RiosJavier_Experiment 1 Measurement_06-Spr22

Part A If 2.0 x 10-4 moles of S20 in 50 mL solution is consumed in 3 minutes and 17 seconds, what is the rate of consumption of S20 ? Express the rate in mol per liter-second to two significant digits. M 2.128 10 Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining < Return to Assignment Provide Feedback

How can we determine Avogadro’s number based on trials 1-3 ? The volume is 0.0125

Question 6 5 pts 1 Details Suppose that a shipment of 18 calculators is received by a school. Suppose also that 37% of all calculators have dead batteries. (a) Fill in the values below. n = p = 1-p= (b) What is the mean (or expected value) of the number of calculators received by the school that have dead batteries. Do not round. (c) What is the standard deviation of the number of calculators received by the school that have dead batteries. Round to 2 decimal places.

Sucrose solution for experiment 1: (Question a-c)Prepare a solution of sucrose by accurately weighing 9.0 – 9.25 g of sucrose into a 100mLbeaker / conical flask. Record the mass of the sample. Add 25 mL distilled water. Mix until allcrystals dissolve.NaCl solution for experiment 2: (Question d-f)Prepare a solution of NaCl by accurately weighing approximately 1.5 g of NaCl into a 100 mLbeaker / conical flask. Record the mass of the sample. Add 25 mL distilled water. Mix until allcrystals dissolve.MgCl2٠6H2O solution for experiment 2: (Question d-f)Prepare a solution of magnesium chloride by accurately weighing approximately 3.6 g ofMgCl2٠6H20 into a 100 mL beaker / conical flask. Record the mass of the sample. Add 25 mLdistilled water. Mix until all the crystals dissolve

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A solution is prepared by diluting 2.81 mL of the blue dye stock solution to 25.00 mL. The measured absorbance for the prepared solution is listed in the data table. Measurement Result Blue dye stock solution 0.293 M Absorbance at 630 nm 0.00265 Calibration curve y=0.0833x Part: 0/3 Part 1 of 3 What is the theoretical molar concentration? Round your answer to 3 significant digits. [Blue]theoretical-M x10 X S Part: 1/3 Part 2 of 3 What is the experimental molar concentration? Round your answer to 3 significant digits. [Blue ] experimental M 9 Subm Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Cent

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please help and plug it in the correct form i have been trying and i keep getting it wrong.

Please help with questions 2-3

7. A procedure for measuring the amount of creatinine in blood was applied to a standard blood sample and the following results were produced: 0.787, 0.812, 0.796, 0.739, 0.802, and 0.823 mg/dL.  a) Can any of the data points be rejected by the Grubbs test? b) What is the 95% confidence interval for the data?

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Using a 25mL pipette, you prepare a standard solution by pipetting 25.00mL of the standard iron solution[0.25g/L] into a 500mL volumetric flask. Then, using a 10mL pipette you transfer a 4mL aliquot of this solution into a 50mL volumetric flask and dilute up to the mark. Calculate the % uncertainty.   Question 1 options:   0.65   0.75   0.0075   0.45

2:53 1 Question 43 of 45 Submit A student needs to run 3.2 km to get to school. If the student can run 5.5 mi/hr , how many hours will it take them to get to school? STARTING AMOUNT ADD FACTOR ANSWER RESET -( ) %3D 18 1 mi/hr 0.36 km 1.609 mi 5.5 hr 60 min 0.94 3.2 0.58 0.6214 35 Tap here or pull up for additional resources

The following volumes of 0.000300 M SCN are diluted to 15.00 mL. Determine the concentration of SCN in each sample after dilution. These values will be used during the experiment. To enter exponential values, use the format 1.0e-5. Sample 0.000300 M SCN (mL) [SCN'] (M) 1 1.50 3.50 7.00 4 10.00 3.

McGraw Hil ALEKS CHEMISTRY-Gener... esc E ! 1 MEASUREMENT AND MATTER Adding or subtracting and multiplying or dividing measurements Explanation -1 gml1 Q A 1 A chemistry student must write down in her lab notebook the concentration of a solution of sodium thiosulfate. The concentration of a solution equals the mass of what's dissolved divided by the total volume of the solution. Here's how the student prepared the solution: • The label on the graduated cylinder says: empty weight: 1.500 g • She put some solid sodium thiosulfate into the graduated cylinder and weighed it. With the sodium thiosulfate added, the cylinder weighed 96.6 g. She added water to the graduated cylinder and dissolved the sodium thiosulfate completely. Then she read the total volume of the solution from the markings on the graduated cylinder. The total volume of the solution was 97.7 mL. What concentration should the student write down in her lab notebook? Be sure your answer has the correct number of significant…

4. When you get your 5th correct answer, you will get a certificate that you can share with your teacher letting your teacher know how you did. Please provide a screenshot of your certificate showing you got this completed. DATA Part B: Measuring the Mass of Materials Top Loading Balance Mass Empty Beaker (g) Mass of Beaker + Paper Clips (g) Mass of Paper Clips (g) Analytical Balance Mass of Empty Beaker (g) Mass of Beaker + Paper Clips (g) Mass of Paper Clips (g) DATA ANALYSIS: 1. Show your calculation for the mass of paper clips using the top-loading and analytical balances. 2. Which of the balances, top-loading or analytical, has the most uncertainty per measurement? Explain. Page 10 of 14

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101 Chem101 b Search results for 'Using the infor x B Brainly.com - For students. By stu X G Using the information in the tab + -> A app.101edu.co I Apps y! email b bartleby B Brainly.com - For st. = Google Docs M gmail O eagle adv H school email S canvas m Monthly | My Classes 101 Chem101 general E Reading list Question 19 of 44 Submit Using the information in the table, the rate law for the reaction A(g) + 3 B(g) → C(g) + 2 D(g) is Rate [A], (M) [B], (M) (M/s) A) Rate = k[A][B]³ 1.25 0.100 0.850 B) Rate = k[B] C) Rate = k[A][B] 1.25 0.300 2.55 D) Rate = k[A][B]² 3.75 0.200 5.10 2:47 PM P Type here to search 67°F Clear 7/19/2021 近

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Part B (Trial #1) Part C (Trial #2)   Mass of empty evaporation dish     154.48 g   158.34 g Volume of sodium chloride solution added to evaporation dish   10.0 mL   10.0 mL Mass of evaporation dish containing sodium chloride crystals after evaporating the water and drying     154.94 g     159.85 g   Determine the average mass/volume % of salt in water.

= 1 = 2 = 3 = 5 6. 7 = 8 10 = 11 12 A chemist prepares a solution of calcium sulfate (CaSo,) by measuring out 0.482 umol of calcium sulfate into a 250. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mmol/L of the chemist's calcium sulfate solution. Round your answer to 3 significant digits. mmol Continue Submit A= © 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center e to search 74°F Mostly clear 立 O

You are trying to determine average experimental value with relative uncertainty for the volume of water measured in a 100 mL volumetric pipet with 0.08 mL precision. You follow the procedure below: 1. Weigh a 200 ml flask with a stopper on the analytical balance. Add 100 mL of distilled water measured carefully with a volumetric pipet and re- weight the flask and stopper with the water. 2. Empty the water from the flask and repeat the above procedure two more times for a total of three measurements for the pipet. You collect the following data in your lab notebook: In Lab Data Analytic Balance: Max weight 400 0.0007 g Volumetric Pipet: 100±0.08 ml Density water 1.000 g/ml Trial 1 2 3 Measured Volume (ml) 100.00 100.00 100.00 What is the average percent error in the volumes measured by the pipet? Notes: Canvas will not accept units, so please just input your value-with the correct sig fig Type your answer... Measured Mass (g) 98.1411 98.2413 98.9825

Please set up the answer the correct way. I am having a hard time with putting the units in the correct spots.