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Data Table A. Stock solution concentrations of HCl, H 3 PO 4 and NaOH Data Table

ID: 987017 • Letter: D

Question

Data Table A. Stock solution concentrations of HCl, H3PO4 and NaOH

Data Table B. Temperature data for combinations of NaOH and HCl(aq)

Data Table C. Temperature data for combinations of NaOH and H3PO4

8.5

(a) Based on the amount of product formed in each of the mixing experiments (that is, the "final" line in each reaction table), which experiments involving NaOH and HCl, if any, would you expect to give the same temperature changes? (Select all that apply.)

experiment #1

experiment #2

experiment #3


(b) Based on the amount of product formed in each of the mixing experiments (that is, the "final" line in each reaction table), which experiments involving NaOH and H3PO4, if any, would you expect to give the same temperature changes? (Select all that apply.)

experiment #4

experiment #5

experiment #6

[HCl] 1.5 M [H3PO4] 1.0 M [NaOH] 1.5 M

Explanation / Answer

a) experiment 3

b) experiment 5