2 OWLv2 | Online teaching and learnin... View Holds Review Topics] Use the References to access important values if needed for this question. A buffer solution is made that is 0.493 M in HNO2 and 0.493 M in KNO2 If K, for HNO2 is 4.50 x 104, what is the pH of the bufer solution? Write the net ionie equation for the reaction that occurs when 0.138 mol KOH is added to 1.00 L of the buffer solution. (Use the lowest possible coefficients. Omit states of matter.) Submit Answer Retry Entire Group 4 more group attempts remaining

Explanation / Answer

pH= pKa + log{[salt]/[acid]} = -logKa + log{[KNO2]/[HNO2]} = 3.34+ log1 = 3.34+0 = 3.34

HNO2 + KOH= KNO2 + H2O

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