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11 Nov 2019
10) 1. In this s expenment, we examined the reaction between sodium hydro xide and monoprotic diprotic acids. How much NaOH would be needed to titrate a triprotic acid (like phosphon acid) to its endpoint? If we provided 20.0 ml. of phosphoric acid (concentration approximately M), how much of your NaOH solution would you need to titrate this sample? Write a balanced molecular equation, and show your work 0.4 2we used potssium hydrogen phthalate to standardize the sodium bydroxide solution. Why was this step necessary? (12) 3. Write a balanced molecular equation for the following reactions, then determine the concentration of the compound in brackets. Show (or describe) your work-how did you calculate these concentrations? [Acetic acid] -NaOH (aq) +-HCJ,o, (aq) â [Sulfuric acid]-NaOH (aq) + _HSo, (aq) â [Vinegarl NaOH (ag) (5) 4. As the first step in next week's lab experiment, you will dilute your-0.3 M NaOH solution down to -0.1 M. You will need 250 ml. of solution. Use VG-V.C, and determine the volume of your NaOH solution you will need next week
10) 1. In this s expenment, we examined the reaction between sodium hydro xide and monoprotic diprotic acids. How much NaOH would be needed to titrate a triprotic acid (like phosphon acid) to its endpoint? If we provided 20.0 ml. of phosphoric acid (concentration approximately M), how much of your NaOH solution would you need to titrate this sample? Write a balanced molecular equation, and show your work 0.4 2we used potssium hydrogen phthalate to standardize the sodium bydroxide solution. Why was this step necessary? (12) 3. Write a balanced molecular equation for the following reactions, then determine the concentration of the compound in brackets. Show (or describe) your work-how did you calculate these concentrations? [Acetic acid] -NaOH (aq) +-HCJ,o, (aq) â [Sulfuric acid]-NaOH (aq) + _HSo, (aq) â [Vinegarl NaOH (ag) (5) 4. As the first step in next week's lab experiment, you will dilute your-0.3 M NaOH solution down to -0.1 M. You will need 250 ml. of solution. Use VG-V.C, and determine the volume of your NaOH solution you will need next week
Keith LeannonLv2
21 Jun 2019