Data Table 1: Reaction Data Sample Moles of vinegar (mol) Moles of baking soda (mol) Small, bigger Relative size of bag Was excess vinegar present? Color with indicator? Reacts with additional baking soda? Moles of gas produced (mol) Watch the limiting reagent! #1 0.042 #2 yes yellow 0.042 0.014 чем Smat Small 0.028 #3 0.042 0.042 #4 0.042 0.071 #5 big yes yes Yellow yellow Geen 0.042 0.88 more bigger bigger NO No Blue Calculations 1. Use Table 1 to determine which reactant was limiting in each trial. Use the amount of limiting reactant to calculate the moles of carbon dioxide gas that were produced. These values should be reported in the Moles of Gas Produced row in the table.

Data Table 1: Reaction Data Sample Moles of vinegar (mol) Moles of baking soda (mol) Small, bigger Relative size of bag Was excess vinegar present? Color with indicator? Reacts with additional baking soda? Moles of gas produced (mol) Watch the limiting reagent! #1 0.042 #2 yes yellow 0.042 0.014 чем Smat Small 0.028 #3 0.042 0.042 #4 0.042 0.071 #5 big yes yes Yellow yellow Geen 0.042 0.88 more bigger bigger NO No Blue Calculations 1. Use Table 1 to determine which reactant was limiting in each trial. Use the amount of limiting reactant to calculate the moles of carbon dioxide gas that were produced. These values should be reported in the Moles of Gas Produced row in the table.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter20: Applications Of Oxidation/reduction Titrations

Section: Chapter Questions

Problem 20.6QAP

See similar textbooks

Similar questions

1.Determine the color of the indicator in a given condition: METHYL ORANGE IN AN ACIDIC ENVIRONMENT. 2.This is the measure of reproducibility of data within a series of results. 3.This is the chemical to be subjected to testing in titrimetric method of analysis. 4.Determine the type of assay employed for this substance: TARTARIC ACID 5.Determine the color of the indicator in a given condition: PHENOLPHTHALEIN IN AN ALKALINE ENVIRONMENT. Please help me answer this questions. the answers are on the image I attached
Complete the following: 1. Random error, also called _________arises from the effects of uncontrolled variables in the measurement. 2. The ____________,measures how closely the data are clustered about mean. 3. The chemical equilibrium in which all the reactants and products are in the same phase are called____________. 4. Reaction that go to completion and never proceed in the reverse direction are said to be_____________ 5. The equation for buffer is the__________equation. 6. A ___________solution is one that resists changes in pH when small quantities of an acid or an alkali added to it. 7. __________is the pH of the pure, neutral and polyprotic
Consider Table 1, which lists the volumes of the Fe3+ and SCN- solutions used for the continuous variation method. Note that each of the stock solutions is 0.002 M before mixing. What are the initial concentrations of Fe3+ and SCN- for solution 4, where the volumes are both 5 mL? [Initial meaning after they are mixed, but before]they reach equilibrium)
Calculate the Qsp or Ksp, as indicated, and determine whether a precipitate will form when each of the following mixtures is prepared. (You may assume temperature is held constant, volumes are additive, and that the initial solutions, prior to mixing, are unsaturated.) (a) 25.15 mL 1.51 ✕ 10−4 M CaCl2 is mixed with 25.31 mL 3.20 ✕ 10−3 M NaF. (Ksp for CaF2 = 3.5 ✕ 10−11) Qsp A precipitate will form. A precipitate will not form. (b) 14.86 mL 3.50 ✕ 10−3 M Pb(NO3)2 is mixed with 34.80 mL 1.78 ✕ 10−4 M Na2SO4. (Ksp for PbSO4 = 2.5 ✕ 10−8) Qsp A precipitate will form. A precipitate will not form.
In order to prepare for a qualitative analysis experiment, Felix is predicting whether small samples of several pairs of 0.10 M control solutions will form a precipitate when mixed. He uses the table of solubility values provided as well as the general solubility guidelines in the chempendix. Solubilities of Alkaline Earth Salts (g/100 g H2O, at 20−25∘C) OH− CO2−3 SO2−4 CrO2−4 C2O2−4 Mg2+ 0.00069 0.18 35.7 54.8 0.038Ca2+ 0.16 0.00066 0.205 13.2 0.00061Sr2+ 2.25 0.00034 0.135 0.106 0.005Ba2+ 4.91 0.0014 0.00031 0.00026 0.0075For each pair of compounds, predict the formula for the precipitate that Felix will see when he mixes the solutions in lab. If no precipitate forms, enter NP for no precipitate.
A sample solution contains two unknown ions. A student did a series of tests on the solution, in the order listed below. If a precipitate formed at any stage, the mixture was filtered and further tests were done on the filtrate. The results are as follows. First test:Second test:Third test:Fourth test: solution is a pink colourNaIO3(aq) added and no precipitate formsflame colour is redNa2CO3(aq) is added and no precipitate forms Two possible ions that the solution contains are a.lithium and manganese(II) b. strontium and cobalt(II) c. strontium and manganese(II) d. lithium and cobalt(II)
Please find the product of bromothymol (blue indicator) + 2MgO and make it a balanced equation, thank you.
What do the ions that gave a precipitate when mixed with AgNO3 have in common? Hint given: Identify the ions and the Group of the Periodic Table to which they belong
A solution is 0.0400M in both CrO42- and SO42-. Slowly, Pb(NO3)2 is added to this solution. What is the concentration of CrO42- that remains in solution when PbSO4 first begins to precipitate?Ksp of PbCrO4 = 2.80×10-13; Ksp of PbSO4 = 1.60×10-8.Provide your answer in E-notation, rounded to 3 significant digits.
You have been given a vinegar solution that is made of water and an unknown concentration (M) of acetic acid. Acetic acid is a monoprotic acid which reacts with NaOH in a 1:1 mole ratio. You have access to a premade NaOH solution of unknown concentration (M), potassium hydrogen phthalate (KHP) and an phenolphthalein indicator as well. Using whatever necessary glassware that would be available to you in the general chemistry lab, design an experiment to determine the Molarity concentration (M), and appropriate statistics, of the acetic acid in the vinegar solution. Write the procedure, including specific glassware, measurements, and calculations in a bulleted or numbered list.
2KMnO4 (aq) +5H2C2O4 (aq) + 3H2SO4 (aq) > 10CO2 (g) + K2SO4 (aq) +2MnSO4 (aq) + 8H2O (l) 90ml of 0.0150 M KMnO4 solution is mixed with 30 ml of 0.095 M H2C2O4 solution in a medium where there is excess sulfuric acid. Assume 100% yield Calculate the concentration of the following ions or molecules in the final solution a) Mn2+ b) K+ c) MnO4- d)H2C2O4
Calculate the volume in liters of 0.545 M KOH necessary to titrate 0.0113 moles of hydrochloric acid, HCl, to a phenolphthalein end-point. Report the answer with three significant figures.