Consider the chemical reactions that were employed in this experiment. Why would one not want to...
Consider the chemical reactions that were employed in this experiment. Why would one not want to store a basic solution of KOH or NaOH in aluminum containers
Homework Answers
it can Also form Al(OH)3. In
all, aluminum will dissolve in base.
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Consider the chemical reactions that were employed in this
experiment. Why would one not want to...
Consider a solution of CrF2. (a) Write any possible chemical reactions that may occur in water...
Consider a solution of CrF2. (a) Write any possible chemical reactions that may occur in water and (b) would this solution be acidic, basic or neutral at 25C? Ka for the transitional metal acid is 1.0x10-4 and the Ka of hydrofluoric acid is 6.8x10-4.
Exercises: Experiment 9 25 pts Name 1. Write the net ionic equations for the reactions which...
Exercises: Experiment 9 25 pts Name 1. Write the net ionic equations for the reactions which occurred when aqueous KOH was initially added to: 12 pts a. Al(NO3), (aq) b. Fe(NO3)2 (aq) 000000004AAAAAAAAA c. Ni (NO3)2 (aq) AAAAAAUUU 2. How do the results you observed when excess KOH was added illustrate the amphoteric nature of aluminum hydroxide? Explain! 5 pts 3. Refer to your results in the solubility rule experiment (Experiment 5) to predict what would happen if the initial...
Experiment 7 Types of Chemical Reactions 49 QUESTIONS PRE LAB 1. List three specific safety instructions...
Experiment 7 Types of Chemical Reactions 49 QUESTIONS PRE LAB 1. List three specific safety instructions that are relevant to this lab. TO 2. List three observations that might suggest that a chemical reaction has occurred. 3. What observation would you expect to make when red litmus paper is exposed to a basic solution? 4. What is another word for a solid that is produced from the chemical reaction between two aqueous solu- tions?
Consider a solution of Cu(CH3COO)2. (a) Write any possible chemical reactions that may occur in water...
Consider a solution of Cu(CH3COO)2. (a) Write any possible chemical reactions that may occur in water and (b) would this solution be acidic, basic or neutral at 25C? Ka for the transitional metal acid is 3x10-8 and the Ka of carbocyclic acid is 1.8x10-5.
Experiment 5 Types of Chemical Reactions Prelaboratory Assignment (You must turn in the prelaboratory assianment on...
Experiment 5 Types of Chemical Reactions Prelaboratory Assignment (You must turn in the prelaboratory assianment on the day of your experiment) Student Name Date Team Members 1. Give one example for each of the four types of chemical reactions by writing a balanced equation for each type. (a) Decomposition (b) Precipitation (c) Single displacement (d) Double displacement List the three chemical processes that can lead to the removal of ions from solution and thus drive a metathesis reaction. Give one...
o IT - - Experiment 8: Chemical Equations CHM 107 Part C: Combustion Reactions 7. Propane,...
o IT - - Experiment 8: Chemical Equations CHM 107 Part C: Combustion Reactions 7. Propane, CH., burns in air 8. Acetaldehyde, CH CHO, is completely axidized 9. Sugar, CHO11, undergoes combustion Part D: Single Replacement 10. Hydrogen is released when aluminum reacts with hydrochloric acid 11. Magnesium reacts with silver nitrate solution 12. Calcium reacts with hydrochloric acid Part E: Double Replacement Reactions 13. Barium carbonate precipitates from the reaction of barium chloride and sodium carbonate solutions 75
The Reactions Between Bromine and Antimony or Aluminum: In the hood, small pieces of aluminum foil...
The Reactions Between Bromine and Antimony or Aluminum: In the hood, small pieces of aluminum foil and antimony will be added to bromine under standard conditions. The bromine is in a flask with a narrow neck. Placing a beaker having a 1M aqueous solution of sodium thiosulfate nearby when performing the reaction. a) Provide balanced chemical reactions describing the behavior for each of the two reactions (bromine + antimony and bromine + aluminum)? b) Are there any particular hazards associated...
Questions 1. Why do you want to stop the titration of want to stop the titration...
Questions 1. Why do you want to stop the titration of want to stop the titration of the solution at the lightest pink color you can detect? Because it's the equvilant point 2. How would this experiment change if the HCI was the standard solution and NaOH was the unknown? 3. What is the proper way to dilute acids with water? water then acid 4. In this experiment, you diluted the HCI given to you and then titrated the samples....
REPORT SHEET Experiment Number Observations Before and After Reactions Complete and Balance Reaction Type Mg +0,-...
REPORT SHEET Experiment Number Observations Before and After Reactions Complete and Balance Reaction Type Mg +0,- 18 Experiment 7 Types of Chemical Reactions Zn + HCI- H.0,- Re+ Cuso, (5) Pb(NO), + H,80,- (6) Caco, + HCI- CuSO,5H,0 CaO + HẠO - FeSO, + KMnO (10) N.CO, + HCI Experiment 7 Types of Chemical Reactions 49 QUESTIONS PRE LAB 1. List three specific safety instructions that are relevant to this lab. 2. List three observations that might suggest that a...
Why would an employed consumer cut spending when other workers were being laid off?
Why would an employed consumer cut spending when other workers were being laid off?
Exercises: Experiment 9 25 pts Name 1. Write the net ionic equations for the reactions which occurred when aqueous KOH was initially added to: 12 pts a. Al(NO3), (aq) b. Fe(NO3)2 (aq) 000000004AAAAAAAAA c. Ni (NO3)2 (aq) AAAAAAUUU 2. How do the results you observed when excess KOH was added illustrate the amphoteric nature of aluminum hydroxide? Explain! 5 pts 3. Refer to your results in the solubility rule experiment (Experiment 5) to predict what would happen if the initial...
Experiment 7 Types of Chemical Reactions 49 QUESTIONS PRE LAB 1. List three specific safety instructions that are relevant to this lab. TO 2. List three observations that might suggest that a chemical reaction has occurred. 3. What observation would you expect to make when red litmus paper is exposed to a basic solution? 4. What is another word for a solid that is produced from the chemical reaction between two aqueous solu- tions?
Experiment 5 Types of Chemical Reactions Prelaboratory Assignment (You must turn in the prelaboratory assianment on the day of your experiment) Student Name Date Team Members 1. Give one example for each of the four types of chemical reactions by writing a balanced equation for each type. (a) Decomposition (b) Precipitation (c) Single displacement (d) Double displacement List the three chemical processes that can lead to the removal of ions from solution and thus drive a metathesis reaction. Give one...
o IT - - Experiment 8: Chemical Equations CHM 107 Part C: Combustion Reactions 7. Propane, CH., burns in air 8. Acetaldehyde, CH CHO, is completely axidized 9. Sugar, CHO11, undergoes combustion Part D: Single Replacement 10. Hydrogen is released when aluminum reacts with hydrochloric acid 11. Magnesium reacts with silver nitrate solution 12. Calcium reacts with hydrochloric acid Part E: Double Replacement Reactions 13. Barium carbonate precipitates from the reaction of barium chloride and sodium carbonate solutions 75
Questions 1. Why do you want to stop the titration of want to stop the titration of the solution at the lightest pink color you can detect? Because it's the equvilant point 2. How would this experiment change if the HCI was the standard solution and NaOH was the unknown? 3. What is the proper way to dilute acids with water? water then acid 4. In this experiment, you diluted the HCI given to you and then titrated the samples....
REPORT SHEET Experiment Number Observations Before and After Reactions Complete and Balance Reaction Type Mg +0,- 18 Experiment 7 Types of Chemical Reactions Zn + HCI- H.0,- Re+ Cuso, (5) Pb(NO), + H,80,- (6) Caco, + HCI- CuSO,5H,0 CaO + HẠO - FeSO, + KMnO (10) N.CO, + HCI Experiment 7 Types of Chemical Reactions 49 QUESTIONS PRE LAB 1. List three specific safety instructions that are relevant to this lab. 2. List three observations that might suggest that a...
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