How would the following sources of error effect the value of R you determined in your experiment? High/Low/ No Effect. Clearly explain your choice!
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- What impact would using a much smaller sample have on the accuracy of your resultsbased on the data from the experiment, how do i calculate the percentage of error? also, how do i explain about the observation.What are the differences between systematic and random errors and how do they effect accuracy and precision? In what circumstances would you use standard addition (versus a normal calibration curve) to determine the amount of an analyte in a sample? A urine sample, containing analyte Z is analysed by the standard addition method where 5 mL of the original sample was mixed with increasing amounts of a Z standard and each solution diluted to a volume of 50 mL prior to analysis. A plot of the final concentration of the standard in each of the 50 mL samples (x axis) versus The measured signal from the analysis of each 50 mL sample (on y axis) produced a straight line with the general equation: y = 44.72x + 4.06 what was the final concentration of Z in the 50 mL standard addition sample? what was the initial concentration of Z in the original urine sample?
- In a particular trial, a student got a value for R of 0.083. Calculate the percent deviation of this result. Enter a number without the % sign. The percent deviation should be reported as a positive value.Please confirm if my answer is correct or not. Due to the need for this to be correct I would like you to provide me with a confidence score in you answer on a scale from 1 to 10 how confident are you in your answer. Please be sure to double check your answer7. A piper delivers 10.4 mL , 10.2 mL, 10.8 mL , and 10,6 mL consecutive trials . Find the mean volume and average deviation from the mean.
- Student A determines the percent acetic acid in their sample to be 4.31% and they report a standard deviation of 0.57. Student B also reports a value of 4.31 % acetic acid, with a standard deviation of 1.2. Which student (A or B) has the more reliable determination? Briefly, 1 - 2 sentences,The spectroscopic data in the table is generated with five solutions of known concentration. Concentration (M) 0.0133 m= 0.0266 0.0532 0.106 0.213 Absorbance 0.1271 What is the intercept of the linear regression line? 0.08531 0.5388 1.069 Use a spreadsheet program, such as Microsoft Excel, to graph the data points and determine the equation of the best-fit line. 1.954 What is the slope of the linear regression line formed by these points? M-1For items 7-8 choose the letter of the best answer. No need to write the explanations.
- Need help with number 4. Theses are pre lab questions and not homework. Was rejected once and unsure why. Pre lab means before the actually lab we do (which that part is graded) ThanksPlease answer 8 and 9 both.Assuming that an experiment's results are 10.1, 10.4 and 10.6, find the mean, the average deviation from the mean and the standard deviation. You can use Excel to verify your calculation. Use the editor to format your answer