(a)
Interpretation:
The effect of increase in the flow rate on the elution time of supercritical carbon dioxide in an SFC experiment is to be explained at constant pressure and temperature.
Concept introduction:
The time that falls in between the entry of the solute into the column and the starting of elution of the solute is termed as the elution time. There are in total three factors that affect the elution time such as flow rate, pressure and temperature.
(b)
Interpretation:
The effect of increased pressure on the elution time of supercritical carbon dioxide in an SFC experiment is to be explained at constant pressure and temperature.
Concept introduction:
The time that falls in between the entry of the solute into the column and the starting of elution of the solute is termed as the elution time. There are in total three factors that affect the elution time such as flow rate, pressure and temperature.
(c)
Interpretation:
The effect of increased temperature on the elution time of supercritical carbon dioxide in an SFC experiment is to be explained at constant pressure and temperature.
Concept introduction:
The time that falls in between the entry of the solute into the column and the starting of elution of the solute is termed as the elution time. There are in total three factors that affect the elution time such as flow rate, pressure and temperature.
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Chapter 29 Solutions
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- (a) The researchers are requested to prepare a 5.23 mol dm³ of concentration of Sodium Thiosulphate for the laboratory. The researchers have measured the concentration of the solution prepared by using the Sodium Thiosulphate Concentration Monitor. The result of the experiments is shown in Table 1. Table 1 Reading (M) Researcher Equipment Type Average 3 1 АВС-1 4.75 4.98 4.66 4.80 Y АВС-2 5.40 5.20 5.30 5.30 Z АВС-3 3.45 2.58 4.52 3.52 i. Based on the Table 1, conclude the results obtained by the researchers. ii. Define the metrology term: Error. iii. Calculate the error percentage obtained by each researchers.arrow_forwardTime on hotplate (min) 60, 66, 68, 75, 85, 95, Mass of ZnCO3 + Filter paper (g) 3.7123, 2.7035, 2.6574, 2.5213, 2.3548, 2.239 Use the following data table and steps a-d below to calculate the concentration of the zinc carbonate. The mass of the filter paper alone (no ZnCO3) was 1.3457 g. The ZnNO3 solution (10.00 mL) was mixed with 15.00 mL of the 1.00 M Na2CO3. Calculate the mass of zinc carbonate formed. How many moles of zinc carbonate formed? Calculate the moles of zinc in the zinc nitrate solution used. Calculate the concentration of the zinc in the zinc nitrate solution.arrow_forwardName three (3) other types of samples that can be analyzed in a typical acidimetric process.arrow_forward
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- Name: Due: Wed., 3/1/23 AP Chemistry 11. A student is instructed to determine the concentration of a solution of CoCl2₂ based on absorption of light (spectrometric/colorimetric method). The student is provided with a 0.10 M solution of CoCl₂ with which to prepare standard solutions with concentrations of 0.020 M, 0.040 M, 0.060 M and 0.080 M.arrow_forwardCourse: Logical MathematicsFran and Juan Carlos have finished analysis of 112.5 GRAMS of sediments they collected at mouth of a river, and have spent 5 minutes for every 20 MILIGRAMS (MG) of minerals.How many MINUTES did they spend in total for 112.5 GRAMS? (Remember that 1 GRAM = 1,000 MG). Please details of procedurearrow_forwardA weight of 0.50 g was taken impure container containing sodium carbonate and bicarbonate. Dissolved in water and then crushed with hydrochloric acid (0.1 N), the burette reading game was at the endpoint of phenolphthalein of 10.5 ml and at the end point of the orange methylation point 30.1 ml. The percentage of sodium carbonate was in ................. knowing that the weights are: Na: 23, C: 12, O: 16arrow_forward
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