2. Would the sulfate have precipitated in part A if NaOH solution would have been addedPost-lab Questions:does this say about the purity of your solid?instead of Ba(NO.)2? If not, why and would any other precipitate(s) form?3. What should the mass percentage of H20 be in the alum? How close was yourexperimental value? If your value is inaccurate, greater than +5%, explain a probablereason why.4. What should the mass percentage of SO.2 be in the alum? How close was yourexperimental value? If your value is inaccurate, greater than +5%, explain a probablereason why.5. Analyzing your results from all three quantitative sections of the lab, do you think thesample you synthesized in lab is indeed alum? Back your statement up with the datafrom your lab notebook and any numbers you calculated.6. Not counting any experiments, you just completed to analyze your alum sample, whattests would you have conducted to analyze the purity of the synthesized alum?

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Chemistry

Post-lab Questions: does this say about the purity of your solid?

Chemistry

10th Edition

ISBN:9781305957404

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

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

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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1. Commercial vinegar was titrated with NaOH solution to determine the content of acetic acid, CH3COOH. For 20.0 cm3 of the vinegar, 26.7 cm3of 0.60 mol dm-3 NaOH solution was required.What was the concentration of acetic acid in the vinegar if no other acid was present? (Thanks for your help) A. 0.45 mol dm-3B. 0.60 mol dm-3C. 0.80 mol dm-3D. 1.60 mol dm-3
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