000 is needed what volumes of hno2 and kno2 are

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Unformatted text preview: is needed. What volumes of HNO2 and KNO2 are required to make 1.000 L of the buffered solution? Practice Exam #9 Practice A 50.0 mL sample of 2.0 x 10-4 M CuNO3 is added to 50.0 mL of 50.0 4.0 M NaCN. Cu+ reacts with CN– to form the complex ion Cu(CN)32– which has a Kf of 1.0 x 109. a. What are the concentrations of Cu+ and CN– at equilibrium? a. Practice #9b Practice What mass of CuI (Ksp = 1.3 x 10-13) can be dissolved What in 1.0 L of 1.0 M NaCN?...
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