Consider the following gas chromatography data. Calibration Analysis area of standard 23849 area of analyte 14146 concentration of standard 14.67 ppm concentration of analyte 10.63 ppm Unknown Analysis area of standard 20384 area of analyte 16809 concentration of standard 14.67 ppm concentration of analyte ? ppm What is the value of the response factor, F? F = Signal analyte lanalutal F( (answer using 3 significant figures) Signal standard Istandard
Consider the following gas chromatography data. Calibration Analysis area of standard 23849 area of analyte 14146 concentration of standard 14.67 ppm concentration of analyte 10.63 ppm Unknown Analysis area of standard 20384 area of analyte 16809 concentration of standard 14.67 ppm concentration of analyte ? ppm What is the value of the response factor, F? F = Signal analyte lanalutal F( (answer using 3 significant figures) Signal standard Istandard
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Question
Find the initial concentration of the unknown.
Chromotography graph:
What is the value of the response factor, F?
What is the concentration of the analyte in the unknown?
![Consider the following gas chromatography data.
**Calibration Analysis**
| | |
|---------------------------|---------|
| area of standard | 23849 |
| area of analyte | 14146 |
| concentration of standard | 14.67 ppm |
| concentration of analyte | 10.63 ppm |
**Unknown Analysis**
| | |
|---------------------------|---------|
| area of standard | 20384 |
| area of analyte | 16809 |
| concentration of standard | 14.67 ppm |
| concentration of analyte | ? ppm |
What is the value of the response factor, F?
\( F = \_\_\_\_ \) (answer using 3 significant figures)
\[
\frac{{\text{Signal}_{\text{analyte}}}}{{\text{analyte}}} = F \left( \frac{{\text{Signal}_{\text{standard}}}}{{\text{standard}}} \right)
\]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F326343de-5c03-41d8-8333-9305c05187b1%2F7455198a-205c-496f-acfe-c78d06d14466%2F6qgkkbk_processed.png&w=3840&q=75)
Transcribed Image Text:Consider the following gas chromatography data.
**Calibration Analysis**
| | |
|---------------------------|---------|
| area of standard | 23849 |
| area of analyte | 14146 |
| concentration of standard | 14.67 ppm |
| concentration of analyte | 10.63 ppm |
**Unknown Analysis**
| | |
|---------------------------|---------|
| area of standard | 20384 |
| area of analyte | 16809 |
| concentration of standard | 14.67 ppm |
| concentration of analyte | ? ppm |
What is the value of the response factor, F?
\( F = \_\_\_\_ \) (answer using 3 significant figures)
\[
\frac{{\text{Signal}_{\text{analyte}}}}{{\text{analyte}}} = F \left( \frac{{\text{Signal}_{\text{standard}}}}{{\text{standard}}} \right)
\]
![**Fixed (constant) Final Volume Standard Additions**
| Flask | Volume Standard Added (mL) | Volume Unknown Added (mL) | Total Volume (mL) | Final Concentration of Standard (ppm) |
|-------|----------------------------|---------------------------|-------------------|--------------------------------------|
| 1 | 0 | 93.00 | 100 | 0 |
| 2 | 1 | 93.00 | 100 | 20 |
| 3 | 2 | 93.00 | 100 | 40 |
| 4 | 3 | 93.00 | 100 | 60 |
| 5 | 4 | 93.00 | 100 | 80 |
The initial concentration of the standard was 2000 ppm.
The volume of unknown added to each flask was 93.00 mL.
The best fit line has a slope of 5.03 counts/ppm and an intercept of 258.1 counts.
**Graph Description:**
- The graph plots [standard]ₗₒᵤₜ (ppm) on the x-axis ranging from -60 to 90.
- The y-axis represents Signal (counts) ranging from 0 to 800.
- The data points form a straight line starting near the origin, increasing steadily with a positive slope.
- A best-fit line through these points illustrates the linear relationship, with visible data points around it.
**Question:**
Find the initial concentration of the unknown.
- a. 47.72 ppm
- b. 55.17 ppm
- c. 50.00 ppm
- d. 51.31 ppm](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F326343de-5c03-41d8-8333-9305c05187b1%2F7455198a-205c-496f-acfe-c78d06d14466%2Fael0hna_processed.png&w=3840&q=75)
Transcribed Image Text:**Fixed (constant) Final Volume Standard Additions**
| Flask | Volume Standard Added (mL) | Volume Unknown Added (mL) | Total Volume (mL) | Final Concentration of Standard (ppm) |
|-------|----------------------------|---------------------------|-------------------|--------------------------------------|
| 1 | 0 | 93.00 | 100 | 0 |
| 2 | 1 | 93.00 | 100 | 20 |
| 3 | 2 | 93.00 | 100 | 40 |
| 4 | 3 | 93.00 | 100 | 60 |
| 5 | 4 | 93.00 | 100 | 80 |
The initial concentration of the standard was 2000 ppm.
The volume of unknown added to each flask was 93.00 mL.
The best fit line has a slope of 5.03 counts/ppm and an intercept of 258.1 counts.
**Graph Description:**
- The graph plots [standard]ₗₒᵤₜ (ppm) on the x-axis ranging from -60 to 90.
- The y-axis represents Signal (counts) ranging from 0 to 800.
- The data points form a straight line starting near the origin, increasing steadily with a positive slope.
- A best-fit line through these points illustrates the linear relationship, with visible data points around it.
**Question:**
Find the initial concentration of the unknown.
- a. 47.72 ppm
- b. 55.17 ppm
- c. 50.00 ppm
- d. 51.31 ppm
Expert Solution
Step 1
The formula used to find response factor is:
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