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SERIAL DILUTION: PROBLEM SOLVING.   Set up five (5) tubes on the test tube rack and label them 1-5. Place 0.9 ml of saline to tube #1 and 0.5 ml of saline to tubes # 2-5. Add 0.1 ml of patient's serum to tube #1, mix and transfer 0.5 ml of the mixture to tube # 2. Then, mix and transfer 0.5 ml of the mixture to tube # 3. Mix and continue dilutions through tube # 5. Discard 0.5 ml from tube # 5. Finally, add 0.5 ml of the reagent to each tube # 1-5. Compute for the initial dilution of tube #1 and final dilution of tube #5. Show your computation and encircle your final answer.

This assignment is designed to help you learn how to determine total costs by combining direct and indirect costs for a particular department. In this GHA, you will be determining the total costs for three departments: (1) Physical Therapy (2) Occupational Therapy and (3) Speech Therapy. To determine the total costs, you will need to add the direct costs to the indirect costs using the template provided below. Please use the example provided in the assignment description if you find that you need some support understanding the required calculations. DIRECT COSTS The direct costs for each department are easily identifiable, because they are the costs that are directly attributable to the department. The direct costs are as follows: Physical Therapy (PT) Occupational Therapy (OT) Speech Therapy (ST) Total Direct Costs INDIRECT COSTS The indirect costs will need to be allocated to Physical Therapy (PT), Occupational Therapy (OT), and Speech Therapy (ST). The indirect costs in this…

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STANDARD SAMPLE PREPARATIONS FOR ABSORBANCE & CONCENTRATION DATA Concentration of stock nickel sulfate hexahydrate solution = .400 Molarity Sample Volume Absorbance Concentration (In Molarity) a 5 mL .179 10 mL .329 15 mL .588 20 mL .760 25 mL .939 Reference Blank = 0 Please show how to find Molarity, please show steps. Thank you and stay safe.

Instructions You are required to produce a short lab report using the information given in the accompanying document, ‘Lab report assessment_student data’. This document introduces an experiment, and also provides a set of experimental data for this experiment. You are required to use this data to perform steps 8 and 9 of the procedure. This includes calculations of a particular value, and then comparison to the true value. Consider any experimental errors when comparing calculated values and true values. Your report should be between 300 and 500 words (including all table contents and titles of tables and graphs). Your lab report should consist of three sections only: • Experimental • Results and Discussion • Conclusion You do NOT need to include an introduction section. Your experimental section should be written in appropriate lab report format, (passive voice, 3 rd person, in paragraphs). Your results and discussion section should contain the data presented in table format, and…

Please answer fast i give you upvote.

When purifying a sample of aspirin that was produced in the lab, the impure aspirin sample should be dissolved in a very cold solvent, so that solid impurities can be filtered and analyzed the next day or the next week. True or False?

Please help

I need help understanding how to do this, can you please show me how you get the CFU/mL

Simplify. Write each answer in scie 17) (5.4x 10")는 (7X/0") 19) (6 x 10°(4 x 10-1) 21) (7.68 x 10:)는 (9x/0°)

Current Attempt in Progress From the curves shown in Animated Figure and using the following Equation, determine the rate of recrystallization for pure copper at the several temperatures. Make a plot of In(rate) versus the reciprocal of temperature (in K-1). (a) Determine the activation energy for this recrystallization process. (See Section FACTORS THAT INFLUENCE DIFFUSION.) (b) By extrapolation, estimate the length of time required for 50% recrystallization at room temperature, 20°C (293 K). (a) i kJ/mol (b) i days

We want to inform you that your performance as a tutor is being evaluated and will be reported to the administration. Additionally, there will be an online ranking system that not only assesses the overall performance of Bartleby as a website but also ranks individual tutors based on their question-and-answer accurate contributions. This ranking will be shared with management. Please ensure that your responses are of the highest quality, as multiple requests may be directed to the same person for assessment.

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-1

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We want to inform you that your performance as a tutor is being evaluated and will be reported to the administration. Additionally, there will be an online ranking system that not only assesses the overall performance of Bartleby as a website but also ranks individual tutors based on their question-and-answer accurate contributions. This ranking will be shared with management. Please ensure that your responses are of the highest quality, as multiple requests may be directed to the same person for assessment.

urses/55527/quizzes/401369/take → # 3 Complete the data table using the calculation process you used to complete the previous question. Be sure to keep a copy of the completed table to include in the lab report for this experiment. $ Trial 1 Trial 2 Trial 3 Trial 4 Trial 5 4 1.00 M Acetic Acid volume HC₂H3O2 25.0 mL 25.0 mL 25.0 mL 25.0 mL 25.0 mL Q Search f5 % moles 5 f6 Mole Ratio 6 HC₂H3O2 : NaHCO3 3:1 2:1 *All values should contain three (3) significant digits. 1:1 1:2 1:3 U hp NaHCO3 Molar Mass: 84.007 g/mol moles fg * 99+ 8 a fg mass needed DO 9 f10 ► 11

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Could you help me with question one please?

Hello, the priority to be answered would be page 1 (1st image). However, I can put part 2 (2nd image) on a new question/post. Just wanted to include that in this post for reference to whoever will answer it. Thank you!

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Arrange the values according to magnitude. Greatest     Least Answer Bank 7.1×10−6 3.3×10−2 52000 9.0×10−6 2.2×105

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• Stock solution: 1000 mg/L Target sample concentrations: 50-400 mg/L • Create a 5-point standard dilution to cover the test • If each test only needs 10 mL, make plans to make the dilution so you have 20 mL of each concentration. ·

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board Instructions Please select the best answer for each of the questions. This test has a time limit of 2 hours.This test will save and submit automatically when the time expires. Warnings appear when half the time, 5 minutes, 1 minute, and 30 seconds remain. Timed Test Multiple Attempts Not allowed. This test can only be taken once. Force Completion Once started, this test must be completed in one sitting. Do not leave the test before clicking Save and Submit This test does not allow backtracking. Changes to the answer after submission are prohibited. Your answers are saved automatically. Remaining Time: 1 hour, 34 minutes, 00 seconds. * Question Completion Status: A Moving to the next question prevents changes to this answer. Question 2 What is the pH of the solution which results from mixing 25 mL of 0.20 M CH3CO>H and 25 mL of 0.20 M NAOH? (K, for CH3CO>H = 1.8 x 10-b) OA 8.87 OB. 10.43 OC7.00 OD.9 02 OE 5.13 A Moving to the next question prevents changes to this answer. *- F11…

Choose the best answer among the choices under each question/ statement.  Thank you

Consider four distinct physical properties: boiling point, melting point, solubility, and density. Which of these physical properties do you think allows thin layer chromatography (TLC) to work? Choose one then, explain your reasoning.

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Which analytical separation method is best for recovering river bodies that are polluted by heavy metals and particulate matter. Explain your analytical process of choice.

During a routine check of the fluoride content of Gotham City's water supply, the given results were obtained from replicate analyses of a single sample: 0.815 mg/L, 0.789 mg/L, 0.811 mg/L, 0.789 mg/L, and 0.815 mg/L. Determine the mean and 90% confidence interval for the average fluoride concentration in this sample. Report the mean and the confidence interval using the "real rules" for significant figures. mean: 0.804 90% confidence interval: 2.32 x10-4 Incorrect mg/L mg/L

please highlight the correct answer