KHT --> K+ + HT- titarion we Weighed out ~2.0g of finely powdered potassium hydr
ID: 1019104 • Letter: K
Question
KHT --> K+ + HT- titarion
we Weighed out ~2.0g of finely powdered potassium hydrogen tartrate into 250.mL beaker. then we Added ~150.mL of distilled water. Using a vacuum filtration, fwe iltered the solution into a clean, dry Erlenmeyer flask with a side arm. then we Pipeted out 25.00 mL of into a 250.mL Erlenmeyer flask and trirate with Noah.
1st trail = it took 29.3 ml noah to titrate
2nd trail+ 34.24 ml
What would happen to the solubility and Ksp(that you calculated) if you started with 0.0000000001g of solid potassium hydrogen tartrate instead of 2.0g in step #1?
What would happen to the solubility and Ksp (that you calculated) if you used 100mL of water instead of 150mL of water in step #2? Explain.
What would happen to the solubility and Ksp (that you calculated) if you used 35mL of filtrate instead of 25mL in step #5 but was not noted? Explain.
Explanation / Answer
Molarity of KHP solution = 2 g/204.22 g/mol x 0.250 L = 0.039 M
If we take 0.0000000001 g of KHP inseatd of 2 g KHP, the solubility and Ksp calculated would be lower than when 2 g material is taken.
If we used 100 ml water instead of 250 ml water, the KHP solution concentration would be higher and hence lower volume of NaOH would be needed for titration. the solubility and Ksp would be lower.
If we to use 35 ml aliquot instead of 25 ml in step #5, the volume of NaOH used would be higher. The solubility and Ksp would be higher.
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