1. You dissolve 5.00 g sodium hydrogen oxalate (NaHC2O4 ) in suffircient water to produce a...

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Chemistry

1. You dissolve 5.00 g sodium hydrogen oxalate (NaHC2O4 ) insuffircient water to produce a final solution volume of 100.0 mL.Assuming all of the solid dissolves, calculate the pH of thissolution.
2. You dissolve 5.00 g of sodium oxalate (Na2C2O4) in sufficientwater to produce a final solution volume of 100.0 mL. Assuming allof the solid dissolves, calculate the solution pH of thissolution.
3. You dissolve 5.00 g of sodium hydrogen oxalate and 5.00 gsodium oxalate in sufficient water to produce a final solutionvolume of 250.0 mL. Assuming both solids dissolve completely,calculate the pH of this solution.
4. Calculate the pH of the solution prepared in question #3after 2.00 mL 1.00 M sodium hydroxide is added to it.
5. You dissolve 5.00 g sodium hydrogen oxalate and 1.00 g sodiumhydroxide in sufficient water to produce a final solution volume of250.0 mL. Assuming both solids dissolve completely, calculate thepH of this solution.
6. Calculate the pH of the solution prepared in question #5after 2.00 mL 1.00 M hydrochloric acid is added to it.

Answer & Explanation Solved by verified expert

4.4 Ratings (725 Votes)

1 Here the given salt NaHC2O4 is the salt of HC2O4 which is the conjugate base of the weak acid H2C2O4 Oxalic Acid This salt dissociates as NaHC2O4 HC2O4 Na Now since HC2O4 is basic in nature it can accept H from water to form HC2O4 H2O H2C2O4 OH Now we See Answer

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