chemist working in a hospital clinical laboratory obtained the following values for uric acid in blood serum: 4.63. 4.58. 4,/2. 4. 21, 4.6/ and 4.65 %, a) Use the 95% confidence level to test any dubious values.
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A chemist working in a hospital clinical laboratory obtained the following values for uric acid in blood serum: 4.63. 4.58. 4,/2. 4. 21, 4.6/ and 4.65 %, a) Use the 95% confidence level to test any dubious values.
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- Part A: 1. 2. 3. 4. Part B: 1. 2. 3. 4.Ili 回85 2' 4 0O in 6 8. 7. 4. 3. $4 23 & IIO Moʻh +(9 CaF2(s) + + (6)!S CaSiO3(s) + If the coefficient equals 1, add "1" in the provided box. Write a balanced equation for the following by inserting the correct coefficients.A chemist working in a hospital clinical laboratory obtained the following values for uric acid in blood serum: 4.63, 4.58, 4.82, 4.31, 4.67 and 4.60 mg%. What value should be reported as the mean? Value of QT at 90 % confidence level is 0.56.
- (5) 15.0 mL of 0.327 M Na:50, and 34.4 mL of 0.200 M KCI . . Na+ SO4²- CI Ca M CI M M (c) 3.50 g of NaCl in 44.3 mL of 0.428 M CaCl₂ solution Na+ M M M M-). A new procedure for determining cholesterol in blood serum was used with a NIST standard sample producing the following results: 2.24, 2.21, 2.16, 2.21, and 2.19 mg/ml. If the NIST certified value is 2.12 mg/ml, determine if there a significant difference between the mean of the results and the certified or "true" value at the 95% confidence level?7) The homogeneity of the chloride level in a water sample from a lake was tested by an analyst. Below are the concentration in parts per million (ppm) of Cl: 27.32, 27.22, 27.21, 27.24, 27.20 i. Determine the mean and median. ii. Calculate the confidence limit at 90%. iii. Identify a possible outlier and use the Q-test to determine whether it can be retained or rejected at 90% confidence level
- Methanol: Mass oil ratio 6:1 of oil used (g) 100 Volume of oil CH₂ 1 CH used (1) (d = 918 g/l) CH₂ 0.1089 Mass of Methanol used 21.9 - OOC - R Volume Mass Mass of of of glycerol of Methanol KOH measured glycerol used (1) (g) (d=792 g/L) OOC - R" 0.0277 Triglycerides OOCR' + 3 CH₂OH 1 Solve the question regarding the table P.s. find the molecular weight of the compounds it will be needed in the solution. Methanol 21.76 Volume Question: Estimate the average molecular weight of FAME (biodiesel) using the balanced reaction equation. • Write down the overall reaction for the biodiesel production. Based on the material balance for the rxn, estimate Mw of FAME KOH measured (g) (1) (d=1.26 g/1) 17.27 Mass of Biodiseal calculated (1) calculated (d-0.88 g/ml) Mass balance 101.4 Biodiesel 3 CH₂0-COR+ Volume of biodiesel CH₂ 1 CH 1 CH₂ 115.23 - OH OH OH Glycerol4. 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.During a titration, it is desired to calculate the concentration of ammonium hydroxide using sulfuric acid as the titrant. The relevant titration reaction is given below. (1.jpg) In the titration using 0.3 M sulfuric acid in the presence of methyl orange, 20 cm3 of ammonium hydroxide was taken from the sample. Since 40 cm3 of sulfuric acid is consumed during the titration, calculate the concentration of ammonium hisroxide in terms of molarity.