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wu 3. sose+12 s- of woan aa solute n yls-L.ueltni 2ed ruter a) Describe how you...
I. If a solution absorbed violet light, what color would the solution appear to be? Hint:...
I. If a solution absorbed violet light, what color would the solution appear to be? Hint: 1. Calculate the concentration of a solution prepared by adding 15.00 mL of 1.92 x 10-3 M KMnO, from a buret into a 50.00 mL volumetric flask, which is then filled to the 50.00 mL graduation mark with distilled water. Hint: 2. A linear standard curve of KMnO4 is prepared from a set of standard solutions by plotting absorbance (y) vs. concentration (x). Use...
3. Suppose that an unknown sample is analyzed spectrophotometrically at the same wavelength that was used...
3. Suppose that an unknown sample is analyzed
spectrophotometrically at the same wavelength that was used for the
standard curve and the absorbance was found to be 0.196. Use the
standard curve to find the concentration of the unknown.
1. Calculate the concentration of a solution prepared by adding 15.00 mL of 1.98 x 10-3 M KMnO, from a buret into a 50.00 mL volumetric flask, which is then filled to the 50.00 mL graduation mark with distilled water. Hint:...
PLEASE AND THANK YOU IN ADVANCE, will rate 5 stars and thumbs up plus recommend you!...
PLEASE AND THANK YOU IN ADVANCE, will rate 5 stars and thumbs up plus recommend you! The spectrophotometer was used to measure the abosrbance of each of a series of [FeSal]+ solutions. A standard curve was constructed by plotting the absorbance vs. concentration (M). The slope and y-intercept were found to be 1493 M-1 and 0.005, respectively. An aspirin sample was prepared following the procedure given in the experiment. A 0.139 g sample of aspirin was hydrolyzed with 5 mL...
Can't figure out the concentration of the complex of solns. 10, 11, 12, 13, & 14. Modern...
Can't figure out the concentration of the complex of
solns. 10, 11, 12, 13, & 14.
Modern Experimental Chemistry Chemistry 153 The Iron(III) Thiocyanate Complex Purpose of the Experiment To determine the chemical formula of a complex ion and measure its formation equilibrium constant Equipment Spectro Vis spectrophotometer and LabQuest, cuvette, 25-mL buret (3), ring stand, buret clamp (2), 50-mL beaker (3), small plastic beakers Reagents SCN, as KSCN, 0.00200 M solution Fe; as Fe(NO), 0.00200 M solution and a...
How do I calculate the concentrations for my data sheet lab. I have not started my...
How do I calculate the concentrations for my data sheet lab. I
have not started my lab yet but I just need to see how i would
calculate it with absorbance. Do i just use Beer's law or is there
any other method of solving the concentrations.
7. Weigh 1.45-1.55 g of copper(I) sulfate pentahydrate in a 50 mL beaker. 8. Dissolve the copper(II) sulfate pentahydrate in -15 mL of water 9. Add the aqueous solution of copper(II) to a...
PUH250, Al2(SO4)3 + 6H In the balanced equation (N2 + O2 + 2NO). How many grams of N, are needed to form or of NO?...
PUH250, Al2(SO4)3 + 6H In the balanced equation (N2 + O2 + 2NO). How many grams of N, are needed to form or of NO? a) 14 g b) 60 g c) 28 g d) 20 g The gas law which relates the gas pressure and its Kelvin temperature for a fixed amoun at constant volume is ...... a) Boyle's law b) Avogadro's law c) Charles's law d) Gay-Luss = 293 Determine the volume of 10 g of helium gas...
please solve what you can and show your work. I'm not really good in chemistry??♀️ Home...
please solve what you can and show your work. I'm not really
good in chemistry??♀️
Home assignment: Chapter 4: Aqueous Reactions and Solution Stoichiometry 1) Of the species below, only is not an electrolyte. A) HCI B) Rb2804 C) Ar D) KOH E) NaCI 2) Aqueous potassium chloride will react with which one of the following in an exchange (metathesis) reaction? A) calcium nitrate B) sodium bromide C) lead nitrate D) barium nitrate E) sodium chloride 3) When aqueous solutions...
Can you answer question 4 & 5? The experiment and porcedure is posted below Question 4...
Can
you answer question 4 & 5? The experiment and porcedure is
posted below
Question 4 & 5
CHM3120C Analytical Chemistry Lab Lab 7. Spectrophotometric Determination of Iron in Mohr's Salt with o-Phenanthroline Required Reagents and Supplies: 50 mL of 0.0005M -0.0006 M of Mohr's solution (unknown), 10 g of Hydroxylamine hydrochloride (NH2OH, HCI), 500 mL of o-phenanthroline solution (contains 0.5 g of o-phenanthroline monohydrate), 83 g of sodium acetate (NaOAc. 3H20) in 500 mL of water (for 1.2 M...
Titration: Acids and Bases 2. How can you determine which acid is diprotic? 3. using the...
Titration: Acids and Bases
2. How can you determine which acid is diprotic?
3. using the answers to questions one and two, which acid is
diprotic?
4. Which base has more hydroxide ions per molecule?
Acid Volume Base Base Initial Volume (mL) Base Final Volume (mL) Volume of Base Used (mL) Acid: Base Ratio Acid 1 20 mL Base 1 50 mL 34.5 15.5 4:3 Acid 2 20 mL Base 1 Acid 1 20 mL Base 2 Acid 2 20...
How do I calculate the Rate of Reaction and the Relative Rate of Reaction? 0.04M 0.1M...
How do I calculate the Rate of Reaction and the Relative Rate of
Reaction?
0.04M 0.1M Initial I Concentration Initial S2082- Concentration Show a calculation of how you calculated the rate of reaction Rate of Reaction Use M/s to represent (mol/L)/s Show a calculation of how you calculated the relative rate of reaction Relative Rate of Reaction Reaction 1 Save&Continue Time to Colour Change 948 Numeric answers include a number followed by units. Nothing else. Pay attention to precision. Use...
I. If a solution absorbed violet light, what color would the solution appear to be? Hint: 1. Calculate the concentration of a solution prepared by adding 15.00 mL of 1.92 x 10-3 M KMnO, from a buret into a 50.00 mL volumetric flask, which is then filled to the 50.00 mL graduation mark with distilled water. Hint: 2. A linear standard curve of KMnO4 is prepared from a set of standard solutions by plotting absorbance (y) vs. concentration (x). Use...
3. Suppose that an unknown sample is analyzed
spectrophotometrically at the same wavelength that was used for the
standard curve and the absorbance was found to be 0.196. Use the
standard curve to find the concentration of the unknown.
1. Calculate the concentration of a solution prepared by adding 15.00 mL of 1.98 x 10-3 M KMnO, from a buret into a 50.00 mL volumetric flask, which is then filled to the 50.00 mL graduation mark with distilled water. Hint:...
Can't figure out the concentration of the complex of
solns. 10, 11, 12, 13, & 14.
Modern Experimental Chemistry Chemistry 153 The Iron(III) Thiocyanate Complex Purpose of the Experiment To determine the chemical formula of a complex ion and measure its formation equilibrium constant Equipment Spectro Vis spectrophotometer and LabQuest, cuvette, 25-mL buret (3), ring stand, buret clamp (2), 50-mL beaker (3), small plastic beakers Reagents SCN, as KSCN, 0.00200 M solution Fe; as Fe(NO), 0.00200 M solution and a...
How do I calculate the concentrations for my data sheet lab. I
have not started my lab yet but I just need to see how i would
calculate it with absorbance. Do i just use Beer's law or is there
any other method of solving the concentrations.
7. Weigh 1.45-1.55 g of copper(I) sulfate pentahydrate in a 50 mL beaker. 8. Dissolve the copper(II) sulfate pentahydrate in -15 mL of water 9. Add the aqueous solution of copper(II) to a...
PUH250, Al2(SO4)3 + 6H In the balanced equation (N2 + O2 + 2NO). How many grams of N, are needed to form or of NO? a) 14 g b) 60 g c) 28 g d) 20 g The gas law which relates the gas pressure and its Kelvin temperature for a fixed amoun at constant volume is ...... a) Boyle's law b) Avogadro's law c) Charles's law d) Gay-Luss = 293 Determine the volume of 10 g of helium gas...
please solve what you can and show your work. I'm not really
good in chemistry??♀️
Home assignment: Chapter 4: Aqueous Reactions and Solution Stoichiometry 1) Of the species below, only is not an electrolyte. A) HCI B) Rb2804 C) Ar D) KOH E) NaCI 2) Aqueous potassium chloride will react with which one of the following in an exchange (metathesis) reaction? A) calcium nitrate B) sodium bromide C) lead nitrate D) barium nitrate E) sodium chloride 3) When aqueous solutions...
Can
you answer question 4 & 5? The experiment and porcedure is
posted below
Question 4 & 5
CHM3120C Analytical Chemistry Lab Lab 7. Spectrophotometric Determination of Iron in Mohr's Salt with o-Phenanthroline Required Reagents and Supplies: 50 mL of 0.0005M -0.0006 M of Mohr's solution (unknown), 10 g of Hydroxylamine hydrochloride (NH2OH, HCI), 500 mL of o-phenanthroline solution (contains 0.5 g of o-phenanthroline monohydrate), 83 g of sodium acetate (NaOAc. 3H20) in 500 mL of water (for 1.2 M...
Titration: Acids and Bases
2. How can you determine which acid is diprotic?
3. using the answers to questions one and two, which acid is
diprotic?
4. Which base has more hydroxide ions per molecule?
Acid Volume Base Base Initial Volume (mL) Base Final Volume (mL) Volume of Base Used (mL) Acid: Base Ratio Acid 1 20 mL Base 1 50 mL 34.5 15.5 4:3 Acid 2 20 mL Base 1 Acid 1 20 mL Base 2 Acid 2 20...
How do I calculate the Rate of Reaction and the Relative Rate of
Reaction?
0.04M 0.1M Initial I Concentration Initial S2082- Concentration Show a calculation of how you calculated the rate of reaction Rate of Reaction Use M/s to represent (mol/L)/s Show a calculation of how you calculated the relative rate of reaction Relative Rate of Reaction Reaction 1 Save&Continue Time to Colour Change 948 Numeric answers include a number followed by units. Nothing else. Pay attention to precision. Use...
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