Standardization of Hydrochloric Acid Solution 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 10 Standard: 105.99 g/mol Purity of 1° Standard: 95% Instrument used: Analytical Balance Trial 1 2 3 0.0504 ± 0.0510 (same 0.0501 (same as 1) as 1) 1° Standard weight, g 0.0002 Net vol. of 18.00 ± 0.14 18.30 ± 0.14 17.90 ± 0.14 HCI, mL M HCI Average M HCI

Standardization of Hydrochloric Acid Solution 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 10 Standard: 105.99 g/mol Purity of 1° Standard: 95% Instrument used: Analytical Balance Trial 1 2 3 0.0504 ± 0.0510 (same 0.0501 (same as 1) as 1) 1° Standard weight, g 0.0002 Net vol. of 18.00 ± 0.14 18.30 ± 0.14 17.90 ± 0.14 HCI, mL M HCI Average M HCI

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter11: Solutions

Section: Chapter Questions

Problem 10P

See similar textbooks

Similar questions

Titration of Vinegar Experimental Data Trial 1 Trial 2 Initial Buret Reading 0.05 mL 0.02 mL Final Buret Reading 25.25 mL 23.22 mL Volume of base used Molarity of base used 0.1045 M 0.1045 M Volume of vinegar used 5.00 mL 5.00 mL
$ 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 30 mL sample of vinegar is titrated with 39 mL of 0.5 N Sodium Hydroxide. What is the normality of the acetic acid (CH3COOH) in vinegar? Atomic Weights :Sodium - 22.99Oxygen - 15.999Hydrogen - 1.008 Enter numerical value only; round off to 4 decimal places if necessary
Constants I Peric 1.00 g KCl in 95.0 mL of solution Express your answer with the appropriate units. µA M = Value Units Submit Request Answer Part B 1.00 g Na2CrO4 in 95.0 mL of solution Express your answer with the appropriate units. HẢ M = Value Units C.
To what volume (in mL) should 0.67 mL of an 5.21 M acetic acid solution be diluted in order to obtain a final solution that is 1.77 M? Calculate to 2 decimal places Read about significant figures and rounding in the Helpful Resources page! Do not include units when reporting your answer Use standard notation or scientific notation as accepted by blackboard e.g. 0.001 or 1E-3, not 1 x 10^-3
A solution of HCl was titrated against sodium carbonate. What is the normality of acid for Trial 3 in the given data? T1 T2 0.3562 0.3479 0.3042 Weight (g) Initial V (mL) 0.80 1.60 0.40 Final V (mL) 35.20 36.70 39.80 Vol HCI used (ml) 35.10 39.40 N of HC (eq/L) 0.1954 0.1870 Average N of HCl (eq/L)
2 ml 1 ml 1 ml 1 ml 1 ml STOCK solution colored- dye bottle 1 mg/ml A B C D E Volume of water 4ml 4ml 4ml 4ml Dilution ratio Dilution factor Final Concentration 1) What type of Serial dilution is this one ( ?? :?? dilution)?
An aqueous solution is made of the diprotic acid H₂A to a concentration of 0.11 M H₂A. Kat-3.0 x 104 and K₁2=2.5 x 10-9 What is the [A2] in this solution? Your answer should have 2 significant figures and be expressed in scientific notation (i.e. 3.0 x 102 as 3.0e2)
What is the molarity of an aqueous solution that contains 0.0720 g C2H6O2 per gram of solution . The density of the solution is 1.04 g/mL X STARTING AMOUNT ADD FACTOR ANSWER RESET *( ) 1.04 62.08 6.022 x 1023 0.0720 1.21 x 10-3 4650 1.12 1000 1.21 1 0.001 g C2H.O2 mol C2H6O2 g C2H&Oz/mol g solution/mL mL solution g C2H6O2/g solution M C2H6O2 L solution g solution
1a) 0.1% = ? ug/ml? Only include the number and not any units b) What is the concentration of your stock in ug/ml? Only include the number and not any units c`The molecular weight of tartrazine is 534.4 g/mole. What is the concentration of your stock solution in mM? Be sure to give your answer in milliMolar to TWO decimal places. d)What dilution of your stock do you need to get the first standard (100 ug/ml)? Express as 1:x, where x is the fold dilution needed.
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.
Complete the table by entering the molarity of B2- for each standard solution. Show an illustrative calculation for tube ‘A’. Use the dilution formula and express each result to one more digit than allowed by applying the rules of significant figures. Standard Volume of stock B2- solution taken, mL Molarity of dilute B2 Construct a graph of Absorbance vs. molarity of B2- in Excel using the data in the preceding table. Make certain to title the graph and include axes labels with proper units. Absorbance is dimensionless (has no unit). Add a linear trendline to the graph but do not set the y-intercept to zero Solid M2B is added to 25 mL of water, the resulting mixture is continually stirred for 1 hour. At this point, it is assumed that equilibrium (eqn 3) has been established. The mixture is transferred to a test tube, and the test tube is centrifuged to assure that any residual solid M2B is fully settled out. A portion of the supernatant in the test tube is carefully…