The Borax solution (Na2B4O7) was standardized by titrating 20.00 mL of sample with 1.044 M solution of H2SO4. It takes 2.63 mL of this H2SO4 to reach the end point. What was the concentration of this Borax solution?B4O7 2– (aq) + 7 H2O(l) → 2 B(OH)3(aq) + 2 B(OH)4 – (aq) 2 B(OH)4 – (aq) + H2SO4(aq) → 2 B(OH)3(aq) + 2 H2O(l) + SO4 2– (aq)
The Borax solution (Na2B4O7) was standardized by titrating 20.00 mL of sample with 1.044 M solution of H2SO4. It takes 2.63 mL of this H2SO4 to reach the end point. What was the concentration of this Borax solution?B4O7 2– (aq) + 7 H2O(l) → 2 B(OH)3(aq) + 2 B(OH)4 – (aq) 2 B(OH)4 – (aq) + H2SO4(aq) → 2 B(OH)3(aq) + 2 H2O(l) + SO4 2– (aq)
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter3: Chemical Reactions
Section: Chapter Questions
Problem 134QRT
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The Borax solution (Na2B4O7) was standardized by titrating 20.00 mL of sample with 1.044 M solution of H2SO4. It takes 2.63 mL of this H2SO4 to reach the end point. What was the concentration of this Borax solution?B4O7 2– (aq) + 7 H2O(l) → 2 B(OH)3(aq) + 2 B(OH)4 – (aq)
2 B(OH)4 – (aq) + H2SO4(aq) → 2 B(OH)3(aq) + 2 H2O(l) + SO4 2– (aq)
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