Acid/base titration of vinegar Imagine that you accidentally used 30 mL of water instead of ~20 mL to wash down your flaskin the procedure. You may assume that you documented this correctly (as 30 mL) innotebook. Will your final result (% mass of acetic acid in vinegar) be lower, the same, or higherthan if you had done the procedure correctly? Explain your answer.your

Acid-base titration of vinegar is done in laboratories to find out the concentration of acetic acid.…

Imagine that you accidentally used 30 mL of water instead of ~20 mL to wash down your flask in the procedure. You may assume that you documented this correctly (as 30 mL) in your notebook. Will your final result (% mass of acetic acid in vinegar) be lower, the same, or higher than if vou had done the procedure correctly? Explain vour answer.

Imagine that you accidentally used 30 mL of water instead of ~20 mL to wash down your flask in the procedure. You may assume that you documented this correctly (as 30 mL) in your notebook. Will your final result (% mass of acetic acid in vinegar) be lower, the same, or higher than if vou had done the procedure correctly? Explain vour answer.

Introductory Chemistry For Today

8th Edition

ISBN:9781285644561

Author:Seager

Publisher:Seager

Chapter7: Solutions And Colloids

Section: Chapter Questions

Problem 7.37E

See similar textbooks

Similar questions

Patients undergoing an upper gastrointestinal tract laboratory test are typically given an X-ray contrast agent that aids with the radiologic imaging of the anatomy. One such contrast agent is sodium diatrizoate, a nonvolatile water-soluble compound. A 0.378-m solution is prepared by dissolving 38.4 g sodium diatrizoate (NaDTZ) in.l.60 102 mL water at 3 1.2C (the density of water at 31.2C is 0.995 g/cm3). What is the molar mass of sodium diatrizoate? What is the vapor pressure of this solution if the vapor pressure of pure water at 31.2C is 34.1 torr?
30 20 10 From the procedure 2. Assemble the simple distillation apparatus as generally shown in Figure SD.1 in the lab manual, ensuring that the thermometer bulb is aligned at, or slightly below, the Y in the distillation head. Each ground joint is greased by putting three or four stripes of grease lengthwise around the male joint and pressing the joint firmly into the other without twisting. 3. Attach a water condenser to the distillation head. 4. Remember, water goes in the bottom and out the top. Attach a clamp holder to the end of the drain tube to keep it weighted in the drain. Turn water to a trickle. If it is slowly draining, it is high enough. Begin a low flow of water through the condenser. 5. Place the set up on a heating/stir plate. 6. Turn on the hot plate to start heating the solution. Monitor the temperature and the boiling of the solution throughout the distillation process. 7. Record the temperature of the distillate when the first drops are recovered. 30.0 8. Adjust…
PART B. Spectrophotometric Determination of the Copper Content of a Penny Mass of penny: 3.1848 Date on penny: 1964 Concentration of standard Cu2 solution: M Volume, Standard Volume, 1 M [Cu] (M) % Transmittance Absorbance Cu (mL) HNO, (mL) (use Eq. 4) 2. O.06 84.3% Test tube 1 0-074 O.IS 60.95% 0.215 Test tube 2 8. 3 0 244 45.3% 0.344 Test tube 3 300M 33.65% Standard O.473 Unknown 52.822 0-277
Part IV. Preparation of 100 mL 25% Solution X Materials: Solution X, measuring cylinder, distilled water, and parafilm. Show calculation steps. (1) Calculate the volume of Solution X required. (2) Calculate the volume of distilled water required_ (3) Deliver the calculated amount of distilled water in the measuring cylinder. (4) Add the calculated amount of Solution X to the measuring cylinder. (5) Seal the opening of the measuring cylinder with parafilm. Mix well. (6) Transfer the prepared 25% Solution X into a labelled container.
What is solute? What is solvent? What is solution? Give an example of each. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIYS Paragraph Arial 14px EA !!
A reagent bottle contains 250 cm3 of 0,4 mol.dm–3 oxalic acid(C2O4H2) solution. Calculate the mass of pure oxalic acid thatmust be dissolved in this solution so that its new concentration is 0,6 mol.dm–3. Assume that the volume of the solution remainsconstant
Density of solution:Trial 1: 1.2 g/mLTrial 2: 1.2 g/mLTrial 3: 1.2 g/mL Average density = 1.2 g/mL What is the relative average deviaion, %?
2. Use the formula listed below to calculate how much of each ingredient should be used to make 20,000 ml of Chigger Dope that is used to treat chigger insect bites. Add your solution below the table. Original Conversion New Orange Syrup Formula Factor Formula Benzocaine 400g Methyl Salicylate 160mL Salicylic acid 40g Isopropyl Alcohol NF, 99% 5840mL Pure water qs ad 8000mL Solution:
port youl answers WILH igures. Pay attention to the units in the first column. Table 1 (Report) Tablet identity (brand) Tums Titration Tablet 1 Mass of tablet/sample (g) 1,3 11 9 Volume of HCl solution (mL) 10 ml Concentration of HCl solution (M) ).3M Amount HCI (mmol) Concentration of NaOH solution (M) 0.1M 30.3 ml. 48.7ml: Initial burette reading (mL) Final burette reading (mL) Volume of NaOH solution (mL) Amount NaOH (mmol) Amount CaCO3 (mmol)* Molar mass of CaCO3 (mg mmol-') Mass of CaCO3 in tablet/sample (mg) % mass CaCO3 in tablet (%) 500 Manufacturer's specification (mg) Cost of one bottle of tablets (S) Number of tablets per bottle
3. To 20,00 ml of 0,1250 mol/l solution of silver nitrate – 25,00 ml of 0,1000 mol/l solution of potassium thiocyanate were added. Calculate pAg of this mixture. pKs(AgSCN) = 11,97 Express numerical result with an accuracy of: Х,ХX
1. A solution is known to contain 38.04 ± 0.03 mM KCl, and you have taken an aliquot of this solution using a pipette calibrated to deliver 20.013 ±0.006 mL. Determine the number of moles of KCl that are delivered in the aliquot, including the absolute uncertainly in that value. 2. You deliver the aliquot taken in problem 1 into a volumetric flask with a volume of 250.00 mL ± 0.02 % and dilute the solution to volume in the flask using Dl water. What is the concentration of KCl in this flask, report your answer with the absolute uncertainty. 3. Tabulated below are replicate titration volumes for an analysis. What is the error (both absolute and percent) for the average titration volume?
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.