Standardization Answer the concentrations in 3 significant figure. The tolerance or error should follow the decimal place of the value. You can use scientific notation using "e". Example: 0.0010 = 1.0e-3 Primary Standard: Na2CO3 Formula Mass of 1º Standard: 105.99 g/mol Purity of 1º Standard: 95% Instrument used: Analytical Balance Trial 1⁰ Standard weight, g Net vol. of HCI, mL M HCI of Hydrochloric Acid Solution Average M HCI 1 0.0504 + 0.0002 ± 2 0.0510 (same as 1) 18.00 ± 0.14 18.30 ± 0.14 17.90 +0.14 ± 3 1+ 0.0501 (same as 1) ±

Standardization Answer the concentrations in 3 significant figure. The tolerance or error should follow the decimal place of the value. You can use scientific notation using "e". Example: 0.0010 = 1.0e-3 Primary Standard: Na2CO3 Formula Mass of 1º Standard: 105.99 g/mol Purity of 1º Standard: 95% Instrument used: Analytical Balance Trial 1⁰ Standard weight, g Net vol. of HCI, mL M HCI of Hydrochloric Acid Solution Average M HCI 1 0.0504 + 0.0002 ± 2 0.0510 (same as 1) 18.00 ± 0.14 18.30 ± 0.14 17.90 +0.14 ± 3 1+ 0.0501 (same as 1) ±

Appl Of Ms Excel In Analytical Chemistry

2nd Edition

ISBN:9781285686691

Author:Crouch

Publisher:Crouch

Chapter4: Least-squares And Calibration Methods

Section: Chapter Questions

Problem 1P

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aur X Macmilla X 2/ Course X 50 ~ T Sections X Submit Answer evo/index.html?deploymentid=5735112480241329813180832311&elSBN=9781305862883&id=1707786042&snapshot! References lancing Molecular Equations: This is group attempt 2 of 10 HOMEW X Use the References to access Important values if needed for this question. When the following molecular equation is balanced using the smallest possible Integer coefficients, the values of these coefficients are: Na (s) + H₂0 (1). NaOH (aq) + H₂ (8) ≡く □ □ A MindTap ㅁ Autosaved at 5:51 PM MacBook Air Gatoms to When the following molecular equation is balanced using the smallest possible Integer coefficients, the values of these coeffi Br₂(g) + Cl₂(g) →BrCl(g) X Dom
II. STANDARDIZATION OF NAOH SOLUTION Table 3.4. Standardization of NaOH solution. Trial 1 Conditions Trial 2 Primary standard Weight of flask, g Weight of flask + KHP, g Weight of KHP,g NaOH solution Final volume reading, mL Initial volume reading, mL 123.4568 122.4567 123.7072 122.7208 25.50 32.40 0.00 5.50 Volume used, mL Normality of NaOH solution
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.
$ F4 An aqueous solution of 2.87 M hydrochloric acid, HCl, has a density of 1.05 g/mL. The percent by mass of HCl in the solution is %. Submit Answer % 5 T G F5 Retry Entire Group 9 more group attempts remaining 6 Cengage Learning | Cengage Technical Support Y H [Review Topics] [References] Use the References to access important values if needed for this question. MacBook Air F6 & 7 gilinent-take F7 8 00 1 DII FB K ( 9 F9 0 L ) O A F10 P Chapter Previous + 11 X Next ☐ Save and Exit OWLY S deles
A chemist measured the concentration of a solution three times and obtained the following results (in mol/L): 0.0147, 0.0146, 0.0148. Do the results appear precise, accurate, or neither? Explain. avenge =.0147 (pdimus.co 120 Doy Jine What information would you need for the results to be both precise and accurate? If the true value is 0.0149, calculate the percent error.
150 140 130 120 110 100 NaNO3 90 80 70 60 NH&C KCI Naci 50 40 30 20 KCIO3. 10 Cez(SOA)3 0 10 20 30 40 50 60 70 80 90 100 Temperature ('C) EONX NH37 Grams of solute
Hi! I am having difficulty finishing and finding out the rest of tables in excel. I am trying to find the Calcium Carbonate in an Eggshell. I have put up the excel sheet I have done with the given data already inputed, I just need to find out the rest. Thank you so much!
if you diluted the amount of ferric nitrate to 20.0m of 6.0X10-4 M then you would need to weigh 4.8 mg. how much error (in%) will occur if you weighed out 0.0125 g in an analytical balance
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.
You have run analysis on an unknown acetaminophen sample. Your results showed the concentration of acetaminophen in the unknown was 35.9%. The actual concentration of acetaminophen in the unknown was 49.0%. What is the error % for this analysis? Answer to 1 decimal place.
Given the following data, what is the molarity? Include the relative error Error is 1.0 mg or 1.0e-4
Anna Divi, a young and ambitious researcher, is planning to put her very own research laboratory. However, she does not have the funds for this to happen. She then approached Alan Read, CEO of a well-known funding agency, to help her pursue her dream laboratory. Before Alan considers Anna's proposal, Anna must perform an experiment on determining the melting point of solutions. She must have an accurate result with a percent error not greater than 3%. The data on the experiment is given below. Help Anna achieve her goals by performing the necessary calculations below. Table 1. Data on the determination of the melting point of the solution. Parameters Values Theoretical freezing point of solvent, °C 65.8 Freezing point depression constant (kç) of solvent, °C m-1 2.49 mass of solute, g 0.250 mass of solvent, g 2.100 molar mass of solute, g mol-1 148.21 A. Calculate the molality of the solution. B. Calculate the theoretical freezing point of the solution. C. Anna performed the same…