Homework Answers
5) A describes the best .
First, the temperature is constant of the deionized water.After the addition of sodium carbonate there will be an exothermic reaction and the temperature of the system goes up.After some time when the temperature also become constant.
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5) After monitoring the temperature of cup for...
12 If white anhydrous copper(II) sulfate powder is left in the atmosphere it slowly absorbs water...
12 If white anhydrous copper(II) sulfate powder is left in the atmosphere it slowly absorbs water vapour giving the blue pentahydrated solid. Cuso (s) + SH,O(1) CuSO, SH,O(s) (anhydrous) (pentahydrated) It is difficult to measure the enthalpy change for this reaction directly. However, it is possible to measure the heat changes directly when both anhydrous and pentahydrated copper(II) sulfate are separately dissolved in water, and then use an energy cycle to determine the required enthalpy change value, AH,, indirectly. AH...
can someone answer questions 13-16 please G.C. 2-7 Studying the Effect of Changes in Conditions on...
can someone answer questions 13-16 please
G.C. 2-7 Studying the Effect of Changes in Conditions on an Equilibrium System 57 System No. 4: (Coch,0) + 4C"5 [CoCl2 m + 6H,0 Solutions Observations Dissolved CoCly-61,0 Pink Solution Solution plus HCI Blue solution Heated solution Blue solution Cooled solution Pink solution 9. According to the equilibrium equation, which ion(s) do you have after the solid was diluted? Explain how you know the identity of the ion(s) present. 10. Explain what happened when...
i need help with post questions, thanks Product Isolation After stirring the reaction for 5 minutes...
i need help with post questions, thanks
Product Isolation After stirring the reaction for 5 minutes and allowing the reaction mixture to cool (the reaction can be exothermic), remove the Claisen head from the conical vial. Slowly add 3 M HCl(aq) drop-wise. The solid may need to be broken up with a stirring rod or a pipet. Continue to add acid until the aqueous phase (bottom layer) tests positive with pH paper. Extractions can be done using the conical funnel...
please help me out answering thsese comp,etely and corrctly. thanks. lab Write balanced chemical equations for...
please help me out answering thsese comp,etely and corrctly.
thanks.
lab Write balanced chemical equations for the following chemical reactions. NOTE: some of may already be balanced · Lehium metal and water react to produce lithium hydroxide and hydrogen gas. 2. When solutions of silver nitrate and potassium bromide are combined, solid silver bromide 3. Suilturic acid is produced when sulfur trioxide reacts with water. HINT: Sulfturic acid is Me reaction of iron metal with steam produces an iron compound....
1 Reaction C: Copper(II) Hydroxide to Copper(IT) Oxide Observations: The solntich goes from a light blue...
1 Reaction C: Copper(II) Hydroxide to Copper(IT) Oxide Observations: The solntich goes from a light blue to a dark blue. when heated the solution turns to a green/black color. Balanced Molecular Equation: Balanced Net lonie Equation: Reaction D: Copper(IT) Oxide to Copper(II) Sulfate Observations: "The back sond is dissolved in the acid. This creates a light blue / Clear solurich Balanced Molecular Equation: Balanced Net Ionic Equation: Reaction E: Copper(II) Sulfate to Copper Metal (and Dissolution of excess Mg) Observations:...
can you please help me plug in the correct number for number 5 so number 6...
can you please help me plug in the correct number for number 5
so number 6 can be completed. Im not confident that my numbers were
plugged in correctly.
Results Complete the following Data Table: Part A Finding the Specific Heat of a Metal 10.440 5,405 55.135 Mass of coffee cup calorimeter and lid Mass of test tube, stopper, and metal 55.475 Mass of empty test tube + stopper Mass of calorimeter, water, and lid 220c Initial temperature of water...
please help Description Balance Equation states on the prodeets) I. Aqueous sodium sulfate is placed in...
please help
Description Balance Equation states on the prodeets) I. Aqueous sodium sulfate is placed in a beaker containing aqueous plumbous acetate 2.Butanol (CH,OH) gas burns Dovble Re ingle 3. Aqueous lithium chloride is placed LiClca) AgNsLNAgclcDisa in a beaker containing aqueous silver nitrate 4. Aquous nickel ID sulfate is placed in a beaker containing reuchen magnesium metal 5. Aqueous calcium hydroxide is placed in an Erlenmeyer fnask reuction containing nitric acid 6 Perchloric acid is added to a beaker...
Principles of Inorganic Chemistry! Week 5 Effect of Temperature on Solubility of a Salt In this experiment, you w...
Principles of Inorganic Chemistry! Week 5 Effect of Temperature on Solubility of a Salt In this experiment, you will study the effect of changing temperature on the amount of solute that will dissolve in a given amount of water. Water solubility is an important physical property in chemistry, and is often expressed as the mass of solute that dissolves in 100 g of water at a certain temperature. In this experiment, you will completely dissolve different quantities of potassium nitrate,...
i need help answering the questions plz and thanks! Experiment 9 Report Sheet: Calculations and Questions...
i need help answering the questions plz and thanks!
Experiment 9 Report Sheet: Calculations and Questions Calculations 1. Determine which of the two starting materials is the limiting reagent, then determine the theoretical yield of [Cu(NH3)]SO4+H20. 2. Determine the percent yield after the first crystallization. Is this a valid percent yield? Explain. 3. Determine the percent yield of the second crystallization. Conclusion On the back of this page write a conclusion that comments on what you were trying to accomplish...
I need help with this post lab from Orgo. Anyone please help me. I have included...
I need help with this post lab from Orgo. Anyone please help
me. I have included the procedure from experiment, but let me know
if there is anything to add on this. Thank you
1. Write the overall balanced chemical equation (not the mechanism) for the reaction you carried out in this experiment. Equation must be charge and mass balanced. Use structures not molecular formula. (3 pts) Part A Table 2: Complete this table (15 pts) 2-methyl cyclohexanol cycloalkene Molecular...
12 If white anhydrous copper(II) sulfate powder is left in the atmosphere it slowly absorbs water vapour giving the blue pentahydrated solid. Cuso (s) + SH,O(1) CuSO, SH,O(s) (anhydrous) (pentahydrated) It is difficult to measure the enthalpy change for this reaction directly. However, it is possible to measure the heat changes directly when both anhydrous and pentahydrated copper(II) sulfate are separately dissolved in water, and then use an energy cycle to determine the required enthalpy change value, AH,, indirectly. AH...
can someone answer questions 13-16 please
G.C. 2-7 Studying the Effect of Changes in Conditions on an Equilibrium System 57 System No. 4: (Coch,0) + 4C"5 [CoCl2 m + 6H,0 Solutions Observations Dissolved CoCly-61,0 Pink Solution Solution plus HCI Blue solution Heated solution Blue solution Cooled solution Pink solution 9. According to the equilibrium equation, which ion(s) do you have after the solid was diluted? Explain how you know the identity of the ion(s) present. 10. Explain what happened when...
i need help with post questions, thanks
Product Isolation After stirring the reaction for 5 minutes and allowing the reaction mixture to cool (the reaction can be exothermic), remove the Claisen head from the conical vial. Slowly add 3 M HCl(aq) drop-wise. The solid may need to be broken up with a stirring rod or a pipet. Continue to add acid until the aqueous phase (bottom layer) tests positive with pH paper. Extractions can be done using the conical funnel...
please help me out answering thsese comp,etely and corrctly.
thanks.
lab Write balanced chemical equations for the following chemical reactions. NOTE: some of may already be balanced · Lehium metal and water react to produce lithium hydroxide and hydrogen gas. 2. When solutions of silver nitrate and potassium bromide are combined, solid silver bromide 3. Suilturic acid is produced when sulfur trioxide reacts with water. HINT: Sulfturic acid is Me reaction of iron metal with steam produces an iron compound....
1 Reaction C: Copper(II) Hydroxide to Copper(IT) Oxide Observations: The solntich goes from a light blue to a dark blue. when heated the solution turns to a green/black color. Balanced Molecular Equation: Balanced Net lonie Equation: Reaction D: Copper(IT) Oxide to Copper(II) Sulfate Observations: "The back sond is dissolved in the acid. This creates a light blue / Clear solurich Balanced Molecular Equation: Balanced Net Ionic Equation: Reaction E: Copper(II) Sulfate to Copper Metal (and Dissolution of excess Mg) Observations:...
can you please help me plug in the correct number for number 5
so number 6 can be completed. Im not confident that my numbers were
plugged in correctly.
Results Complete the following Data Table: Part A Finding the Specific Heat of a Metal 10.440 5,405 55.135 Mass of coffee cup calorimeter and lid Mass of test tube, stopper, and metal 55.475 Mass of empty test tube + stopper Mass of calorimeter, water, and lid 220c Initial temperature of water...
please help
Description Balance Equation states on the prodeets) I. Aqueous sodium sulfate is placed in a beaker containing aqueous plumbous acetate 2.Butanol (CH,OH) gas burns Dovble Re ingle 3. Aqueous lithium chloride is placed LiClca) AgNsLNAgclcDisa in a beaker containing aqueous silver nitrate 4. Aquous nickel ID sulfate is placed in a beaker containing reuchen magnesium metal 5. Aqueous calcium hydroxide is placed in an Erlenmeyer fnask reuction containing nitric acid 6 Perchloric acid is added to a beaker...
Principles of Inorganic Chemistry! Week 5 Effect of Temperature on Solubility of a Salt In this experiment, you will study the effect of changing temperature on the amount of solute that will dissolve in a given amount of water. Water solubility is an important physical property in chemistry, and is often expressed as the mass of solute that dissolves in 100 g of water at a certain temperature. In this experiment, you will completely dissolve different quantities of potassium nitrate,...
i need help answering the questions plz and thanks!
Experiment 9 Report Sheet: Calculations and Questions Calculations 1. Determine which of the two starting materials is the limiting reagent, then determine the theoretical yield of [Cu(NH3)]SO4+H20. 2. Determine the percent yield after the first crystallization. Is this a valid percent yield? Explain. 3. Determine the percent yield of the second crystallization. Conclusion On the back of this page write a conclusion that comments on what you were trying to accomplish...
I need help with this post lab from Orgo. Anyone please help
me. I have included the procedure from experiment, but let me know
if there is anything to add on this. Thank you
1. Write the overall balanced chemical equation (not the mechanism) for the reaction you carried out in this experiment. Equation must be charge and mass balanced. Use structures not molecular formula. (3 pts) Part A Table 2: Complete this table (15 pts) 2-methyl cyclohexanol cycloalkene Molecular...
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