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Concentration (M) of starting solution % Transmittance, %T, (Blank) % T (15-mL 0.024...
The following information is given : Concentration (M) of starting solution: 0.024 % Transmittance, %T, (Blank)...
The following information is given : Concentration (M) of starting solution: 0.024 % Transmittance, %T, (Blank) : 98.6 % T (15-mL 0.024 M Cu2+ + 7 mL conc NH3 diluted with distilled H2O to 100 mL total volume):63.9 % T (15-mL Unknown Cu2+ solution + 7 mL conc NH3 diluted with distilled H2O to 100 mL total volume) :38.6 I need to find the following: Absorbance (blank) : Absorbance (15- mL Dilution ) : Ratio M/A (use 0.024 M as...
BELOW I ATTACHED A OVERVIEW OF FORMULAS SHOW ALL WORK IN DETAIL. NEED ANSWERS ASAP Concentration...
BELOW I ATTACHED A OVERVIEW OF FORMULAS
SHOW ALL WORK IN DETAIL. NEED ANSWERS
ASAP
Concentration (M) of starting solution .024 1st Reading 2nd Reading Abs (15-mL .024 M Cu2+ + 7 mL conc NH3 diluted with distilled H2O to 100 mL total volume) 0.861 0.941 Abs (5-mL .024 M Cu2+ + 7 mL conc NH3 diluted with distilled H2O to 100 mL total volume) 0.541 0.518 Abs (15-mL Unknown Cu2+ solution + 7 mL conc NHz diluted with distilled...
LAB DATA The lab data shown below reflects what you would have collected during lab on...
LAB DATA The lab data shown below reflects what you would have collected during lab on campus. Use this "virtual lab data" to complete the calculations in this lab. Concentration (M) of starting solution .024 1st Reading 2nd Reading Abs (15-mL .024 M Cu2+ + 7 mL conc NH, diluted with distilled H 0 to 100 mL total volume) 0.945 0.923 Abs (5-mL .024 M Cu2+ + 7 mL conc NH, diluted with distilled H,0 to 100 mL total volume)...
help please More Information on submitting your Lab Report LAB DATA Concentration (M) of starting solution...
help please
More Information on submitting your Lab Report LAB DATA Concentration (M) of starting solution Transmittance, T. (Blank) T (15 . 0.034 MOP. 7 .com NH, diluted with distilled H 0 to 100 ml. volume) T(15 ml. Unknown CT solution + 7 ml. come NH, diluted with distilled H 0 to 100 ml. total volume) LAB CALCULATIONS Absorbance (15-ml. Dilution) Ratio M/A (use 0.004 M as the given M) for the 15-ml. Dilution Absorbance of Unknown (Is Dilution) Molarity...
Is your unknown more, less, or the same concentration as the standard? Explain using %T and/or...
Is your unknown more, less, or the same concentration as
the standard? Explain using %T and/or Absorbance.
LAB DATA Enter Lab Data before leaving lab 1 Click the Next Problem button. 2. Enter data in the 1" text box and click the Submit Data button. text boxes. Enter data in the dlick the Submit Data button. Concentration (M) of starting solution 0024 1st Reading 2nd Reading % Transmittance. %T . ( Blank ) 97.2 %T ( 15-mL 0.024 M Cu+7...
Question 1 20 pts Please prepare 20 mL of 0.2 M NaOH, given a stock solution of 0.6 M NaOH. State...
Question 1 20 pts Please prepare 20 mL of 0.2 M NaOH, given a stock solution of 0.6 M NaOH. State the precise amount of the 0.6 M NaOH used and the amount of diluent (H2O) added Question 2 20 pts Please prepare 500 mL of a 1/100 dilution of serum from a tube with a 1/10O dilution of serum. Please state the volume of the 1/10 dilution of serum used and the volume of diluents (H2O) used 20 pts...
Use these 2 reactions to answer Question 4: 2Cu2+ + 4KI → 2CuI + I2 + 4K+ (rxn 1) I2 + 2Na2S2O3 → 2NaI + Na2S4O6 (rxn 2) For rxn 1, 10.0 mL of a Cu2+ solution of unknown concentration was placed in...
Use these 2 reactions to answer Question 4: 2Cu2+ + 4KI → 2CuI + I2 + 4K+ (rxn 1) I2 + 2Na2S2O3 → 2NaI + Na2S4O6 (rxn 2) For rxn 1, 10.0 mL of a Cu2+ solution of unknown concentration was placed in a 250 mL Erlenmeyer flask. An excess of KI solution was added. Indicator was added and the solution was diluted with H2O to a total volume of 75 mL. For rxn 2, the solution from rxn 1...
the molar absorptivity of the copper complex in chloroform at 436.0nm is 13,000 M-1 cm-1 which...
the molar absorptivity of the copper complex in chloroform at
436.0nm is 13,000 M-1 cm-1 which is useful
for the determination of Cu2+ concentrations as low as
10-6g/ml.
III. Interpretation of Results (a) Calibration curve Calculate the Cu2+ concentration of each standard solution in ug/mL (ug = 100 gram). Alternatively, ug/mL = ppm (part per million). Plot the net absorbance (= absorbance of standard - absorbance of blank) versus the concentration of each standard solution. sample volume 0 absorbance 0.061...
Advance Study Assignment: Molar Mass of an Unknown Acid 1. 7.0 mL of 6.0 M NaOH...
Advance Study Assignment: Molar Mass of an Unknown Acid 1. 7.0 mL of 6.0 M NaOH are diluted with water to a volume of 400 mL. We are asked to find the molarity of the resulting solution. a. First find out how many moles of NaOH there are in 7.0 mL of 6.0 M NaOH. Use Equation 1. Note that the volume must be in liters. moles b. Since the total number of moles of NaOH is not changed on...
Pour 2.5 mL of the 1M glucose (C6H12O6) solution from the flask into the 100 mL...
Pour 2.5 mL of the 1M glucose (C6H12O6) solution from the flask into the 100 mL volumetric flask. Use the “dilution equation” to determine the volume in mL for the required 0.025M solution, given that the original solution is 1M and you used 2.5 mL Fill the volumetric flask to the 100 mL mark with distilled water. Note: The flask already contains a volume of 2.5 mL. 1. Compute the volume of the diluted 0.025 M solution. 2. What volume...
BELOW I ATTACHED A OVERVIEW OF FORMULAS
SHOW ALL WORK IN DETAIL. NEED ANSWERS
ASAP
Concentration (M) of starting solution .024 1st Reading 2nd Reading Abs (15-mL .024 M Cu2+ + 7 mL conc NH3 diluted with distilled H2O to 100 mL total volume) 0.861 0.941 Abs (5-mL .024 M Cu2+ + 7 mL conc NH3 diluted with distilled H2O to 100 mL total volume) 0.541 0.518 Abs (15-mL Unknown Cu2+ solution + 7 mL conc NHz diluted with distilled...
LAB DATA The lab data shown below reflects what you would have collected during lab on campus. Use this "virtual lab data" to complete the calculations in this lab. Concentration (M) of starting solution .024 1st Reading 2nd Reading Abs (15-mL .024 M Cu2+ + 7 mL conc NH, diluted with distilled H 0 to 100 mL total volume) 0.945 0.923 Abs (5-mL .024 M Cu2+ + 7 mL conc NH, diluted with distilled H,0 to 100 mL total volume)...
help please
More Information on submitting your Lab Report LAB DATA Concentration (M) of starting solution Transmittance, T. (Blank) T (15 . 0.034 MOP. 7 .com NH, diluted with distilled H 0 to 100 ml. volume) T(15 ml. Unknown CT solution + 7 ml. come NH, diluted with distilled H 0 to 100 ml. total volume) LAB CALCULATIONS Absorbance (15-ml. Dilution) Ratio M/A (use 0.004 M as the given M) for the 15-ml. Dilution Absorbance of Unknown (Is Dilution) Molarity...
Is your unknown more, less, or the same concentration as
the standard? Explain using %T and/or Absorbance.
LAB DATA Enter Lab Data before leaving lab 1 Click the Next Problem button. 2. Enter data in the 1" text box and click the Submit Data button. text boxes. Enter data in the dlick the Submit Data button. Concentration (M) of starting solution 0024 1st Reading 2nd Reading % Transmittance. %T . ( Blank ) 97.2 %T ( 15-mL 0.024 M Cu+7...
Question 1 20 pts Please prepare 20 mL of 0.2 M NaOH, given a stock solution of 0.6 M NaOH. State the precise amount of the 0.6 M NaOH used and the amount of diluent (H2O) added Question 2 20 pts Please prepare 500 mL of a 1/100 dilution of serum from a tube with a 1/10O dilution of serum. Please state the volume of the 1/10 dilution of serum used and the volume of diluents (H2O) used 20 pts...
the molar absorptivity of the copper complex in chloroform at
436.0nm is 13,000 M-1 cm-1 which is useful
for the determination of Cu2+ concentrations as low as
10-6g/ml.
III. Interpretation of Results (a) Calibration curve Calculate the Cu2+ concentration of each standard solution in ug/mL (ug = 100 gram). Alternatively, ug/mL = ppm (part per million). Plot the net absorbance (= absorbance of standard - absorbance of blank) versus the concentration of each standard solution. sample volume 0 absorbance 0.061...
Advance Study Assignment: Molar Mass of an Unknown Acid 1. 7.0 mL of 6.0 M NaOH are diluted with water to a volume of 400 mL. We are asked to find the molarity of the resulting solution. a. First find out how many moles of NaOH there are in 7.0 mL of 6.0 M NaOH. Use Equation 1. Note that the volume must be in liters. moles b. Since the total number of moles of NaOH is not changed on...
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