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answer number 5Homework Answers
As the acid solution contains HCl, white precipitaion of AgCl will occur with addition of AgNO3 to the solution. From that any conclusion can't be drawn if the compound is soluble or not.
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answer number 5
5. The AgNO3 test solution was not used to test the water...
Part C. Benedict's Test. Test Tube Samp Prediction Observations Results (+ or -) 2-hydroxybutanal Benzaldehyde Propanone...
Part C. Benedict's Test. Test Tube Samp Prediction Observations Results (+ or -) 2-hydroxybutanal Benzaldehyde Propanone Cyclohexanone Unknown Part D. Iodoform Test. Test Sample Tube 1 2-hydroxybutanal Prediction Observations Results (+ or -) Benzaldehyde Propanone Cyclohexanone Unknown Experiment 12 Identification of Aldehydes and Ketones O the b e t theader of each holding your breath as a st beward your nose. Record the derson the specified memes from O Ta Test g shes between ones that contain a methyl group...
5. Why does benzene float on water? 6. What is the meaning of a boiling point?...
5. Why does benzene float on water? 6. What is the meaning of a boiling point? Provide a scientific definition. 7. What does anion mean? 8. The insoluble compound (the white ppt) resulted from testing for SO4-2 ion is ------------------------- 9. The gas bubbles that are produced when adding HCl to a solution that contains CO3-2 represents the formation of ______________. 10. When a solution of Cl- ion is mixed with a solution of AgNO3 (in acidic environment), what is...
Identify an unknown solution (1, 2, 3 and 4) and fill the vacancies in the table...
Identify an unknown solution (1, 2, 3 and 4) and fill
the vacancies in the table
Procedure
The unknown solutions are : HCl, NaOH,
Acetic acid, Na2CO3
Test each solution with litmus paper. Record the results in the
data table below.
Take little of each solution in a test tube and add 5 drops of
silver nitrate to each solution. Record the results in the data
table.
Take little of each solution in a test tube and add two drops...
PART B The operations in this part will take place in the hood. To avoid traffic...
PART B The operations in this part will take place in the hood. To avoid traffic problems, plan ahead and work efficiently to occupy the hood for a minimal time. After making a set of test tube additions, step back to mix the tubes and allow others to have access to the materials. Clean and rinse the four-inch (small) and six-inch (medium) test tubes from your drawer. Use three of the four-inch tubes to observe the colors of the halogen...
Show Calculation of % ethanol in each tube below. A. Preparation of Standards (4.5pt) # %(v/v)...
Show Calculation of % ethanol in each tube below.
A. Preparation of Standards (4.5pt) # %(v/v) Tube Ethanol Observations after heating Oil. turned light orange. LOL turned light orange 2.04. turned burnt orange 3.0% turned dark Yellow green 4.01. turned light green 5.01. turned dark blue igreen 6.07 turned light blue 7.01 turned light blue 8.07. turned light blue Show calculation of %(v/v) ethanol in each tube below (2.25pt): PROCEDURE: NOTES: Follow all standard safety precautions. Discard all waste into...
The concentration of a diluted "wine" sample was found to be 0.32 %(v/v) ethanol. Assuming the...
The concentration of a diluted
"wine" sample was found to be 0.32 %(v/v) ethanol. Assuming the
dilution was done as described in Part B of the procedure for this
lab, what was the original concentration of ethanol in the "wine"?
Enter your answer with 2 significant figures.
B. Preparation of Unknown Samples 1. Label two small test tubes "wine" and "breath”. 2. Use a disposable pipette, add 1.0 mL (25 drops) of “wine” solution to the wine test tube. a....
Measurement and Accuracy Procedure Obtain 5 large test tubes (all the same size), a test tube...
Measurement and Accuracy Procedure Obtain 5 large test tubes (all the same size), a test tube rack, 3 beakers of colored water A-C, and 3 graduated cylinders. With a Sharpie, label the tubes 1-5 Measure 25 mL of solution from beaker A (red) using a clean graduated cylinder. Pour into tube 1. Measure 28 mL of solution from beaker B (yellow) using a clean graduated cylinder. Pour into tube 3. Measure 22 mL of solution from beaker C (blue) using...
acid solution What is the concen 4. You are titrating an acid into a base to...
acid solution What is the concen 4. You are titrating an acid into a base to determine the concentration of the base. The endpoint of the neutralization is reached but the stopcock on the buret sticks slightly and allows a few more drops of acid to fall into the solution. How will this affect your calculations for the concentration of the base? 5. A student carefully pipets 250 ml of 0.525 MNOH to a test tube. She places the test...
1. Write the chemical formulas for all the barium salts that can be formed in Part...
1. Write the chemical formulas for all the barium salts that can be formed in Part 1 Part 1A: Solubility of barium salts under neutral conditions 1. Using a clean disposable pipet, transfer 1 mL of Co-anion solution to a clean test tube and label the test as "Co?- neutral". Repeat this for the remaining anion solutions S0?-?,P03-?, NO3",C1-7,7- 'so that you will have six test tubes with six unique anion solutions. Use a different pipet for each anion solution,...
Identify an unknown solution (1, 2, 3 and 4) and fill the vacancies in the table...
Identify an unknown solution (1, 2, 3 and 4) and fill the vacancies in the table Procedure The unknown solutions are : HCI, NaOH, Acetic acid, Na2CO3 1- Test each solution with litmus paper. Record the results in the data table below. 2- Take little of each solution in a test tube and add 5 drops of silver nitrate to each solution. Record the results in the data table. 3- Take little of each solution in a test tube and...
Part C. Benedict's Test. Test Tube Samp Prediction Observations Results (+ or -) 2-hydroxybutanal Benzaldehyde Propanone Cyclohexanone Unknown Part D. Iodoform Test. Test Sample Tube 1 2-hydroxybutanal Prediction Observations Results (+ or -) Benzaldehyde Propanone Cyclohexanone Unknown Experiment 12 Identification of Aldehydes and Ketones O the b e t theader of each holding your breath as a st beward your nose. Record the derson the specified memes from O Ta Test g shes between ones that contain a methyl group...
Identify an unknown solution (1, 2, 3 and 4) and fill
the vacancies in the table
Procedure
The unknown solutions are : HCl, NaOH,
Acetic acid, Na2CO3
Test each solution with litmus paper. Record the results in the
data table below.
Take little of each solution in a test tube and add 5 drops of
silver nitrate to each solution. Record the results in the data
table.
Take little of each solution in a test tube and add two drops...
PART B The operations in this part will take place in the hood. To avoid traffic problems, plan ahead and work efficiently to occupy the hood for a minimal time. After making a set of test tube additions, step back to mix the tubes and allow others to have access to the materials. Clean and rinse the four-inch (small) and six-inch (medium) test tubes from your drawer. Use three of the four-inch tubes to observe the colors of the halogen...
Show Calculation of % ethanol in each tube below.
A. Preparation of Standards (4.5pt) # %(v/v) Tube Ethanol Observations after heating Oil. turned light orange. LOL turned light orange 2.04. turned burnt orange 3.0% turned dark Yellow green 4.01. turned light green 5.01. turned dark blue igreen 6.07 turned light blue 7.01 turned light blue 8.07. turned light blue Show calculation of %(v/v) ethanol in each tube below (2.25pt): PROCEDURE: NOTES: Follow all standard safety precautions. Discard all waste into...
The concentration of a diluted
"wine" sample was found to be 0.32 %(v/v) ethanol. Assuming the
dilution was done as described in Part B of the procedure for this
lab, what was the original concentration of ethanol in the "wine"?
Enter your answer with 2 significant figures.
B. Preparation of Unknown Samples 1. Label two small test tubes "wine" and "breath”. 2. Use a disposable pipette, add 1.0 mL (25 drops) of “wine” solution to the wine test tube. a....
acid solution What is the concen 4. You are titrating an acid into a base to determine the concentration of the base. The endpoint of the neutralization is reached but the stopcock on the buret sticks slightly and allows a few more drops of acid to fall into the solution. How will this affect your calculations for the concentration of the base? 5. A student carefully pipets 250 ml of 0.525 MNOH to a test tube. She places the test...
1. Write the chemical formulas for all the barium salts that can be formed in Part 1 Part 1A: Solubility of barium salts under neutral conditions 1. Using a clean disposable pipet, transfer 1 mL of Co-anion solution to a clean test tube and label the test as "Co?- neutral". Repeat this for the remaining anion solutions S0?-?,P03-?, NO3",C1-7,7- 'so that you will have six test tubes with six unique anion solutions. Use a different pipet for each anion solution,...
Identify an unknown solution (1, 2, 3 and 4) and fill the vacancies in the table Procedure The unknown solutions are : HCI, NaOH, Acetic acid, Na2CO3 1- Test each solution with litmus paper. Record the results in the data table below. 2- Take little of each solution in a test tube and add 5 drops of silver nitrate to each solution. Record the results in the data table. 3- Take little of each solution in a test tube and...
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