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Experiment 17- LeChatelier's Principle Name Jonathan Ney DATA & CALCULATIONS/ "Results" means- Page 7 (rev 2/20) Partner Date Performed: Give your actual physical observation. Color changes, precipitates, gases, etc. "Explain in terms of LeChatelier's Principle" means Indicate the direction an equilibrium system shifts. Give reason for shift in terms of LeChatelier's Principle A. Saturated NaCl Solution: Results of adding conc. HCI precipitates while, Seporores to clear Chemical Equation for equilibrium system affected by HCI NaCl(s) = Na+ + Cl-(aq) Explain in terms of LeChatelier's Principle Adding HCl (I conc. increases reaction shifts in backward direction NaCl precipitates B. Chromate-Dichromate Equilibrium: 1. Chemical Equation for equilibrium system originally present Cr2O72-(aq) + 2OH- = 2CrO42-(aq) + H2O(l) 2. Results of adding HNO3 turned dark yellow to orange Explain in terms of LeChatelier's Principle. HNO3, H+ form acid Neutralizes OH- reaction goes in forward direction 3. Results of adding NaOH turned to orange Color Explain in terms of LeChatelier's Principle. C. Equilibria involving silver ions 1. Results of mixing Na2CO3 + AgNO3 Chunky light beige precipitate Chemical Equation for equilibrium system formed by mixing 2. Results of adding HNO3 returned to clear liquid Explain in terms of LeChatelier's Principle.

          Experiment 17- LeChatelier's Principle
Name Jonathan Ney
DATA & CALCULATIONS/
"Results" means-
Page 7
(rev 2/20)
Partner
Date Performed:
Give your actual physical observation.
Color changes, precipitates, gases, etc.
"Explain in terms of LeChatelier's Principle" means
Indicate the direction an equilibrium system shifts.
Give reason for shift in terms of LeChatelier's Principle
A. Saturated NaCl Solution:
Results of adding conc. HCI precipitates while, Seporores to clear
Chemical Equation for equilibrium system affected by HCI NaCl(s) = Na+ + Cl-(aq)
Explain in terms of LeChatelier's Principle Adding HCl (I conc. increases
reaction shifts in backward direction NaCl precipitates
B. Chromate-Dichromate Equilibrium:
1. Chemical Equation for equilibrium system
originally present Cr2O72-(aq) + 2OH- = 2CrO42-(aq) + H2O(l)
2. Results of adding HNO3 turned dark yellow to orange
Explain in terms of LeChatelier's Principle. HNO3, H+ form acid
Neutralizes OH- reaction goes in forward direction
3. Results of adding NaOH turned to orange Color
Explain in terms of LeChatelier's Principle.
C. Equilibria involving silver ions
1. Results of mixing Na2CO3 + AgNO3 Chunky light beige precipitate
Chemical Equation for equilibrium system formed by mixing
2. Results of adding HNO3 returned to clear liquid
Explain in terms of LeChatelier's Principle.

Experiment 17- LeChatelier's Principle
Name Jonathan Ney
DATA CALCULATIONS/
"Results" means-
Page 7
(rev 2/20)
Partner
Date Performed:
Give your actual physical observation.
Color changes, precipitates, gases, etc.
"Explain in terms of LeChatelier's Principle" means
Indicate the direction an equilibrium system shifts.
Give reason for shift in terms of LeChatelier's Principle
A. Saturated NaCl Solution:
Results of adding conc. HCI precipitates while, Seporores to clear
Chemical Equation for equilibrium system affected by HCI NaCl(s) = Na+ + Cl-(aq)
Explain in terms of LeChatelier's Principle Adding HCl (I conc. increases
reaction shifts in backward direction NaCl precipitates
B. Chromate-Dichromate Equilibrium:
1. Chemical Equation for equilibrium system
originally present Cr2O72-(aq) + 2OH- = 2CrO42-(aq) + H2O(l)
2. Results of adding HNO3 turned dark yellow to orange
Explain in terms of LeChatelier's Principle. HNO3, H+ form acid
Neutralizes OH- reaction goes in forward direction
3. Results of adding NaOH turned to orange Color
Explain in terms of LeChatelier's Principle.
C. Equilibria involving silver ions
1. Results of mixing Na2CO3 + AgNO3 Chunky light beige precipitate
Chemical Equation for equilibrium system formed by mixing
2. Results of adding HNO3 returned to clear liquid
Explain in terms of LeChatelier's Principle.

Added by Kelsey W.

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