Answered: Multiply or divide the following…

Multiply or divide the following measurements. Be sure each answer you enter contains the correct number of significant digits. 749.38 g + 70.6 mL Ix10 = mL m 229.7 m + 39.6 s 78.084 cm X 75. cm cm

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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please explain why this is an "s" confirmation. thank you
The protein concentration of a protein isolate was determined using the Bradford assay. Five dilution of bovine serum albumin (BSA) were prepared from a 5.00 mg/mL BSA stock solution. To these dilutions, 100 µl of Bradford reagent were added. After 5 minutes, the absorbance was taken at 595 nm. Standard # BSA, in mg/mL Volume of Bradford reagent, A595 in mL 1 5.0 0.000 1.00 5.0 0.134 3 2.00 5.0 0.265 4 3.00 5.0 0.388 4.00 5.0 0.497 The supernatant dilution was prepared by mixing 49 µL of the protein isolate with 16 µL water. The absorbance was taken 5 minutes after addition of 100 mL Bradford reagent. Calculate the protein concentration (in mg/mL) of the original isolate if the absorbance at 595 nm was 0.413. Note: Final answer format must be x.xxx (three decimal places). Round off only in the final answer. Do not round off in the middle of calculation.
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What kind of electrophysiological experiment is illustrated in the recordings depicted below?
4 = 5 = 6 7 = 8 F 10 = 11 E 12 F 13 In a 0.20 mM aqueous solution of trimethylacetic acid (C¸H,CO,H), what is the percentage of trimethylacetic acid that is dissociated? You can find some data that is useful for solving this problem in the ALEKS Data resource. Round your answer to 2 significant digits. 0% Continue Submit Assignment O2020 McGraw-Hill Education. All Rights Reserved. Terms of Use | Privacy Accessibility esc 80 DD F2 F3 F4 F5 E7 F8 F9 F10 F11 F12
Pre market notification is required for cosmetics sold in Canada. Group of answer choices True False
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Data Analysis: 1. Create an Absorbance (Y) vs. Concentration (X) graph using data from the six standard solutions above. 2. Perform a linear trendline analysis of your six data points. Display the equation and R² value on the graph with a minimum of 8 decimal places. 3. On the same graph, perform a 2nd order polynomial trendline analysis of your six data points. Display the equation and R² value on the graph with a minimum of 8 decimal places. 4. Turn in your graph as the last page of this report. 5. On a separate piece of paper calculate the concentration of the unknown solution using both the linear and 2nd order polynomial trendline equations (Show all work) 6. Choose the best unknown concentration from #4 above and report it with three significant figures in the unknown data table above.
analyte concentration(C)(mg/ml) injection volume (ul) elution time (time) peak DAD signal(mAU) caffeine 1 1 4.67 302.85 aspartame 5 1 7.53 15.83 benzoic acid 1 1 8.14 89.98 saccharin 1 1 1.91 84.86 mixture(add everything above with 1:1:1:1 ratio) 1 4.47 69.58 How to get the concentration of the mixture in this case?
Glucose levels are routinely monitored in patients suffering from diabetes. The glucose concentrations in a patient with mildly elevated glucose levels were determined in different months by a spectrophotometric analytical method. What is the mode of the glucose concentration on Month 2? Time Glucose Concentration (mg/mL) 1108, 1122, 1075, 1099, 1115, Month 1 1083, 1100 Month2 992, 975, 1022, 1001, 991 Month 3 788, 805, 779, 822, 800 Month 4 799, 745, 750, 774, 777, 800, 758 992 mg/L 996 mg/L 101 mg/L O None of these
Table 1: Standard Curve for Bradford Method. Absorbance measured at 595 nm Concentration of BSA Stock solution is 200 ug/mL Amount of protein in tube (ug) O ug Volume of Volume of BSA Absorbance Bradford reagent 3000 µl 3000 µl 3000 µl 3000 µl 3000 µl 3000 µl Cuvette no. Standard 0.00 O ul 30 µl 60 μl 90 μl 120 µl 150 µl В 0.1435 1 0.2968 2 0.402 3 0.5038 4 0.587
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