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Circle the solutions that would be expected to dissolve each! compound....
1. Which of the following make a buffer solution? (circle all the correct answers) a. 0.1...
1. Which of the following make a buffer solution? (circle all the correct answers) a. 0.1 M HCl and 0.1 M NaCl b. 0.1 M HF and 0.075 M KF C. 0.15 M Pentanoic acid and 0.15 M sodium pentanoate d. 0.1 M NaOH and 0.1 M HCI e. 0.1 M acetic acid and 0.00001 sodium acetate 2. Which of the following could make buffer systems when mixed together? (circle the correct answers) a. 0.10 M acetic acid and 0.05...
there is more than one question and more than one part, and i put pictures of the data in there too there...
there is more than one question and more than one part, and i put
pictures of the data in there too
there is more than part and more than one picture
con Experiment 5 Data and Report Name: Charene Lab Section (Day): Wednesday Partner: Troter A. Electrolytes and Nonelectrolytes 1. Classify the substances and solutions as nonelectrolytes (lowest values), weak electrolytes middle values), or strong electrolytes highest values Important: Make sure conductivity meter is set to appropriate sensitivity range. Strong...
please help & explain if possible 52.67 mL of HCI solution is used to titrate 1.5729...
please help & explain if possible
52.67 mL of HCI solution is used to titrate 1.5729 g of potassium carbonate to the endpoint. What is the molarity of the HCl solution? Show your work for full credit. 2 HCl (aq) + K2CO3 (aq) CO2 (g) + H2O (1) + 2 KCl (aq) The HCI (aq) solution is Enter your answer here M
Help sos 1. Show the expected product(s) of the following reactions. For products containin or cis/trar...
Help sos
1. Show the expected product(s) of the following reactions. For products containin or cis/trar asymmetric carbon atoms, indicate relative stereochemistry (syn/anti relationships) and/or whether a racemic mixture is produced. (8 pts each) 1. HNO3, H2so4 NO 2. Fe, HCI OCH3 3. NaNO2 aq. HCI 4, CuCN, Δ сно но 1. Br2 H20 2. Fe SO)S b. HO- -H OH s CH2OH 1. SOCI2 2. NH3 H3C 3. Br2 NaOH, H2O 1. KOH 2. PhCH2CH Br 3. NH2NH2 d....
Please help 2. Two solutions namely, 500 mL of 0.50 M HCl and 500 mL of...
Please help
2. Two solutions namely, 500 mL of 0.50 M HCl and 500 mL of 0.50 M NaOH at the same temperature of 21.6 °C are mixed in a constant-pressure calorimeter. The heat capacity of the calorimeter was 450 J/oC. Given that the specific heat of the solution is 4.184 J/g°C, the density of the solution is 1.00 g/mL, and that the heat of neutralization for the process H* (aq) + OH (aq) -- H2O (1) is -56.2 kJ,...
help please please chemistry REPORT SHEET EXPERIMENT Chemical Equilibrium: 4 Le Châtelier's Principle Part I. Changes...
help please please
chemistry
REPORT SHEET EXPERIMENT Chemical Equilibrium: 4 Le Châtelier's Principle Part I. Changes in Reactant or Product Concentrations A. Copper and Nickel lons Colors: 1. CuSO4(aq) Blue 4. NiCl(aq) Green 2. [Cu(NH3)41+ (aq) Dok Blue 5. [Ni(NH). F+ (aq) Pale upolet 3. After HCI addition 6. After HCl addition Green Explain the effects of NH3(aq) and HCl(aq) on the Cuso, solution in terms of Le Châtelier's principle. 7. What initially forms as pale blue and pale green...
I need help finding calculated pH for part IV and part V please! pKa of acetic...
I need help finding calculated pH for part IV and part V
please!
pKa
of acetic acid= 4.744
su 13.21 Part IV: Dilution of Buffered and Unbuffered Solutions Calculated pH | Calculated ApH Observed pH Observed ApH Number Preparation 15 ml. HC H3O2(aq) 15 ml NaC,HO2(aq) 5 ml Solution 1 25 mL H20 5 ml Solution 2 25 ml H20 4 30 mL HC H2O2(aq) 5 ml Solution 4 25 ml H2O 5 ml Solution 5 25 ml. H2O 4.10...
Please help, I'm so confused!!!! This is due wednesday night!!! i'm gonna fail :(((( pH of...
Please help, I'm so confused!!!! This is due wednesday night!!!
i'm gonna fail :((((
pH of Buffer Solutions Procedure: Acetic Acid-Sodium Acetate Buffer (pKa acetic acid = 4.75) Weigh about 3.5 g of Na2C2H302 3H2O, record the exact mass, and add to a 250 ml beaker. Measure exactly 8.8 mL of 3.0 M acetic acid (use 10 mL grad cylinder) and add to the beaker containing the sodium acetate. • Measure exactly 55.6 mL of distilled water and add to...
3. Compare Solutions 2 and 4. How does the common-ion effect influence the pH of Solution 2? Expl...
help please!!!!
3. Compare Solutions 2 and 4. How does the common-ion effect influence the pH of Solution 2? Explain fully, and calculate the expected pH of these solutions pH calculation for Solution 2 a. pH calculation for Solution 4 Your explanation 4. What would be the pH of solutions 8 and 9? Give a relevant chemical equation and related PH calculation. Compare the calculated value properties of a buffer? eeio Cocal eqatind eld ?5. a. How do Solutions 11...
Please help with 21-25 and explain the answers! 21.-25. Starting with benzene, match each reaction sequence...
Please help with 21-25 and explain the answers!
21.-25. Starting with benzene, match each reaction sequence to a product on the right. Assume any necessary workup. Answers may be repeated. 21. Br/FeBr, a. b. C. , Br/FeBr, HS(CH),SH/HCI, H/Ni d. 25.Zn/HCI, HNO/H.SO, Br/FeBr, H/Pd, NaNO/HCl/cold, H,PO e. not a.-d.
1. Which of the following make a buffer solution? (circle all the correct answers) a. 0.1 M HCl and 0.1 M NaCl b. 0.1 M HF and 0.075 M KF C. 0.15 M Pentanoic acid and 0.15 M sodium pentanoate d. 0.1 M NaOH and 0.1 M HCI e. 0.1 M acetic acid and 0.00001 sodium acetate 2. Which of the following could make buffer systems when mixed together? (circle the correct answers) a. 0.10 M acetic acid and 0.05...
there is more than one question and more than one part, and i put
pictures of the data in there too
there is more than part and more than one picture
con Experiment 5 Data and Report Name: Charene Lab Section (Day): Wednesday Partner: Troter A. Electrolytes and Nonelectrolytes 1. Classify the substances and solutions as nonelectrolytes (lowest values), weak electrolytes middle values), or strong electrolytes highest values Important: Make sure conductivity meter is set to appropriate sensitivity range. Strong...
please help & explain if possible
52.67 mL of HCI solution is used to titrate 1.5729 g of potassium carbonate to the endpoint. What is the molarity of the HCl solution? Show your work for full credit. 2 HCl (aq) + K2CO3 (aq) CO2 (g) + H2O (1) + 2 KCl (aq) The HCI (aq) solution is Enter your answer here M
Help sos
1. Show the expected product(s) of the following reactions. For products containin or cis/trar asymmetric carbon atoms, indicate relative stereochemistry (syn/anti relationships) and/or whether a racemic mixture is produced. (8 pts each) 1. HNO3, H2so4 NO 2. Fe, HCI OCH3 3. NaNO2 aq. HCI 4, CuCN, Δ сно но 1. Br2 H20 2. Fe SO)S b. HO- -H OH s CH2OH 1. SOCI2 2. NH3 H3C 3. Br2 NaOH, H2O 1. KOH 2. PhCH2CH Br 3. NH2NH2 d....
Please help
2. Two solutions namely, 500 mL of 0.50 M HCl and 500 mL of 0.50 M NaOH at the same temperature of 21.6 °C are mixed in a constant-pressure calorimeter. The heat capacity of the calorimeter was 450 J/oC. Given that the specific heat of the solution is 4.184 J/g°C, the density of the solution is 1.00 g/mL, and that the heat of neutralization for the process H* (aq) + OH (aq) -- H2O (1) is -56.2 kJ,...
help please please
chemistry
REPORT SHEET EXPERIMENT Chemical Equilibrium: 4 Le Châtelier's Principle Part I. Changes in Reactant or Product Concentrations A. Copper and Nickel lons Colors: 1. CuSO4(aq) Blue 4. NiCl(aq) Green 2. [Cu(NH3)41+ (aq) Dok Blue 5. [Ni(NH). F+ (aq) Pale upolet 3. After HCI addition 6. After HCl addition Green Explain the effects of NH3(aq) and HCl(aq) on the Cuso, solution in terms of Le Châtelier's principle. 7. What initially forms as pale blue and pale green...
I need help finding calculated pH for part IV and part V
please!
pKa
of acetic acid= 4.744
su 13.21 Part IV: Dilution of Buffered and Unbuffered Solutions Calculated pH | Calculated ApH Observed pH Observed ApH Number Preparation 15 ml. HC H3O2(aq) 15 ml NaC,HO2(aq) 5 ml Solution 1 25 mL H20 5 ml Solution 2 25 ml H20 4 30 mL HC H2O2(aq) 5 ml Solution 4 25 ml H2O 5 ml Solution 5 25 ml. H2O 4.10...
Please help, I'm so confused!!!! This is due wednesday night!!!
i'm gonna fail :((((
pH of Buffer Solutions Procedure: Acetic Acid-Sodium Acetate Buffer (pKa acetic acid = 4.75) Weigh about 3.5 g of Na2C2H302 3H2O, record the exact mass, and add to a 250 ml beaker. Measure exactly 8.8 mL of 3.0 M acetic acid (use 10 mL grad cylinder) and add to the beaker containing the sodium acetate. • Measure exactly 55.6 mL of distilled water and add to...
help please!!!!
3. Compare Solutions 2 and 4. How does the common-ion effect influence the pH of Solution 2? Explain fully, and calculate the expected pH of these solutions pH calculation for Solution 2 a. pH calculation for Solution 4 Your explanation 4. What would be the pH of solutions 8 and 9? Give a relevant chemical equation and related PH calculation. Compare the calculated value properties of a buffer? eeio Cocal eqatind eld ?5. a. How do Solutions 11...
Please help with 21-25 and explain the answers!
21.-25. Starting with benzene, match each reaction sequence to a product on the right. Assume any necessary workup. Answers may be repeated. 21. Br/FeBr, a. b. C. , Br/FeBr, HS(CH),SH/HCI, H/Ni d. 25.Zn/HCI, HNO/H.SO, Br/FeBr, H/Pd, NaNO/HCl/cold, H,PO e. not a.-d.
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