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why is it important to apply the percent volume and percent retrieval in separation of mixtures experiment?
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- Categorize each as a determinate or an indeterminate error and further classify determinate errors as instrumental, method or personal.d) The tip of the pipet used in the analysis is broken. e) In measuring the same peak heights of a chromatogram, two technician each report different heights.Explain briefly the percent volume and percent retrieval in separation of mixtures.Which of the following is incorrect: a. General steps in quantitative analysis include: Method selection, sampling, sample processing, calibration & measurement. b. Quantitative analytical methods include: gravimetric, volumetric, spectroscopic and electroanalytical methods. c. The first step in sample processing is sample preparation. d. Replication improves the quality of results and their reliability. e. In quantitative analysis there should be a inverse proportionality between a measured property and the concentration or amount of substance. Please fill in the spaces one of the following characters (a or b or c or d or e) Answer:
- Compare the pair sample number 1 and 4 in terms of their use.Which of the following is incorrect: a. General steps in quantitative analysis include: Method selection, sampling, sample processing, calibration & measurement. b. Quantitative analytical methods include: gravimetric, volumetric, spectroscopic and electroanalytical methods. c. The first step in sample processing is sample preparation. d. Replication improves the quality of results and their reliability. e. In quantitative analysis there should be a inverse proportionality between a measured property and the concentration or amount of substance.4. A fat sample with combination of acids contain standard hydrochloric acid for blank and sample with 8mL and 5mL respectively. The normality of the standard hydrochloric acid is 0.93N and the weight of the sample is 3 grams. Calculate the saponification value.
- Think about the situation where you are investigating the relationship of study time vs. exam grade.a. Which variable would be on the x-axis (and why)?b. Which variable would be on the y-axis (and why)?c. Would you expect the slope to be positive or negative (and Why)? 2) Contrast and compare interpolation with extrapolation. Which is “safer” to use and why?3) Look up how “the best fit straight line” is constructed. The term “Least squares” should be in your explanation.4) If I plot some data and end up with a r2 of (-) 0.99, is my plot useless? Explain.Which sentence is false about gravimetric analysis? a. It is used for inorganic b. It is used to assay barium c. It is used to assay of d. Relative precision 3% to 4%Question 1 for data analysis
- What will happen to the sample size if the percentage error becomes lower e.g. 5% instead of 10%? Explain how the sample will best represent the population.Data analysis need number 4The spay used to develop the chromatogram is a solution of Group of answer choices a.) Ferrocyanide, ammonia, and iodide b.) Ammonia c.) Potassium permanganate d.) Potassium ferrocyanide