Homework Answers
Balanced chemical equation:
2CrO4^2- (aq)+ 2H+ (aq) <=>Cr2O7^2-(aq)+ H2O(l)
It is a double displacement reaction.
CrO4^2- is chromate anion .
Cr2O7^2- is dichromate anion.
An increase in concentration of dichromate ion will shift the equilibrium towards reactants.(to left).
An increase in concentration of H+ ions will favour the equilibrium towards product side (to right)
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o Observations and Interpretations to be Handed In For Activity 1: Observations and Interpretations 1) Balance...
Answer questions #1-6 please Observations and Interpretations to be Handed In For Activity: Observations and Interpretations...
Answer questions #1-6 please
Observations and Interpretations to be Handed In For Activity: Observations and Interpretations 1) Balance the chromate / dichromate equilibrium equation: 2 Cro. (aq) + H(aq) + Cryo,'(aq) + H2O(1) (unbalanced equation) 2) What was the original color of the K,CrO solution? If the above equilibrium is established in the original solution, which species, Cro, (aq), or Cro" (aq) appears to be present in greatest amount? 3) What color did you observe after adding the 3M H2SO,...
For Activity 2: Observations and Interpretations CH,COOH(aq) C CHCOO (aq) + 1) What was the color...
For Activity 2: Observations and Interpretations CH,COOH(aq) C CHCOO (aq) + 1) What was the color of the solution after adding the drop of methyl orange indicator red indicator showing high (H+] 2) What color did you observe after adding the sodium acetate, CH,COONa? it went on orange: indicator housing less 3) Assume that the dynamic equilibrium represented in the equation given above is present in the original solution you placed in the test tube. Based on LeChatelier's Principle, as...
1. Chromate-Dichromate Equation: 2G002 +2H* = Cr2O +H30 Observations Explanation (LeChatelier's Principle) (1)H2SO4 (aq) yellow-alonge addition...
1. Chromate-Dichromate Equation: 2G002 +2H* = Cr2O +H30 Observations Explanation (LeChatelier's Principle) (1)H2SO4 (aq) yellow-alonge addition color formed (2)NaOH (aq) addition still yellow and ofter 20 min lit is clear
» What color did you observe after adding the 3M H2SO, solution? 4) What color did...
» What color did you observe after adding the 3M H2SO, solution? 4) What color did you observe after adding the IM NaOH solution? Assume that the dynamic equilibrium represented in the equation in I is present in the original solution you placed in the test tube. Based on LeChatelier's Principle, as stated above on page one, you will interpret the observations made in 2, above: (Note that H SO, produces H+ in solution.) a) When sulfuric acid was added,...
please help with 2, 4, 6. thanks!! Activity 4: Observations and Interpretations NHCl(s) + H2O(l) +...
please help with 2, 4, 6. thanks!!
Activity 4: Observations and Interpretations NHCl(s) + H2O(l) + NH(aq) + Cl(aq) 1) What did you observe when you added the concentrated HCl solution to the saturated solution of ammonium chloride? White crystal precipitate formed 2) Interpret the observation in 1, in terms of the equation given above and LeChateliers Principle. 3) What did you observe when you placed this test tube in the boiling water bath? By adding heat, the precipitate went...
Activity 4: Observations and Interpretations NH.C(s) + H.O() ( NH. (aq) + Cl(aq) " What did...
Activity 4: Observations and Interpretations NH.C(s) + H.O() ( NH. (aq) + Cl(aq) " What did you observe when you added the concentrated HC solution to the saturated solution of ammonium chloride? 4) Interpret the observation in 1. in terms of the equation given above and LeChatelier's Principle. 3) What did you observe when you placed this test tube in the boiling water bath? 4) Based on your observations in 3, which of the reactions in the equilibrium, written above,...
EQUILIBRIUM AND LECHATELIERIS PRINCIPLE CHM 1045L / CHM 1046 DATA SHEET NAME STD # SEQUENCE # 1. Chromate-Dichrom...
EQUILIBRIUM AND LECHATELIERIS PRINCIPLE CHM 1045L / CHM 1046 DATA SHEET NAME STD # SEQUENCE # 1. Chromate-Dichromate Equation: 260,+2H" Observations (1)H SO. (aq) Yellow -cong addition colorformed Creo +H2O Explanation (LeChatelier's Principle) (2)NaOH(aq) addition I still yellow sund ofter 20 min litis clear 2. Acetic Acid - Acetate lon Equation: Explanation (LeChatelier's Principle) CH3COONa (aq) addition Observations The pink solution turns yellow Acetate is added د له م 3. Ammonia - Ammonium lon Equation: NH3 + H2O NH +...
I need help with these questions, I just dont get it Consider the equilibrium between chromate...
I need help with these questions, I just dont get it Consider the equilibrium between chromate (CrO42-) and dichromate (Cr2O72-) in aqueous acid. 2CrO4^2-(aq) + 2H^+(aq) ⇌ Cr2O7^2-(aq) + H2O(l) Answer the following questions about the above equilibrium. 1.To an orange colored equilibrium mixture, concentrated sulfuric acid is added. What do you expect to observe for the color of the reaction mixture? Explain your answer and give reasons. 2. To an orange colored equilibrium mixture, a few drops of ammonia...
could you Explain in details LeChatelier's Principle 1. Chromate-Dichromate 2 -2 Equation: Cr, 0 HO Explanation...
could you Explain in details LeChatelier's Principle
1. Chromate-Dichromate 2 -2 Equation: Cr, 0 HO Explanation (LeChatelier's Principle) Observations yellcw-crange color (1)H2SO4 (aq) addition turned To (2)NAOH (aq) addition yella lafta 20 minclear 2. Acetic Acid - Acetate lon Equation: Hао CH3 C00H H20 CH3CO0 Observations Explanation (LeChatelier's Principle) PhnE Solution turnad to Yeliow CH 3COONA (aq) addition 3. Ammonia - Ammonium lon Equation: H02 NHe CHi NH Explanation (LeChatelier's Principle) Observations Brigtt pin turnod Suuper hight (1)NH2CI (aq) addition...
2. Balance the following reaction that occurs in acid, using the half-reaction method. I-1(aq) + CrO4-1(aq)...
2. Balance the following reaction that occurs in acid, using the half-reaction method. I-1(aq) + CrO4-1(aq) --> I2(s) + Cr+3(aq) When this reaction is balanced, there will be (?) H+(aq) and (?) H2O(l) in the final balanced equation. (Enter numbers without the plus sign.)
Answer questions #1-6 please
Observations and Interpretations to be Handed In For Activity: Observations and Interpretations 1) Balance the chromate / dichromate equilibrium equation: 2 Cro. (aq) + H(aq) + Cryo,'(aq) + H2O(1) (unbalanced equation) 2) What was the original color of the K,CrO solution? If the above equilibrium is established in the original solution, which species, Cro, (aq), or Cro" (aq) appears to be present in greatest amount? 3) What color did you observe after adding the 3M H2SO,...
For Activity 2: Observations and Interpretations CH,COOH(aq) C CHCOO (aq) + 1) What was the color of the solution after adding the drop of methyl orange indicator red indicator showing high (H+] 2) What color did you observe after adding the sodium acetate, CH,COONa? it went on orange: indicator housing less 3) Assume that the dynamic equilibrium represented in the equation given above is present in the original solution you placed in the test tube. Based on LeChatelier's Principle, as...
1. Chromate-Dichromate Equation: 2G002 +2H* = Cr2O +H30 Observations Explanation (LeChatelier's Principle) (1)H2SO4 (aq) yellow-alonge addition color formed (2)NaOH (aq) addition still yellow and ofter 20 min lit is clear
» What color did you observe after adding the 3M H2SO, solution? 4) What color did you observe after adding the IM NaOH solution? Assume that the dynamic equilibrium represented in the equation in I is present in the original solution you placed in the test tube. Based on LeChatelier's Principle, as stated above on page one, you will interpret the observations made in 2, above: (Note that H SO, produces H+ in solution.) a) When sulfuric acid was added,...
please help with 2, 4, 6. thanks!!
Activity 4: Observations and Interpretations NHCl(s) + H2O(l) + NH(aq) + Cl(aq) 1) What did you observe when you added the concentrated HCl solution to the saturated solution of ammonium chloride? White crystal precipitate formed 2) Interpret the observation in 1, in terms of the equation given above and LeChateliers Principle. 3) What did you observe when you placed this test tube in the boiling water bath? By adding heat, the precipitate went...
Activity 4: Observations and Interpretations NH.C(s) + H.O() ( NH. (aq) + Cl(aq) " What did you observe when you added the concentrated HC solution to the saturated solution of ammonium chloride? 4) Interpret the observation in 1. in terms of the equation given above and LeChatelier's Principle. 3) What did you observe when you placed this test tube in the boiling water bath? 4) Based on your observations in 3, which of the reactions in the equilibrium, written above,...
EQUILIBRIUM AND LECHATELIERIS PRINCIPLE CHM 1045L / CHM 1046 DATA SHEET NAME STD # SEQUENCE # 1. Chromate-Dichromate Equation: 260,+2H" Observations (1)H SO. (aq) Yellow -cong addition colorformed Creo +H2O Explanation (LeChatelier's Principle) (2)NaOH(aq) addition I still yellow sund ofter 20 min litis clear 2. Acetic Acid - Acetate lon Equation: Explanation (LeChatelier's Principle) CH3COONa (aq) addition Observations The pink solution turns yellow Acetate is added د له م 3. Ammonia - Ammonium lon Equation: NH3 + H2O NH +...
could you Explain in details LeChatelier's Principle
1. Chromate-Dichromate 2 -2 Equation: Cr, 0 HO Explanation (LeChatelier's Principle) Observations yellcw-crange color (1)H2SO4 (aq) addition turned To (2)NAOH (aq) addition yella lafta 20 minclear 2. Acetic Acid - Acetate lon Equation: Hао CH3 C00H H20 CH3CO0 Observations Explanation (LeChatelier's Principle) PhnE Solution turnad to Yeliow CH 3COONA (aq) addition 3. Ammonia - Ammonium lon Equation: H02 NHe CHi NH Explanation (LeChatelier's Principle) Observations Brigtt pin turnod Suuper hight (1)NH2CI (aq) addition...
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