Fraction no. Elution Vol. (mL) Abs                      (λ = 410)   Fraction no. Elution Vol. (mL) Abs   (λ = 410) 1 (PB pH 6.0) 1 0.0050   11 11 0.0041 2 2 0.0032   12 12 0.0060 3 3 0.0040   13 13 0.0064 4 4 0.0064   14 14 0.0063 5 5 0.0067   15 15 0.1109 6 6 0.0067   16 16 2.8902 7 7 0.0050   17 17 0.8500 8 (PB pH 8.0) 8 0.0049   18 18 0.2019 9 9 0.0052   19 19 0.0378 10 10 0.0050   20 20 0.0073 Use the data above to plot an elution profile, in which the absorbance is on Y-axis, and elution volume (volume = fraction number) is on X-axis. The elution profile must indicate at (1) which point the pH change occurred, (2) the fraction(s) which contain the highest myoglobin content, and (3) the maximum absorbance detected.

I need help on figuring out which are the four data points that can be considered outliers, below is my graph following the intructions but, not I dont know which points are outliners.

Q6. The following set of millimolarities were obtained when standardizing a solution: 10.67, 10.71, 10.66, and 10.45. One value appears suspect. Using Q test determine if it can be ascribed to accidental error, at the 90% confidence level.

Please give the full calculation + explanation for each step.

TRial 1 Trial 2 Trial 3   0.1 N HCl 0.1 N NaOH 0.1 N HCl 0.1 N NaOH 0.1 N HCl 0.1 N NaOH Final reading (ml) of the buret 20.00 19.90 40.00 39.70 20.00 45.30 Initial reading (ml) of the buret 0.00 0.00 20.00 19.90 0.00 25.50 Volume Used (ml) for the trial              Compute for 1.00 ml HCl in terms of ml. NaOH for  EACH Trial. Compute for 1.00 ml NaOH in terms of ml. HCl for  EACH Trial.

A bucket of water has a volume of 0.473 kL . How many dL is this? STARTING AMOUNT ADD FACTOR ANSWER RESET *( ) 47300 1000 0.001 0.01 10 4730 0.0000473 100 0.473 0.1 1 0.00473 473 0.000473 kL dL +

Please fill in blanks as shown on problem!!

02A: 2.1-2.5 and Accuracy Handout (70 min) ulate Figures of Merit for Trueness ▾ Part A. Absolute Error A breathalyzer is a portable electrochemical instrument that measures the concentration of ethyl alcohol in a sample of exhaled breath A forensic chemist checks the calibration of a breathalyzer by testing a standard air sample known to contain 0.174 mg/L of ethanol seven times. The average value of these seven replicate measurements is found to be 0 157 mg/1 Calculate the absolute error of the breathalyzer. 1971 ΑΣΦΑ Submit Previous Answers Request Answer ? Previous x Incorrect; Try Again: 4 attempts remaining Q Search mgl ly Colle 16 of 17 E dx Next 11:44 PM 1/31/202 BANG &

5-10

A standard reference material is certified to contain 94.6 ppm of an organic contaminant. Your analysis gives you the follow values, 98.6, 98.4, 95.1 and 97.2 ppm. Can you say with 95% confidence that your values differ from the certified value. Please show work