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Name PRE-LAB QUESTIONS 1. Using your previous general chemistry knowledge, give some guidelines for predicting the...
Standardization of a Sodium Hydroxide Solution Section Name Score Date Post-lab Assignment 1. Calculate the molarity...
Standardization of a Sodium Hydroxide Solution Section Name Score Date Post-lab Assignment 1. Calculate the molarity of a barium hydroxide solution if you used 41.65 mL of it to neutralize 1.190 g of potassium hydrogen phthalate. Ba(OH)2(aq) + 2 KHC4H6O4(aq) + BaC,H,O4(aq) + K2CH4O4(aq) + 2 H300) 2. Write a balanced chemical equation for the reaction of hydrochloric acid with sodium hydroxide. 3. Calculate the molarity of a hydrochloric acid solution if 34.21 mL of 0.0431M sodium hydroxide neutralizes 25.00...
Las Positas College, Chemistry 1A Lab Manual Fall 2017 Page 41 PRE-LAB Name (To be completed...
Las Positas College, Chemistry 1A Lab Manual Fall 2017 Page 41 PRE-LAB Name (To be completed before coming to lab) Experiment 5 Identification of Reaction Products 1. Find all the pairs of ions in the following list which cannot exist together (in appreciable concentration) in the same aqueous solution without precipitating. That is, write any combination of the following ions which would form a precipitate, a weak acid, a weak base, or water. [Note: PbCl2 is slightly soluble.) OH Na...
The pressure of a sample of argon gas was increased from 1.67 atm to 6.51 atm...
The pressure of a sample of argon gas was increased from 1.67 atm to 6.51 atm at constant temperature. If the final volum of the argon sample was 15.0 L, what was the initial volume of the argon sample? Assume ideal behavior. V= How many grams of Kr are in a 9.31 L cylinder at 14.4 °C and 2.64 atin? mass: Write the net ionic equation for the acid-base reaction. Include physical states. HCl(aq) + KOH(aq) → H20(1) + KCl(aq)...
Pre-Lab Assignment, Lab 3 (detach and submit to your TA at the beginning of your lab...
Pre-Lab Assignment, Lab 3 (detach and submit to your TA at the beginning of your lab session) Name: Date: TA: 1. Consider 30.0 mL of water th temperature that should be observed? (in "C) Show your work. at has absorbed 1540 J of heat from a chemical reaction. What is the change in 2. Write ba producing sodium chloride and water; b) ammonium chloride and sodium hydroxide producing ammonia, sodiun chloride and water, c) reaction of aluminum with hydrochloric acid...
Chemistry Laboratory Manual 2017 Revision 3) Get a medium test tube and place about 2 ml...
Chemistry Laboratory Manual 2017 Revision 3) Get a medium test tube and place about 2 ml of hydrochloric acid into it. Now add a piece of magnesium metal and notice what happens over time Evidence of a shemical reaction white bubbles Balanced chemical equation: Balanced lonie equation: Balanced net ionic equation: 4) Demonstration: Your instructor will demonstrate the reaction that takes place between lithium metal and water. The demonstration will include a test of the resulting solution with universal indicator...
What are volumetric pipets and burets and what are they used for? 1. 2. To what volume are you to record the values from the buret? 3. 0.3811 g sample of KOH will just neutralize what volume of...
What are volumetric pipets and burets and what are they used for? 1. 2. To what volume are you to record the values from the buret? 3. 0.3811 g sample of KOH will just neutralize what volume of 0.2000 M HS02 Write the balanced chemical equation. a. b. What volume of 0.2000 M H SO, will just neutralize the KOH sample? 4. In a experiment similar to yours, a solution is prepared by adding 4.512 g of slaked lime also...
Name Experiment 5- Post-lab Questions 1. In Reaction B, you observed magnesium metal reacting with a...
Name Experiment 5- Post-lab Questions 1. In Reaction B, you observed magnesium metal reacting with a hydrochloric acid solution to produce hydrogen gas and a magnesium chloride solution. Another reaction that has a gaseous product is the reaction of a hydrochloric acid solution (HCl(ag)) with sodium sulfite (Na,so,(ag)) solution to produce a sodium chloride solution (NaCl(aq)) and gaseous sulfur dioxide (S0,(g)). Write a balanced chemical equation for this reaction. 2. The sulfur dioxide produced by aqueous chemistry in the previous...
General Chemistry-CH 121 (Chapter 5) Exam 4 NAME sie rris DATE 3 NOv. 20/9 Complete the following. Show ALL Work/Ca...
General Chemistry-CH 121 (Chapter 5) Exam 4 NAME sie rris DATE 3 NOv. 20/9 Complete the following. Show ALL Work/Caloulations to get credit 1. (10pts) A 10.00 ml sample of an aqueous solution of Strontum nitrate requires 23.30 ml of 0.02000 M Lithium sulfate for a reaction to come to completion What is the molarity of the strontium nitrate solution? M1 VL M Y 2. (15pts) Barium nitrate is used to produce a green color in fireworks. It can be...
Problem Set 7 Stoichiometry Calculations Name: Date: Lab Section: General Instructions: Complete the following problems, Circle...
Problem Set 7 Stoichiometry Calculations Name: Date: Lab Section: General Instructions: Complete the following problems, Circle answers and show all work on separate sheet(s) of paper. 5 problems will be chosen randomly for assessing a score on this assignment. Assignment is due at the end of the lab period. 1.) 5.0 g of magnesium metal is burned in excess oxygen to produce magnesium oxide. (a) Write a balanced chemical equation for this reaction with the correct phases of all substances...
4.3b) Write a net ionic equation for the overall reaction that occurs when aqueous solutions of...
4.3b) Write a net ionic equation for the overall reaction that occurs when aqueous solutions of potassium hydroxide and carbonic acid (H2CO3) are combined. Assume excess base. Use the pull-down boxes to specify states such as (aq) or (s) 4.3c) Write a net ionic equation for the reaction that occurs when solid zinc carbonate is combined with excess aqueous hydroiodic acid. Use the pull-down boxes to specify states such as (aq) or (s). If a box is not needed leave...
Standardization of a Sodium Hydroxide Solution Section Name Score Date Post-lab Assignment 1. Calculate the molarity of a barium hydroxide solution if you used 41.65 mL of it to neutralize 1.190 g of potassium hydrogen phthalate. Ba(OH)2(aq) + 2 KHC4H6O4(aq) + BaC,H,O4(aq) + K2CH4O4(aq) + 2 H300) 2. Write a balanced chemical equation for the reaction of hydrochloric acid with sodium hydroxide. 3. Calculate the molarity of a hydrochloric acid solution if 34.21 mL of 0.0431M sodium hydroxide neutralizes 25.00...
Las Positas College, Chemistry 1A Lab Manual Fall 2017 Page 41 PRE-LAB Name (To be completed before coming to lab) Experiment 5 Identification of Reaction Products 1. Find all the pairs of ions in the following list which cannot exist together (in appreciable concentration) in the same aqueous solution without precipitating. That is, write any combination of the following ions which would form a precipitate, a weak acid, a weak base, or water. [Note: PbCl2 is slightly soluble.) OH Na...
The pressure of a sample of argon gas was increased from 1.67 atm to 6.51 atm at constant temperature. If the final volum of the argon sample was 15.0 L, what was the initial volume of the argon sample? Assume ideal behavior. V= How many grams of Kr are in a 9.31 L cylinder at 14.4 °C and 2.64 atin? mass: Write the net ionic equation for the acid-base reaction. Include physical states. HCl(aq) + KOH(aq) → H20(1) + KCl(aq)...
Pre-Lab Assignment, Lab 3 (detach and submit to your TA at the beginning of your lab session) Name: Date: TA: 1. Consider 30.0 mL of water th temperature that should be observed? (in "C) Show your work. at has absorbed 1540 J of heat from a chemical reaction. What is the change in 2. Write ba producing sodium chloride and water; b) ammonium chloride and sodium hydroxide producing ammonia, sodiun chloride and water, c) reaction of aluminum with hydrochloric acid...
Chemistry Laboratory Manual 2017 Revision 3) Get a medium test tube and place about 2 ml of hydrochloric acid into it. Now add a piece of magnesium metal and notice what happens over time Evidence of a shemical reaction white bubbles Balanced chemical equation: Balanced lonie equation: Balanced net ionic equation: 4) Demonstration: Your instructor will demonstrate the reaction that takes place between lithium metal and water. The demonstration will include a test of the resulting solution with universal indicator...
What are volumetric pipets and burets and what are they used for? 1. 2. To what volume are you to record the values from the buret? 3. 0.3811 g sample of KOH will just neutralize what volume of 0.2000 M HS02 Write the balanced chemical equation. a. b. What volume of 0.2000 M H SO, will just neutralize the KOH sample? 4. In a experiment similar to yours, a solution is prepared by adding 4.512 g of slaked lime also...
Name Experiment 5- Post-lab Questions 1. In Reaction B, you observed magnesium metal reacting with a hydrochloric acid solution to produce hydrogen gas and a magnesium chloride solution. Another reaction that has a gaseous product is the reaction of a hydrochloric acid solution (HCl(ag)) with sodium sulfite (Na,so,(ag)) solution to produce a sodium chloride solution (NaCl(aq)) and gaseous sulfur dioxide (S0,(g)). Write a balanced chemical equation for this reaction. 2. The sulfur dioxide produced by aqueous chemistry in the previous...
General Chemistry-CH 121 (Chapter 5) Exam 4 NAME sie rris DATE 3 NOv. 20/9 Complete the following. Show ALL Work/Caloulations to get credit 1. (10pts) A 10.00 ml sample of an aqueous solution of Strontum nitrate requires 23.30 ml of 0.02000 M Lithium sulfate for a reaction to come to completion What is the molarity of the strontium nitrate solution? M1 VL M Y 2. (15pts) Barium nitrate is used to produce a green color in fireworks. It can be...
Problem Set 7 Stoichiometry Calculations Name: Date: Lab Section: General Instructions: Complete the following problems, Circle answers and show all work on separate sheet(s) of paper. 5 problems will be chosen randomly for assessing a score on this assignment. Assignment is due at the end of the lab period. 1.) 5.0 g of magnesium metal is burned in excess oxygen to produce magnesium oxide. (a) Write a balanced chemical equation for this reaction with the correct phases of all substances...
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