January 10, 2017 Jane Doe and John Doe Experiment 1: Density, Graphing, Accuracy and Precision Sample # 1 2 3 4 Initial Buret Reading 12.40 14.20 15.98 18.08 Final Buret Reading 14.20 15.98 18.08 20.08 mL Difference 1.80 1.78 2.10 2.00 Cumulative Volume 1.80 3.58 5.68 7.68 Dry Cap + Vial 4.935 g After Adding Sample 6.7081 8.5443 10.7027 12.8074 Difference 1.7731 3.6093 5.7677 7.8724
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can you please explain how we get the cumulative volume and what is it? The image below is just for reference. It shows the cumulative volume. But do we obtain it
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- Chemistry 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.Given the following data, calculate the 95% confidence interval. 0.452 0.453 0.448 0.456 0.458 Average = 0.4534 St. Dev. = 0.003847 1) 0.453 ± 0.004 2) 0.453 ± 0.005 3) 0.4534 ± 0.0048 4) 0.4534 ± 0.0037 5) 0.4534 ± 0.0038Perform the following calculation: negative 0.00030 fraction numerator g over denominator C presuperscript ring operator thin space cross times c m cubed end fraction cross times 30.0 thin space degree C What is the answer to the calculation above with the correct units and significant figures? Group of answer choices -0.0090 ???3 g c m 3 -0.009000 ???3 g c m 3 -0.00900 ???3 g c m 3 -0.009 ???3
- A. B. and C. already solved (https://www.bartleby.com/questions-and-answers/chemistry-question/a89691d6-2162-4677-b0cc-dc84fcceda08). Please answer E, F and GCircle in pencil in the image on th eirght cide of the diagram is a "2"( Pb(NO3)2 ).Give two examples of the Scale Factor Error (one of the types of systematic error). Please do not give what is already given in the example. I need it ASAP Thank youIs it faster to 1) adjust the liquid level to exactly hit a graduated cylindermeasurement mark or, 2) to estimate the last digit of precision in reading thevolume? Is one more accurate than the other?
- Pls answer the question linked below: https://pasteboard.co/0afMgF1vi1jX.pngPlease answer super fast and answer all questions and show calculations For the image attached For 1. a Mass of metal: Trial 1 is 35.0228 g Trial 2 is 35.0915 g Trial 3 is 34.0821 g Mass of water: Trial 1 is 20.0177 g Trial 2 is 20.0250 g Trial 3 is 20.0168 g For delta t of water: Trial 1 is 15.5 C Trial 2 is 15.7 C Trial 3 is 15.1 C For delta t of metal Trial 1 is 80.1 C Trial 2 is 80.2 C Trial 3 is 79.5 C For B my calculated Specific heat is: Trial 1 is 0.462 Trial 2 is 0.467 Trial 3 is 0.466Systematic error causes the mean of a data set to differ from the accepted value. True False
- Hello, I need help understanding how to find the correct answer to the problems, I have been struggling with dimensional analysis lately, so I need help setting the problem up.Hello, I need help understanding how to find the correct answer to this problem, as I have been struggling with dimensional analysis lately.1. 500.0 mL 0.2 M KI2. 500.0 mL 0.2 M KCl3. 500.0 mL 0.1 M K2S2O84. 500.0 mL 0.1 M K2SO45. 500.0 mL 4.0 mM Na2S2O3 (from Na2S2O3∙5H2O)pls compelete the 2nd table given the data