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If 0.50 L 0.20 M HF solution is mixed with solution A to make a mixed solution with a total volume of 1.00 L. Kw = 1.00x
Posted: Sun Feb 13, 2022 8:02 am
by answerhappygod
- If 0 50 L 0 20 M Hf Solution Is Mixed With Solution A To Make A Mixed Solution With A Total Volume Of 1 00 L Kw 1 00x 1 (45.7 KiB) Viewed 27 times
If 0.50 L 0.20 M HF solution is mixed with solution A to make a mixed solution with a total volume of 1.00 L. Kw = 1.00x10-14; Ka(HF) = 6.6x104 at T=298K. (a) If solution A is 0.50 L 0.20 M HNO3, calculate the pH of the mixed solution. Ka(HNO3) = 100 (b) If solution A is 0.50 L 0.20 M NHACI, calculate the pH of the mixed solution. Ko(NH3) = 1.8x105 (c) If solution A is 0.50 L 0.20 M HNO2, calculate the pH of the mixed solution. Ka(HNO2) = 5.1x104 Hint: First list an equation that shows electrical neutrality in the solution. Also, neglect the [H*] contribution from water. Then use [H] and the equilibrium constant(s) to express the anion concentrations in the equation you obtained for electrical neutrality, and you will find there is single unknown (H') in the equation.