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15. Mixing two solutions at room temperature releases heat. Repeating the experiment on ice would likely...
Data Table 1: Temperature Changes during Mixing of Different Volumes of 0.10 M HCl and 0.10 M NaOH Experiment Number HC...
Data Table 1: Temperature Changes during Mixing of Different Volumes of 0.10 M HCl and 0.10 M NaOH Experiment Number HCI (mL) NaOH (mL) Room Temp (°C) Temp of mix (°C) 100 0 22 22 0 90 10 22 23 1 3 80 20 22 24 2 4 5 70 60 30 40 22 22 26.8 28 4.8 6 6 50 50 22 28 6 7 40 50 22 27 5 8 30 70 22 26 4 9 20 80...
I need help to write a nice introduction for experiment 6 please ( no hands write ) typing Thank you HEAT TREATMENT OF STEELS EXPERIMENT 6 EXPERIMENT 6 HEAT TREATMENT OF STEELS THEORY The Ef...
I need help to write a nice introduction for experiment 6
please ( no hands write ) typing
Thank you
HEAT TREATMENT OF STEELS EXPERIMENT 6 EXPERIMENT 6 HEAT TREATMENT OF STEELS THEORY The Effect of Cooling Rate One of the most convenient methods for controlling the properties of a given steel, i.e., a steel whose composition is already fixed, consists of austenizing the steel and ten cooling to room temperature at some predetermined rate. A variation of cooling rates...
really need help as soon as possible please 6. (8 points, 2 points each) Consider the...
really need help as soon as possible please
6. (8 points, 2 points each) Consider the following reaction: Fe304(s) CO(g) + 3 Fe(s). CO2(g) AH +35.9 k) Circle the change expected for each of the following to reestablish equilibrium: a. Add CO2 to the equilibrium mixture form more form more no change products reactants b. Compress the equilibrium mixture at constant temperature. (smaller volume) form more form more no change products reactants c. Heat the equilibrium mixture form more form...
Write out your separation scheme for this experiment. 1. Heat 75 mL of water to 90...
Write out your separation scheme for this experiment. 1. Heat 75 mL of water to 90 °C in a 250-mL beaker. 2. While the water is being heated, place 250 mg of salicylic acid, 1 drop of 85% phosphoric acid and 0.5 mL of acetic anhydride in a test tube. Add a boiling chip to the mixture and gently shake it in order to mix the reactants. 3. Heat the tube in the beaker of water at 85 - 90...
CHEM 008L Lab 8: Diene Halogenations Purpose: In this virtual experiment, you will be investigating the...
CHEM 008L Lab 8: Diene Halogenations Purpose: In this virtual experiment, you will be investigating the effect of temperature on the addition of hydrochloric acid to 1,3-butadiene. You will be comparing key signals in the 13C NMR spectra of the reactant and product. HCI ci and/or 1,3-butadiene 3-chloro-1-butene 1-chloro-2-butene Figure 8.1 The addition of hydrochloric acid to 1,3-butadiene. Introduction: The 1,3-butadiene (AKA buta-1,3-diene) starting material is a conjugated diene, meaning that the double bonds are separated by only one single...
EXPERIMENT 2A DIELS-ALDER REACTION OF ANTHRACENE REFERENCES Pavia et al (4/e): Tech. 6.1/6.2, 7.2-7.4 Klein (1/e)...
EXPERIMENT 2A DIELS-ALDER REACTION OF ANTHRACENE REFERENCES Pavia et al (4/e): Tech. 6.1/6.2, 7.2-7.4 Klein (1/e) pp. 784-792 EQUATION heat Diels-Alder Adduct 9,30-dihydroanthracene-9,10- endo-o B-seccinic anhydride mp 262264 PROCEDURE Place 0.200 grams of anthracene and an equal molar amount of maleic anhydride in 5 mL of xylenes in a 10-mL round-bottom flask with a magnetic stir bar. Attach a water-cooled condenser and reflux for 60 minutes. Allow the solution to cool to room temperature and then place the flask in...
numbers 3-5 please Those are the three equations given to us and that is the reaction...
numbers 3-5 please
Those are the three equations given to us and that is the reaction
mechanism as well as the procedure. there is nothing else i can
give you
EXPERIMENT 9: SYNTHESIS OF DIPHENYLACETYLENE Objective: Complete the two-step halogenation/elimination reaction sequence that converts an alkene (trans- stilbene) to an alkyne (diphenylacetylene) 3. Why is it important that the reaction is performed in the presence of a strong base? 4. If the starting mass is 350 mg of stilbene dibromide,...
Experiment 13-Post-Lab Assignment 1. Athletes use cold packs containing ammonium nitrate solutions to ice their injuries....
Experiment 13-Post-Lab Assignment 1. Athletes use cold packs containing ammonium nitrate solutions to ice their injuries. A 1.25 G sample of ammonium nitrate is dissolved in 25.0 mL of water to form a solution. The temperature of the solution falls from 25.8°C to 21.9°C. Find the enthalpy of the reaction (AH ), in kJ/mol. Assume the density of water is 1.00 g/mL and the heat capacity of the total solution to be 4.184 J/g °C 2. Calculate AHⓇ in kJ/mol...
I need help calculating theoretical yield for my Diels-Alder lab experiment. This reaction was between 1,3-butadiene...
I need help calculating theoretical yield for my
Diels-Alder lab experiment. This reaction was between 1,3-butadiene
and maleic anhydride, forming cis 1,2,3,6-tetrahydrophthalic
anhydride. In this experiment 1.0g of maleic anhydride was combined
with 1.8g 3-sulfolene and 2 mL dry xylene and refluxed for 30 mins.
6 mL of xylene was added to dissolve solids and then decanted, then
warm pet. ether was added to form crystalline product after
cooling. some of this info may be irrelevant in what is needed...
Question: In the second laboratory experiment (Day 2), the depolymerization of polyethylene terephthalate (PET) to the...
Question:
In the second laboratory experiment (Day 2), the depolymerization of polyethylene terephthalate (PET) to the monomer terephthalic acid involves hydrolysis-type chemistry. A mechanism for this conversion is shown in Figure 8. The reaction employs potassium hydroxide, which undergoes nucleophilic addition to the PET polymer. The resulting tetrahedral intermediate can collapse with proton transfer to generate an alcohol byproduct and form a new carboxylic acid species. Under the basic reaction conditions, the resulting carboxylic acid undergoes deprotonation to give the...
Data Table 1: Temperature Changes during Mixing of Different Volumes of 0.10 M HCl and 0.10 M NaOH Experiment Number HCI (mL) NaOH (mL) Room Temp (°C) Temp of mix (°C) 100 0 22 22 0 90 10 22 23 1 3 80 20 22 24 2 4 5 70 60 30 40 22 22 26.8 28 4.8 6 6 50 50 22 28 6 7 40 50 22 27 5 8 30 70 22 26 4 9 20 80...
I need help to write a nice introduction for experiment 6
please ( no hands write ) typing
Thank you
HEAT TREATMENT OF STEELS EXPERIMENT 6 EXPERIMENT 6 HEAT TREATMENT OF STEELS THEORY The Effect of Cooling Rate One of the most convenient methods for controlling the properties of a given steel, i.e., a steel whose composition is already fixed, consists of austenizing the steel and ten cooling to room temperature at some predetermined rate. A variation of cooling rates...
really need help as soon as possible please
6. (8 points, 2 points each) Consider the following reaction: Fe304(s) CO(g) + 3 Fe(s). CO2(g) AH +35.9 k) Circle the change expected for each of the following to reestablish equilibrium: a. Add CO2 to the equilibrium mixture form more form more no change products reactants b. Compress the equilibrium mixture at constant temperature. (smaller volume) form more form more no change products reactants c. Heat the equilibrium mixture form more form...
CHEM 008L Lab 8: Diene Halogenations Purpose: In this virtual experiment, you will be investigating the effect of temperature on the addition of hydrochloric acid to 1,3-butadiene. You will be comparing key signals in the 13C NMR spectra of the reactant and product. HCI ci and/or 1,3-butadiene 3-chloro-1-butene 1-chloro-2-butene Figure 8.1 The addition of hydrochloric acid to 1,3-butadiene. Introduction: The 1,3-butadiene (AKA buta-1,3-diene) starting material is a conjugated diene, meaning that the double bonds are separated by only one single...
EXPERIMENT 2A DIELS-ALDER REACTION OF ANTHRACENE REFERENCES Pavia et al (4/e): Tech. 6.1/6.2, 7.2-7.4 Klein (1/e) pp. 784-792 EQUATION heat Diels-Alder Adduct 9,30-dihydroanthracene-9,10- endo-o B-seccinic anhydride mp 262264 PROCEDURE Place 0.200 grams of anthracene and an equal molar amount of maleic anhydride in 5 mL of xylenes in a 10-mL round-bottom flask with a magnetic stir bar. Attach a water-cooled condenser and reflux for 60 minutes. Allow the solution to cool to room temperature and then place the flask in...
numbers 3-5 please
Those are the three equations given to us and that is the reaction
mechanism as well as the procedure. there is nothing else i can
give you
EXPERIMENT 9: SYNTHESIS OF DIPHENYLACETYLENE Objective: Complete the two-step halogenation/elimination reaction sequence that converts an alkene (trans- stilbene) to an alkyne (diphenylacetylene) 3. Why is it important that the reaction is performed in the presence of a strong base? 4. If the starting mass is 350 mg of stilbene dibromide,...
Experiment 13-Post-Lab Assignment 1. Athletes use cold packs containing ammonium nitrate solutions to ice their injuries. A 1.25 G sample of ammonium nitrate is dissolved in 25.0 mL of water to form a solution. The temperature of the solution falls from 25.8°C to 21.9°C. Find the enthalpy of the reaction (AH ), in kJ/mol. Assume the density of water is 1.00 g/mL and the heat capacity of the total solution to be 4.184 J/g °C 2. Calculate AHⓇ in kJ/mol...
I need help calculating theoretical yield for my
Diels-Alder lab experiment. This reaction was between 1,3-butadiene
and maleic anhydride, forming cis 1,2,3,6-tetrahydrophthalic
anhydride. In this experiment 1.0g of maleic anhydride was combined
with 1.8g 3-sulfolene and 2 mL dry xylene and refluxed for 30 mins.
6 mL of xylene was added to dissolve solids and then decanted, then
warm pet. ether was added to form crystalline product after
cooling. some of this info may be irrelevant in what is needed...
Question:
In the second laboratory experiment (Day 2), the depolymerization of polyethylene terephthalate (PET) to the monomer terephthalic acid involves hydrolysis-type chemistry. A mechanism for this conversion is shown in Figure 8. The reaction employs potassium hydroxide, which undergoes nucleophilic addition to the PET polymer. The resulting tetrahedral intermediate can collapse with proton transfer to generate an alcohol byproduct and form a new carboxylic acid species. Under the basic reaction conditions, the resulting carboxylic acid undergoes deprotonation to give the...
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