Four runs are performed by mixing the reagents as indicated at 25 °C. concentration of each reactant using the dilution formula. The total volume of each run is 100.00 mL. Note: A[Se] = [H2SEO3] Calculate the H2SEO3 + 6 T + 4 H* Se + 2 I3 + 3 H20 > Run 1 25.00 mL of 0.200 M H,SeO3 25.00 mL of 1.20 M KI Run 3 25.00 mL of 0.200 M H2SEO3 50.00 mL of 1.20 M KI 25.00 mL of 0.800 M HCI Run 4 25.00 mL of 0.200 M H,SeO3 25.00 mL of 1.20 M KI Run 2 50.00 mL of 0.200 M H2SEO3 25.00 mL of 1.20 M KI 25.00 mL of 0.800 M HCI 25.00 mL of0.800 M HCI 50.00 mL of 0.800 M HCI

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ISBN:9781305957404
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Chapter1: Chemical Foundations
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HOMEWORK EXERCISES
1. Four runs are performed by mixing the reagents as indicated at 25 °C. Calculate the
concentration of each reactant using the dilution formula. The total volume of each run is
100.00 mL. Note: A[Se] = [H2SEO3]
H2SEO3 + 6 I + 4 H → Se + 2 13 + 3 H20
Run 1
25.00 mL of 0.200 M H2SEO3
Run 2
50.00 mL of 0.200 M H,SeO3
Run 3
25.00 mL of 0.200 M H2SEO3
Run 4
25.00 mL of 0.200 M H,SeO3
25.00 mL of 1.20 M KI
25.00 mL of 1.20 M KI
50.00 mL of 1.20 M KI
25.00 mL of 1.20 M KI
25.00 mL of0.800 M HCI
25.00 mL of 0.800 M HC1
25.00 mL of 0.800 M HCI
50.00 mL of 0.800 M HCI
25.00 mL KCI
Run
[H,SeO3]o
[I ]o
[H*],
A [Se]
Δt
Rate (A[Se]/At)
k
Units
sec
1
300
300
37.5
75
3.
4+
Transcribed Image Text:HOMEWORK EXERCISES 1. Four runs are performed by mixing the reagents as indicated at 25 °C. Calculate the concentration of each reactant using the dilution formula. The total volume of each run is 100.00 mL. Note: A[Se] = [H2SEO3] H2SEO3 + 6 I + 4 H → Se + 2 13 + 3 H20 Run 1 25.00 mL of 0.200 M H2SEO3 Run 2 50.00 mL of 0.200 M H,SeO3 Run 3 25.00 mL of 0.200 M H2SEO3 Run 4 25.00 mL of 0.200 M H,SeO3 25.00 mL of 1.20 M KI 25.00 mL of 1.20 M KI 50.00 mL of 1.20 M KI 25.00 mL of 1.20 M KI 25.00 mL of0.800 M HCI 25.00 mL of 0.800 M HC1 25.00 mL of 0.800 M HCI 50.00 mL of 0.800 M HCI 25.00 mL KCI Run [H,SeO3]o [I ]o [H*], A [Se] Δt Rate (A[Se]/At) k Units sec 1 300 300 37.5 75 3. 4+
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