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explain why data analysis is important to validate results
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- You work in a research organization that is looking for markers of various diseases that can be used as a diagnostic for the disease. It has been reported in the past that high levels of Cu are found in the sweat of people with cystic fibrosis. One of the research projects is focused on looking for high levels of Cu in samples that can be obtained non-invasively such as saliva, sweat, hair, nails, etc. The lab will analyze large samples for Cu. What instrument would you recommend purchasing to support this work, Atomic absorption spectrophotometer or an inductively coupled plasma atomic spectrophotometer? Explain the basis for your decision.Need help filling out the rest of the dataWhich of the following best define systems thinking in chemistry? Systems thinking is learning about chemistry within real-word contexts. Systems thinking focuses on the interdependence between chemistry components, as well as the influence of chemistry on other systems. Systems thinking is a way of thinking about chemistry systematically.
- Two students A and B performed a four-trail analysis for calcium content in a given sample. The results are shown in the following table: Trial 1 Trial 2 Trial 3 Trial 4 Student A 16.92% 16.90% 16.88% 16.91% Student B 18.30% 18.50% 18.60% 18.80% If the actual amount of calcium in the sample was 16.90%. Which of the following statements is correctly describing the work of the students? Select one: O a. Student B is less accurate and less precise than student B O b. Student B is more accurate but less precise than student B O c. Student B is more accurate and more precise than student B O d. Student B is less accurate but more precise than student B Next pDistinguish between data and results.Find the trends and explain the reasons
- Dissolution Distilled H20 Concentration 0.01 M HCI Concentration (mg/ml) Time Total amount A Total amount A (mg/ml) (mg) (mg) 5 0.16 0.1 10 0.24 0.18 15 0.35 0.25 20 0.48 0.34 25 0.58 0.4 30 0.67 0.5 1. Plot the given data on an ordinary paper and find the slope for each line then calculate the IDR constant for aspirin in the two dissolution media, water and HCI. NOTE: Slope of the calibration curve = 1.0 (mg/ml and saturation solubility of salicylic acid is equal to 2.0 gm/L.Concentration (mg/ml) Time (min) 8.5 0.5 6.8 5.4 1.5 4.0 2 3.2 2.5 2.5 3 What will be the slope of the line using the given first and second values? What will be the y-intercept, still using the given first and second values? Completely state the equation of the line. nlcot olN5DENSITY Learning Objectives After completing this Lecture Tutorial, students should be able to: explain how density is different than weight. apply the concepts of density to explain plate movement at convergent boundaries. Part 1: Comprehension of Density Density is the amount of material in a given volume. It can be thought of as how compact something is. If two objects are the same size but one is heavier, it is more dense. 1. For each of the three rows below, circle which is more dense. One row will have the same density. a bucket of ping pong balls or a bucket of golf balls or There are the same density. or There are the same density. a small piece of granite or a large piece of granite or There are the same density. 2. Three students are discussing the density of different sized rocks. Student 1: I think a small rock is less dense than a large one. When you pick them up, the small rock is much lighter than the big rock. Since density is the same thing as weight, a heavier rock is…