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Calculate the ratio of lithium nitrite to nitrous acid to create a buffer system with a pH of 5.0. If the solution is .025M HNO

Calculate the ratio of lithium nitrite to nitrous acid to create a buffer system with a pH of 5.0. If the solution is .025M HNO2, how many grams of lithium nitrite would you need to add to the solution to create 1.0L of buffer (assume constant volume)? Ka = 4.5x10-4

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