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How does baseline correction affect the absorbance in UV-vis spectrophotometry?
I did experiments with UV-Vis spectrophotometer to obtain a set of wavelengths vs absorbance for various concentrations. I found that I missed one trial of different concentration and I needed to obtain the data for the trial I missed. I remade a baseline solution and obtain the data I want. I need to graph the data from the trial I missed with the rest of data that I obtained before. I wonder if baseline correction from the previous data has effects on my another trial that did not run at the same time. Although I use the same concentration of solution for baseline solution, it will not lead to exactly the same data with the other data I did before.
I wonder if the baseline correction affects the absorbance of my new data and can I compare the new data with the previous data that has the same concentration baseline but not run at the same time?
I did experiments with UV-Vis spectrophotometer to obtain a set of wavelengths vs absorbance for various concentrations. I found that I missed one trial of different concentration and I needed to obtain the data for the trial I missed. I remade a baseline solution and obtain the data I want. I need to graph the data from the trial I missed with the rest of data that I obtained before. I wonder if baseline correction from the previous data has effects on my another trial that did not run at the same time. Although I use the same concentration of solution for baseline solution, it will not lead to exactly the same data with the other data I did before.
I wonder if the baseline correction affects the absorbance of my new data and can I compare the new data with the previous data that has the same concentration baseline but not run at the same time?
Farmer Brown planted 15 more rows of turnips than carrots. If the number of turnip rows was 35 less then twice the number of carrot rows, how many rows of each did Farmer Brown plant?
A salt unknown containing ferrous ion was dissolved and diluted to 250.0 mL. A 25.00 mL aliquot of the ferrous ion solution was titrated with 0.01450 M potassium permanganate solution, and the mean of three acceptable, corrected titrations volumes was 14.43 mL. Calculate the mass of iron in the 250.0 mL solution.
Give your answer to 4 places after the decimal. Do not enter units.
Give your answer to 4 places after the decimal. Do not enter units.
A 3.7122 g sample of an unknown salt containing ferrous ion was dissolved and diluted to 250.0 mL. Repeat 25.00 mL samples of the total solution were titrated with 0.01860 M KMnO4 solution, and the mean of three accepted corrected titration volumes was 19.00 mL. Calculate the %w/w of iron in the original sample mass.
State your answer to 2 places after the decimal place. Do not enter units.
State your answer to 2 places after the decimal place. Do not enter units.
A salt unknown containing ferrous ion was dissolved and diluted to 250.0 mL. A 25.00 mL aliquot of the ferrous ion solution was titrated with 0.01450 M potassium permanganate solution, and the mean of three acceptable, corrected titrations volumes was 14.43 mL. Calculate the mass of iron in the 250.0 mL solution.
Give your answer to 4 places after the decimal. Do not enter units.
Give your answer to 4 places after the decimal. Do not enter units.
A salt solution containing ferrous ion was titrated with (1.94000x10^-2) M KMnO4 solution. The mean of 3 acceptable, corrected titration values was (1.750x10^1) mL. Calculate the moles of ferrous ion reacting in each titration portion.
Give your answer to 4 significant figures.
Note: Your answer is assumed to be reduced to the highest power possible.
Give your answer to 4 significant figures.
Note: Your answer is assumed to be reduced to the highest power possible.
A salt solution containing ferrous ion was titrated with (1.94000x10^-2) M KMnO4 solution. The mean of 3 acceptable, corrected titration values was (1.750x10^1) mL. Calculate the moles of ferrous ion reacting in each titration portion.
Give your answer to 4 significant figures.
Note: Your answer is assumed to be reduced to the highest power possible.
Give your answer to 4 significant figures.
Note: Your answer is assumed to be reduced to the highest power possible.
A salt solution containing ferrous ion was titrated with 0.01473 M KMnO4 solution. The mean of 3 acceptable, corrected titration values was 12.53 mL. Calculate the moles of ferrous ion reacting in each titration portion.
Give your answer to 4 places after the decimal.
Give your answer to 4 places after the decimal.
As gases are in varying rates of motion and have no defined shape or volume, how do we compare gases. In order to compare gases, there must be Standardized conditions such as pressure, temperature, and amount of gas molecules (in moles). What is the defined pressure and temperature (STP) for comparing gases?
If a 0.12196 M solution of KMnO4 is titrated with a salt containing ferrous ion and 19.04 mL is required to reach the end point, calculate the moles of potassium permanganate used in the titration.
Give your answer to 4 places after the decimal. Do not enter units.
Give your answer to 4 places after the decimal. Do not enter units.
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#339914 on Dec 2023
#339914 on Dec 2023