Answer c, e, f only 4. Sodium hydroxide solution was standardized against one gram of potassium acid phthalate.First trial used 52.0 ml of the solution while the second trial used 52.4 of the solution to reach theend point. Determine:(a) the standardized concentration of the solution?(b) the percent accuracy if you are going to prepare a one tenth of a molar solutionThe standardized basic solution was then used in getting the total acidity of a food sampie. Tenmilliliter of the acidic sample consumed 10.3mL in the first trial then 10.0mL in the second trial toreach endpoint. Determine:(c) the normality of the acidic sample?Compute the total acidity of the food sample assuming that ten grams of sample was dissoivedto 25ml of solution if the sample is:(e) Juice (MW.citric acid = 192.4 one mole citric acid reacts witn three moies NaOH)f you are a food satety inspector. would the sampie pass if (include reason)1 The stomach con only withstand 0.39-1.1% ctric acid?

4. Sodium hydroxide solution was standardized against one gram of potassium acid phthalate. First trial used 52.0 ml of the solution while the second trial used 52.4 of the solution to reach the end point. Determine: (a) the standardized concentration of the solution? (b) the percent accuracy if you are going to prepare a one tenth of a molar solution The stondo

4. Sodium hydroxide solution was standardized against one gram of potassium acid phthalate. First trial used 52.0 ml of the solution while the second trial used 52.4 of the solution to reach the end point. Determine: (a) the standardized concentration of the solution? (b) the percent accuracy if you are going to prepare a one tenth of a molar solution The stondo

World of Chemistry, 3rd edition

3rd Edition

ISBN:9781133109655

Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste

Chapter15: Solutions

Section: Chapter Questions

Problem 63A

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Potassium hydrogen phthalate is a solid, monoprotic acid frequently used in the laboratory as a primary standard. It has the formula KHC8H4O4. This is often written in the short-hand notation as KHP. If 25.0mL of a potassium hydroxide solution are needed to neutralize 2.26g of KHP, what is the molarity of the potassium hydroxide solution? Potassium hydrogen phthalate sometimes called potassium biphthalate, as shown on this bottle is an acid that is convenient to store and use because it is a solid.
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