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O mL QUESTION 17 After substituting the variables absorbance (A) and concentration (c) into the equation...
QUESTION 1 Looking at equation 1. (Absorbance = a*b*Concentration) if we know that the path length...
QUESTION 1 Looking at equation 1. (Absorbance = a*b*Concentration) if we know that the path length (b) is one, then we should plot concentre x -axis (x or y) and plot absorbance on they -axis (x or y). You should prepare a calibrati for absorbance vs concentration on pg 121. QUESTION 2 Using the fact that at 0.10 M, the absorbance was 0.357, and at 0.20 M, the absorbance was 0.714, the absorptivity (slope) is |(answer to 2 dec places)....
Solve best-fit equation to derive an expression to convert absorbance values to concentrations Solve the best...
Solve best-fit equation to derive an expression to convert
absorbance values to concentrations
Solve the best-fit equation you recorded in question 1, step c for "[dye)," to derive an expression to convert absorbance values to concentrations. Show your work below: Equation: 141986x +1.08 LALEI I piot absorbance (y-axis) versus concentration (x-axis) for the standard dye solutions from Table 7.8. Find the linear least-squares line describing the data. Do not force the y-intercept to be zero. c Write the equation and...
please help with question 1 and 3 part c Name: 8 9 Lab Section: 7 Pre-lab: The Concentration of Riboflavin 1. The gi...
please help with question 1 and 3 part c
Name: 8 9 Lab Section: 7 Pre-lab: The Concentration of Riboflavin 1. The given absorbance spectrum is recorded for a dye. Which is the most likely color of this dye? a. Blue-green b. Colorless c. Red d. Black M stock solution is diluted to 10.00 ml, what is the final 2. IF 4.00 ml of a 5.00 X 10 concentration? 3. The absorbance of known concentrations of blue food dye were...
QUESTION 17 The drug is labeled 50 mEq in 15 mL. Prepare a dose of 90...
QUESTION 17 The drug is labeled 50 mEq in 15 mL. Prepare a dose of 90 mEq. TTT Arial : 3 (12pt) T. . . . Path:p QUESTION 18 The drug is labeled 80 mg in 4 mL. The order is for 120 mg. TTT Arial 3 (121) • T. -E . Click Save and Suburnt to save and submit. Click Save All Answers to save all ans . 90 * w QUESTION 19 The label reads 20 mg in...
QUESTION 17 7(2x + 1) = 12x + 3 + 2x is an equation with infinitely...
QUESTION 17 7(2x + 1) = 12x + 3 + 2x is an equation with infinitely many solutions. True False QUESTION 18 8x + 9 - 25 is an identity. True False QUESTION 19 3,4,6,9,13,18... is an arithmetic sequence True False QUESTION 20 The 100th term in the sequence abcdabedabedabed... is a b. Click Save and Submit to save and submit. Click Save All Answers to save all answers
Question 5 1 pts Keep in mind that the absorbance was plotted on the y-axis and...
Question 5 1 pts Keep in mind that the absorbance was plotted on the y-axis and concentration of Fe in mg/mL was plotted on x-axis to get best-fit line equation from the standard solutions. If the best fit line equation is y = 100x +0.01 What is the Fe concentration in mg/mL if the absorbance is 0.4 based on the best-fit line equation? Keep two sig figs for your answer. The Total Cereal has a Fe concentration of 0.6 g...
Could you please help me to solve these question with all parts, including graph? thanks so...
Could you please help me to solve these question with all
parts, including graph? thanks so much!!
We were unable to transcribe this imagenumber of drops volume of solution, mL concentration, drops mL-1 (Eq. 6) For example, if the solution you use to determine the spectrum of the food dye, which we shall call "Solution 1," was prepared by adding 1 drop of food dye to 40.0 mL of distilled water, the concentration of the solution is found using Equation...
QUESTION 12 Sulfur dioxide gas contributes to acid rain. The concentration of SO2(g) in air can...
QUESTION 12 Sulfur dioxide gas contributes to acid rain. The concentration of SO2(g) in air can be determined by dissolving the SO2(g) in water and then titrating the solution produced with a standard solution of potassium permanganate, KMNO4(aq). If a 150 mL sample of SO2(aq) required 31.5 mL of 0.0100 mol/L of KMnO4(aq) to react, what is the concentration of SO2(aq) in the sample? (5 marks) The unbalanced reaction is: SO2(g) + MnO4 (aq) → S042 (aq) + Mn2+(aq) TTT...
i need help on both LUIUS. Question Completion Status: QUESTION 21 A 35.0 mL sample of...
i need help on both
LUIUS. Question Completion Status: QUESTION 21 A 35.0 mL sample of 0.180 M benzoic acid is titrated with a 0.180 M NaOH solution. What is the pH at the equivalence point? The Ka of benzoic acid is 6.3 10-5 11.20 9.80 4.20 08.58 7.00 QUESTION 22 A 25.0-ml sample of 0.150 M hydrocyanic acid (HCN) is titrated with a 0.150 M NaOH solution. What is the pH after 13 ml NaOH has been added? The...
Question Completion Status: QUESTION 9 Solve for r in the following equation: O A. OB. ОС....
Question Completion Status: QUESTION 9 Solve for r in the following equation: O A. OB. ОС. 3 V 3 D 3 V Click Save and Submit to sqve and submit. Click Save All Answer 8,734 30
QUESTION 1 Looking at equation 1. (Absorbance = a*b*Concentration) if we know that the path length (b) is one, then we should plot concentre x -axis (x or y) and plot absorbance on they -axis (x or y). You should prepare a calibrati for absorbance vs concentration on pg 121. QUESTION 2 Using the fact that at 0.10 M, the absorbance was 0.357, and at 0.20 M, the absorbance was 0.714, the absorptivity (slope) is |(answer to 2 dec places)....
Solve best-fit equation to derive an expression to convert
absorbance values to concentrations
Solve the best-fit equation you recorded in question 1, step c for "[dye)," to derive an expression to convert absorbance values to concentrations. Show your work below: Equation: 141986x +1.08 LALEI I piot absorbance (y-axis) versus concentration (x-axis) for the standard dye solutions from Table 7.8. Find the linear least-squares line describing the data. Do not force the y-intercept to be zero. c Write the equation and...
please help with question 1 and 3 part c
Name: 8 9 Lab Section: 7 Pre-lab: The Concentration of Riboflavin 1. The given absorbance spectrum is recorded for a dye. Which is the most likely color of this dye? a. Blue-green b. Colorless c. Red d. Black M stock solution is diluted to 10.00 ml, what is the final 2. IF 4.00 ml of a 5.00 X 10 concentration? 3. The absorbance of known concentrations of blue food dye were...
QUESTION 17 The drug is labeled 50 mEq in 15 mL. Prepare a dose of 90 mEq. TTT Arial : 3 (12pt) T. . . . Path:p QUESTION 18 The drug is labeled 80 mg in 4 mL. The order is for 120 mg. TTT Arial 3 (121) • T. -E . Click Save and Suburnt to save and submit. Click Save All Answers to save all ans . 90 * w QUESTION 19 The label reads 20 mg in...
QUESTION 17 7(2x + 1) = 12x + 3 + 2x is an equation with infinitely many solutions. True False QUESTION 18 8x + 9 - 25 is an identity. True False QUESTION 19 3,4,6,9,13,18... is an arithmetic sequence True False QUESTION 20 The 100th term in the sequence abcdabedabedabed... is a b. Click Save and Submit to save and submit. Click Save All Answers to save all answers
Question 5 1 pts Keep in mind that the absorbance was plotted on the y-axis and concentration of Fe in mg/mL was plotted on x-axis to get best-fit line equation from the standard solutions. If the best fit line equation is y = 100x +0.01 What is the Fe concentration in mg/mL if the absorbance is 0.4 based on the best-fit line equation? Keep two sig figs for your answer. The Total Cereal has a Fe concentration of 0.6 g...
Could you please help me to solve these question with all
parts, including graph? thanks so much!!
We were unable to transcribe this imagenumber of drops volume of solution, mL concentration, drops mL-1 (Eq. 6) For example, if the solution you use to determine the spectrum of the food dye, which we shall call "Solution 1," was prepared by adding 1 drop of food dye to 40.0 mL of distilled water, the concentration of the solution is found using Equation...
QUESTION 12 Sulfur dioxide gas contributes to acid rain. The concentration of SO2(g) in air can be determined by dissolving the SO2(g) in water and then titrating the solution produced with a standard solution of potassium permanganate, KMNO4(aq). If a 150 mL sample of SO2(aq) required 31.5 mL of 0.0100 mol/L of KMnO4(aq) to react, what is the concentration of SO2(aq) in the sample? (5 marks) The unbalanced reaction is: SO2(g) + MnO4 (aq) → S042 (aq) + Mn2+(aq) TTT...
i need help on both
LUIUS. Question Completion Status: QUESTION 21 A 35.0 mL sample of 0.180 M benzoic acid is titrated with a 0.180 M NaOH solution. What is the pH at the equivalence point? The Ka of benzoic acid is 6.3 10-5 11.20 9.80 4.20 08.58 7.00 QUESTION 22 A 25.0-ml sample of 0.150 M hydrocyanic acid (HCN) is titrated with a 0.150 M NaOH solution. What is the pH after 13 ml NaOH has been added? The...
Question Completion Status: QUESTION 9 Solve for r in the following equation: O A. OB. ОС. 3 V 3 D 3 V Click Save and Submit to sqve and submit. Click Save All Answer 8,734 30
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