(c)BrHHO H1. 1% NaOH, H₂OOHH3CLOH2. H3OH3C(substance A)(substance B)

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Answered: (c) Br H HO H 1. 1% NaOH, H₂O OH H3C…

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter4: Energy And Chemical Reactions

Section: Chapter Questions

Problem 120QRT

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Sodium carbonate is a reagent that may be used to standardizeacids in the same way. In such standardization it was found that a 0.432-g sample ofsodium carbonate required 22.3 mL of a sulfuric acid solution to reach the end point forthe reaction.Na2CO3(aq) + H2SO4(aq) -----> H2O(l) + CO2(g) + Na2SO4(aq)What is the molarity of the H2SO4?
Solution (3) contains one solute: hydrogen peroxide (H2O2). Being an extremely unstable liquid, H2O2 is only available in solution form. The H2O2 available in the laboratory is a reagent grade 30.% (by mass) solution. To obtain solution (3), you need to dilute the 30.% H2O2 to the desired concentration of 3.6 M. Figure 4 (below) outlines the process of dilution. Complete the following to prepare 25.0 mL of solution (3). 100 2. Add some distilled water and swirl to mix 3. Add more distilled water 80- 100 1. Calculate the volume (mL) of concentrated BO to a total volume of 25.0 70 70 60 50 g H2O2 in the solution needed, 404 measure and concentrated = solution g H₂O2 in the dilute solution 50 40- 30 20 deliver the amount 20- 10- Figure 4. Preparation of Solution (3) by Dilution. 11. Complete the calculations for solution (3) to determine the volume of 30.% (m/m) H₂O2 needed to prepare 25.0 mL 3.6 M H2O2. As shown in Figure 4, the grams of H2O2 are the same in these two solutions.
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= (1) H H H H (2) (3)
2.) Calculate the moles of KHP in flask #2. grams KHP Molar Mass of KHP (A2) 204.22 g/mol moles KHP %3D Cal .009 (A11) %3D NOR 204.22 g/mol

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(c) Br H HO H 1. 1% NaOH, H₂O OH H3C LOH 2. H3O H3C (substance A) (substance B)