Stoichiometric ratio at intersection? Results/Observations Choice I. Stoichiomet

Question

Stoichiometric ratio at intersection? Results/Observations Choice I. Stoichiometry and Limiting Reactant A. Reaction Between Hydrochloric Acid and Sodium Hydroxide Table I Temperature Moles HCl mL O M NaOH Moles NaOH change, °C 24.45.0 2y. S 40.0 24.0 35.0 23. 30.0 23. 25.0 24.0 20.0 ·D045 004 00 3S 003 0025 002 5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 45.0 .06l 1.4 O6l DoIS 002 . 602S 5. 3 ·003 003S 3.S -00y. 2.2 S, 3 3.115.0 3.8 10.0 23.5 5.0 Intersection of ascending and descending portions of graph, mol NaOH Stoichiometric ratio, mol HCl/mol NaOH at intersection Balanced chemical equation for the reaction between HCl and NaOH 001 boos 0045 0.S

Explanation / Answer

The intersection is esssentially the equivalence point, the point in which moles of base = moles of acid

This is done when mol of acid = mol of base = 0.0025

The stoichiometric ratio is 1:1 since 0.0025/0.0025 = 1/1

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