Q 1)
Ans: The formula Ma.Va = Mb. Vb is use for the calculation of number of mole used in reaction.
While number of ions use in reaction can be bound by using Avagadros number.
The number of ions in 1 mole is given by the Avogadro Constant which is equal to 6.02x1023mol−1. We usually give this the symbol L.
So the solution in question contains L x M number of ions.
Q2)
Ans: The balance equation for the given reaction is 10FeSO4 + 2KMnO4 + 8H2SO4 = 5Fe2(SO4)3 + 2MnSO4 + K2SO4 + 8H2O
Fe+2 in the form of FeSO4 oxidise here to Fe+3 in the form of 5Fe2(SO4)3
Mn+6 in the form of KMnO4 Reduce in to Mn+2 in the form of MnSO4
Q3)
Ans: And given the balanced chemical equation, you need some means to signal the end point of a titration, when a stoichiometric equivalence of titrant has been added to the analyte. an acid base indicator, which has distinct colours in acidic/base is used to indicate the end of the reaction.
And given the balanced chemical equation, you need some means to signal the end point of a titration, when a stoichiometric equivalence of titrant has been added to the analyte.
Q4)
Ans: Mnemonics meangs
LEO: loss of electrons is oxidation
GER: gain of electron is reduction
OIL: Oxidation is loss of electron
RIG: Reduction is Gain of electron
Q6)
Ans:
Answer these post lab questions when given experimental data and procedures. A REDOX TITRATION POST-LAB QUESTIONS...
Redox CHM 111 Titration Name Date Lab Partner Data Sheet Molarity of KMnO: 1.234M Balanced chemical equation: Trial 1 Trial Trial Trial Trial Trial 1. Mass of H, O, solution _2419_ _2.899_ 1.989 _2.329 _2.569 1.999 2. Initial burette reading 0.00mL._ _27.4mL_ _25.23mL_ _0.00ml. 23.5ml 26.52mL 3. Final burette reading 27.4mL._ _49.6ml._ _48.58mL.__25.31mL.__41.25mL._ 42.89mL_ 4. Volume of KMnO, used 5. Moles of KMnO, 6. Moles of Ho 7. Grams of 1,0 8. Q-calculated value 9. Q-table value 10. Average grams...
find the remaining parts of each table for each trial. include work please :) Redox Standardization of a Potassium Permanganate Solution Trial 1 Trial 2 0.1003 13a l२.10 0 0136 13a O.81 Mass of Na2C2O4 (g) Molar Mass of Na2C2O4 (g/mol) Initial burette (mL) 2.70 11. 89 Final burette (mL) 13.48 Volume KMnO4 used (mL) 2- Moles C2O4 (mol) Moles KMNO4 (mol) Molarity KMnO4 (M) Average molarity KMnO (M) Determination of Iron (II) Percentage Trial 2 Trial 1 O- 30a8...
briefly discuss Redox discuss reaction performed discuss how moles of iron determined from titration discuss how (and report) grams of iron present and % iron in sample Discuss possible errors/improvements to experiment. Proper grammar and use of English. 0.5 Molarity of standard KMnO solution: Unknown number: 123 Initial burette reading Final burette reading Volume of MnO, used Moles of Mno, Moles of Fe?+ in sample Mass of iron in sample Mass of original sample % Fe in sample Sample 1...
i need help answering the table by tonight for my test!! thank you!! Trial 1 Prelaboratory Assignment 1. What is the primary standard used in this experiment? What is the molar mass of the primary standard? 2. Use the chemical formula for the primary standard to write the chemical reaction for the standardization of potassium permanganate. 3. What will indicate the endpoint of the titration? 4. A 0.495 g sample of iron containing salt required 20.22 mL of 0.0194 M...
Help please??! Molarity of KMnO4 is 0.0100 M Determination of oxalate in Kufe.(0,0...0). Name AB A LOCAL Partner's Name MA R ENDALL Total mass of product synthesized in previous experiment (6) 1720 g Molarity of KMnO. (Record from the label on the container) Trial 1 Trial 2 Trial 2 0.105 1. Mass of sample taken for titration (g) 0.11 2. Initial burette reading (ml) 0 Final burette reading (ml) 20 33.4 22.2 4. Volume of KMnO, used (ml) 2.2 5....
LAB 7: Titrations Continued --Titration of Household Products 51 III. Data Analysis Titration of Vinegar and Antacid Tablets Keep your notes for this experiment on this sheet. Turn this data sheet in along with a neatly written page with your calculations for your report. REPORT ALL VALUES TO AT LEAST THREE SIGNIFICANT FIGURES. READ YOUR BURETTE TO THE NEAREST 0.05 mL INCREMENT. PART A. Titration of Vinegar Mass of empty flaske Mass of flask and vinegar Mass of vinegar (g)...
71 LAB 8: Detemination of a Chemical Formula by Titration: Ca with H,O B. Titration of the Calcium-Water Product and Determination of the Chemical Formula of Calcium Hydroxide M C Precise concentration of 0.3 M HCI from T.A.. Trial 2 Trial 1 O.l689 Step 1 of Section II.B Mass of calcium (g) o.18029 Initial burette reading (mL) 0.0mL Step 2 of Section ILB D.OmL Final burette reading (mL) 22.1 mL 21.2mL Step 8 of Section I1.B 21.2mu 22.7 mL o.0028a...
What is the Balanced Chemical Equation? The FAS confuses me. please explain no 4 permanganate Experiment 30 Oxidation-Reduction Titration and Analysis of an Unknown Mixture PURPOSE OY BXPERIMENT: Standardizo a solution of Kno4, and determine the percent by mass of Na2C204 in an unknown mixture. The process of titration may be used for the standardization of solu- tions of oxidizing and/or reducing agents, provided a suitable method for observing the andpoint of the reaction is available. When potassium peran- ganata,...
I’m so confused on how to do any of this. Name Date General Chemistry I Lab CHE 1211 Data: Concentration of NaOH Trial Titration (to be used as practice) Initial burete eading4.0 ml Final burette reading 20.h m 22.om. Volume of NaOH used Repeat until 2 successful titrations are achieved. Titrations (to be used in calculations) K.Oml 0.bml 35.o mL 22.3 mL 38.5ml ↓ 30.6 mL45.0 mL 49.0 mL 35.5mL50.0 me 22.0mL H. m0 ml 1b.20 m 4.5ml Initial burette...
Chemistry 102 Lab Practical, Spring 2019 RedOx Titration of an Unknown Iron Compound This experiment is worth half of the final exam score for this semester. It contains a laboratory procedure that is similar to the ones we've been working with all semester Part of the score for this lab practical is based on the preparations you make for the lab in advance of the experiment. When you walk into lab on Thursday night, you should have written out the...