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In this double titration experiment determining composition of soda ash, you are given the following data:
- M HCl titrant: 0.0501 M +/- 0.0507
- Mass of soda ash sample, g: 0.2505 ± 2.0e-4 (Analytical Balance)
- Total volume of Sample Stock, mL: 75 ± 0.05 (100mL graduated cylinder)
- Volume of Sample Stock Aliquot, mL: 25 ± 0.3
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- Sheet 5 From the following data determine the following: Define outlier and then identify the outlier in the data. Determine if the outlier should be kept of discarded from the data. Trial 1 2 3 4 HCl (mL) 22.3 28.4 29.8 29.3 NaOH (mL) 35.2 35.1 34.9 35.0Table 1: Volumes in of iodine in mL used to titrate mixtures of 10 mL of reaction mix and 10 mL of urine. student trial 1 trial 2 trial 3 total volume (mL) a 12.6 11.8 12.5 300 290 b. 10.6 10.7 10.6 11.1 118 12. 10.9 405 13.0 12.5 349 mg vit. C mL iodine TV (mL/hour) 10 mL urine aliquot TVC (mg/hour) =7 (mL) · CF !! What is the hourly vitamin C excretion rate (mg/h) of student b if the CF is 1.06? (include no more than two decimals in your answer, e.g.: 123.45, and do not type the units) 10.6 need ASAPO Love Don't Change - You 41 X G Which coefficient will balance x G Which coefficient will balance x ass Connect assignn x mancedSequenceViewer/1541826?url=https%3A%2F%2Fe02711f5-1353-40b6-af9b-349f7ff846bd.sequences.api.brightspace.com O LogMeln123 O Microsoft Office 365 fo O K12 Customer Supp.. 6 Class Connect Oct 28 Class Connect assignment Tanyia Hawkins: Attempt 1 Question 1 (1 point) Which coefficient will balance the equation when inserted in the ? spot in the equation? 2C2H2 ? O2 => 4CO2 2H20 1 04 3,
- Table of chemicals and reagents with their physicochemical properties (name, molecular formula, molecular weight, pKa, melting point, boiling point, etc.) Write a short outline or a flow diagram of the procedure List and safety issues Read and understand the MSDS information for each chemical used in this practical Experimental procedure Please do not scratch the clear sides of the UV cuvettes as this will invalidate your results. Part 1: Preparation of a calibration curve A calibration curve should be constructed using at least five concentrations of the pure paracetamol standard supplied in the range 3-15 ug/mL as follows: Weigh about 150 mg of paracetamol accurately and transfer to a 200 mL volumetric flask. Add 50 mL of o.1 M NaOH and dilute to about 100 mL with deionised water (DI). Shake and make up to volume with DI water. Dilute 10 mL of the resulting solution to 100 mL (volumetric flask) with DI water (= stock solution). Prepare standard solutions containing 3, 6, 9, 12 and 15…MX (Ksp = 2.42x10-11) Express your answer in moles per liter. S = Submit Part B S = IVE ΑΣΦ PbCl2 (Ksp = 1.17x10-5) Express your answer in moles per liter. Part C Request Answer Submit Request Answer S = 15| ΑΣΦ Ca(OH)2 (Ksp = 4.68x10-6) Express your answer in moles per liter. IVE ΑΣΦ Submit Request Answer www wwwww ? ? ? M M MShould be 3 answers in total. Will thumbs up! Next the student conducts two different runs: In RUN 1, 10.0 mL of 5.00 M NAOH is combined with 10.0 mL of 0.010 M CO and 80.0 mL of wate In RUN 2, 20.0 mL of 5.00 M NAOH is combined with 10.0 mL of 0.010 M CO and 70.0 mL of wate The following plots were obtained for each of the runs: [crystal orange] vs time (RUN 1) In[crystal orange] vs time (RUN 1) 0.0012 0.001 -2 y--0.4463x- 7.3334 y =-0.0002x + 0.0007 R- 0.6565 R = 0.893 0.0008 4 0.0006 -6 0.0004 -8 0.0002 0.0002 -12 time (hr) time (hr) 1/[crystal orange] vs time (RUN 1) 1/[crystal orange] vs time (RUN 2) 12000 25000 10000 20000 8000 15000 6000 y = 2000x + 1000 R =1 10000 y 4000x + 1000 R =1 4000 2000 5000 time (hr) time (hr) Figure 4. Kinetic traces for the reaction between crystal orange and sodium hydroxide. What is the order with respect to CO? | Select ] What is the order with respect to NaOH? | Select ] What is the value of the averaged rate constant for the reaction above? Give…
- HP TrueVision HD 4 Texas Workfor Mộc Homework × W. College Physic mical App AN Careers eagleonline.hccs.edu/courses/188795/assignments/3601808 valnabie diler reD 4 dl 10.1Tam Constants | Periodic Table Part O Complete the fourth row. Complete the following table by calculating the missing entries and indicating whether the solution is acidic or basic. Express your answer using two decimal places. Acidic or [H+] [OH-] pH pOH basic? 7.4x10-3 ΑΣφ 3.3x10-10 M pH 8.25 5.73 Is to fa ho II 10 insertThe dots in the graph below show the absolute errors of replicate results obtained by four analysts. -2.0 -1.5 O Analyst 1 Analyst 3 Analyst 4 (3 - XĐ). O Analyst 2 } (X) -1.0 (1-XĐ) (2-x)) -0.5 0 Absolute error (x; -x₂), %N Analyst 1 Benzyl isothiourea hydrochloride Analyst 2 Benzyl isothiourea hydrochloride Analyst 3 Nicotinic acid Determine which 2 analysts have significantly fewer systematic errors as compared to the remaining 2 analysts. Analyst 4 Nicotinic acid 0.5 1.09- An aqueous solution at 25 C has a H,O concentration of 2. x 10 M. Calculate the OH concentration. Be sure your answer has 1 significant digits. || M x10 I Don't Know Submit O 2022 McGraw Hill LLC. All Rights Reserved. Tems of Use Privacy Center Accessibility 5:05 5/9/20 DELL F2 F3 F4 FS F6 F7 F8 F9 F10 F11 F12 PrtSc Insert Delete %23 & Num Lock Backspace 5 8 T CU D F K Enter く0
- Data and Observations Section Date volume of HCI solution used, mL concentration of NaOH solution, M initial volume of NaOH solution, mL determination 1 25 ml determination 2 25 mL 0.0500 M 0.0500 M 0mL Oml equivalence-point volume of NaOH solution, mL 30.5mL 2.3ml Calculations and Conclusions Show your calculations in the space provided. Include units on all quantities and round results to the correct number of significant figures. 1. Determine the volume of NaOH solution required to titrate the HCI solution to the equivalence point. determination 1 determination 2 2. Calculate the original concentration of the HCI solution (M). determination 1 determination 2 3. Calculate the average concentration of the HCI solution (M). average HCl concentration, MIf an instrument gives a response of 1240 for a standard containing 8 ppm of a substance, how much if this substance is in a sample that gives a response of 1705? Are any assumptions needed?Part D Determine the volume of 0.150 M NaOH solution required to neutralize 130 mL of a 0.115 M HCl solution. The neutralization reaction is Express your answer in liters to three significant figures. VE ΑΣΦ Submit NaOH(aq) + HCl(aq) → H₂O(1) + NaCl(aq) Provide Feedback Request Answer P Pearson ? L ucation Inc. All rights reserved. | Terms of Use | Privacy Policy | Permissions | Contact Us | Next >