Homework Answers
Based on your given information and data :
Average Moles of Components per gram of compound :
- H2O : 0.00593 mol/g
- Oxalate (C2O42-) : 0.006465 mol/g
- Fen+ : 0.004308 mol/g
mass of Components per gram of compound :
- H2O : 0.00593 mol/g * 18 g/mol * 1g = 0.1067 g
- Oxalate (C2O42-) : 0.006465 mol/g * 88 g/mol * 1g = 0.5689 g
- Fen+ : 0.004309 mol/g * 55.85 g/mol * 1g = 0.2406 g
Since total mass = 1g
thus , K+ mass per 1 gram of compound : 0.0838 g
thus, Moles of Components per gram of compound : 0.0838 g /1g / 39 g/mol = 0.002149 mol /g
All moles divided by the lowest number of moles :
- H2O : 0.00593 mol/g ==> 2.76
- Oxalate (C2O42-) : 0.006465 mol/g ==> 3.00
- Fen+ : 0.004308 mol/g ===> 2.00
- K+ : 1.00
Whole number ratio :
- H2O : 3
- Oxalate (C2O42-) : 3.00
- Fen+ : 2.00
- K+ : 1.00
Using mole ratio numbers , Chemical formula:
K [Fe2(C2O4)3].3H2O
There seems to be error in in your calculation for Fe , chemical formula of this compound shall be : K3[Fe(C2O4)3].3H2O
Add Answer to:
clo0 Molor Mass of water 18gmol 0.90849 009 146 - 0:00516 mole 0.0958g - 0.0053amole 188...
i need help answering the table by tonight for my test!! thank you!! Trial 1 Prelaboratory...
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...
Name Prelab for Exp. 6: Analysis of Trisoxalatoferrate(III) for Oxalate Content From the balanced equation for...
Name Prelab for Exp. 6: Analysis of Trisoxalatoferrate(III) for Oxalate Content From the balanced equation for the reaction between C20, and MnO, show that it is the manganese that is reduced and the carbon that is oxidized by giving the initial and final oxidation numbers of these elements in the reaction. Oxidation numbers Mn C Demonstrate your method for finding oxidation numbers of Mn and C in C,02and MnO," here: Reactants Products Consider the mole ratio of permanganate to oxalate...
find the remaining parts of each table for each trial. include work please :) Redox Standardization of a Potassium...
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...
EELT Ă Aa A E ADA AaBbCcDde AaBbCcDde AaBbci AaBbcc AaBbci AaBbCcDe 1 Normal 1 No...
EELT Ă Aa A E ADA AaBbCcDde AaBbCcDde AaBbci AaBbcc AaBbci AaBbCcDe 1 Normal 1 No Spac... Heading 1 Heading 2 Title Subtitle Paragraph Styles Part 1 Data and calculations: Determining the concentration of NaOH solution Trial 1 Trial 2 Trial 3 Trial 4 mass of acid (KHP) (6) 0.6206 0.6178 0.6137 0.6095 Final buret reading (ml) 21.07 41.27 20.54 40.72 Initial buret reading (mL) 0.33 21.07 0.38 / 20.54 Vol. NaOH used (ml) Molarity of NaOH (mol/L) b. Show...
1. what is the mole ratio for trial 1 and 2? 2. whats the average mole...
1. what is the mole ratio for trial 1 and 2?
2. whats the average mole ratio for trial 1 and
2?
3. whats the average deviation for trial 1 and 2?
* please include the steps if you dont mind*
ng down the equation ahd an example calculation, The example calculation only needs to be done for one trial. The results of the remaining trials can be written down in a table in your notebook. (Part 1)) Determine the...
BACKGROUND: Synthesis of Potassium Iron (III) Oxalate Hydrate Salt The iron(II) ions from Fe(NH4)2(SO4)2•6H2O will be precipitated as iron(II) oxalate. Fe^2+(aq) + C2O4^2-(aq) --> FeC2O4 (s) The su...
BACKGROUND: Synthesis of Potassium Iron
(III) Oxalate Hydrate Salt
The iron(II) ions from
Fe(NH4)2(SO4)2•6H2O
will be precipitated as iron(II) oxalate.
Fe^2+(aq) + C2O4^2-(aq) --> FeC2O4 (s)
The supernatant liquid, containing the ammonium and sulfate
ions, as well as excess oxalate ions and oxalic acid will be
decanted and discarded. The solid will then be re-dissolved and the
iron(II) ions will be oxidized to iron(III) ions by reaction with
hydrogen peroxide.
2Fe^2+(aq) + H2O2(aq) --> 2Fe^3+(aq) +2 OH^ - (aq)
The...
can some fill out this table for me with work? able 4: Standardization of KMnO, solution...
can
some fill out this table for me with work?
able 4: Standardization of KMnO, solution Weight of H-C-04-2H,0 (8) Molarity of H.C_042H,O Solution (M) Volume of H.C204 2H2O used per titration (ML) Moles of Oxalate (mole) 5 Moles of KMnO4 (mole) 2 T1.GO 0.05m 120ml Initial buret reading (mL) Final buret reading (mL) Volume of KMnO4 (mL) Molarity of KMnO4 Solution (M) Average Molarity of KMnO Solution (M) Run #1 Run #2 Run # 3 Olli 10.18 Toda 223.28...
From Part A: Mass of KxFe(C2O4)y · zH2O prepared : 4.359 g Mass of FeCl3 : 1.60 g From Part B: % ...
From Part A: Mass of KxFe(C2O4)y · zH2O prepared : 4.359 g Mass of FeCl3 : 1.60 g From Part B: % Potassium in compound : 22.70 % % Iron (from ion exchange & titration vs. NaOH) : 10.60 % From Part C: % Oxlate : 55.69 % Now, let's finish the calculation and the determination of the formula of the iron compound: Calculate the % water of hydration : Tries 0/3 Calculate the following for Fe3+: g in 100...
In this experiment you will use an oxidation - reduction titration to determine the percent of...
In this experiment you will use an oxidation - reduction titration to determine the percent of oxalate ion, CO2 in an unknown sample containing oxalate ion. Potassium permanganate (KMnO.) will be titrated against the oxalic acid (C2H:08) as shown by the following oxidation-reduction reaction: +3 +7 5C,044 2MnO4 + 16H* → 10CO, 8H0 + 2Mn2 +4 + + Mno. Mn? is the reduction process C2042 → CO2 is the oxidation process The underlying principle behind a titration is that an...
From Part A: Mass of KxFe(C2O4)y · zH2O prepared : 4.200 g Mass of FeCl3 :...
From Part A: Mass of KxFe(C2O4)y · zH2O prepared : 4.200 g Mass of FeCl3 : 1.60 g From Part B: % Potassium in compound : 22.00 % % Iron (from ion exchange & titration vs. NaOH) : 9.10 % From Part C: % Oxlate : 36.96 % - Calculate the % water of hydration : Calculate the following for Fe3+: g in 100 g sample mol in 100 g sample mol/mol Fe (3 sig figs) mol/mol Fe (whole number)...
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...
Name Prelab for Exp. 6: Analysis of Trisoxalatoferrate(III) for Oxalate Content From the balanced equation for the reaction between C20, and MnO, show that it is the manganese that is reduced and the carbon that is oxidized by giving the initial and final oxidation numbers of these elements in the reaction. Oxidation numbers Mn C Demonstrate your method for finding oxidation numbers of Mn and C in C,02and MnO," here: Reactants Products Consider the mole ratio of permanganate to oxalate...
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...
EELT Ă Aa A E ADA AaBbCcDde AaBbCcDde AaBbci AaBbcc AaBbci AaBbCcDe 1 Normal 1 No Spac... Heading 1 Heading 2 Title Subtitle Paragraph Styles Part 1 Data and calculations: Determining the concentration of NaOH solution Trial 1 Trial 2 Trial 3 Trial 4 mass of acid (KHP) (6) 0.6206 0.6178 0.6137 0.6095 Final buret reading (ml) 21.07 41.27 20.54 40.72 Initial buret reading (mL) 0.33 21.07 0.38 / 20.54 Vol. NaOH used (ml) Molarity of NaOH (mol/L) b. Show...
1. what is the mole ratio for trial 1 and 2?
2. whats the average mole ratio for trial 1 and
2?
3. whats the average deviation for trial 1 and 2?
* please include the steps if you dont mind*
ng down the equation ahd an example calculation, The example calculation only needs to be done for one trial. The results of the remaining trials can be written down in a table in your notebook. (Part 1)) Determine the...
BACKGROUND: Synthesis of Potassium Iron
(III) Oxalate Hydrate Salt
The iron(II) ions from
Fe(NH4)2(SO4)2•6H2O
will be precipitated as iron(II) oxalate.
Fe^2+(aq) + C2O4^2-(aq) --> FeC2O4 (s)
The supernatant liquid, containing the ammonium and sulfate
ions, as well as excess oxalate ions and oxalic acid will be
decanted and discarded. The solid will then be re-dissolved and the
iron(II) ions will be oxidized to iron(III) ions by reaction with
hydrogen peroxide.
2Fe^2+(aq) + H2O2(aq) --> 2Fe^3+(aq) +2 OH^ - (aq)
The...
can
some fill out this table for me with work?
able 4: Standardization of KMnO, solution Weight of H-C-04-2H,0 (8) Molarity of H.C_042H,O Solution (M) Volume of H.C204 2H2O used per titration (ML) Moles of Oxalate (mole) 5 Moles of KMnO4 (mole) 2 T1.GO 0.05m 120ml Initial buret reading (mL) Final buret reading (mL) Volume of KMnO4 (mL) Molarity of KMnO4 Solution (M) Average Molarity of KMnO Solution (M) Run #1 Run #2 Run # 3 Olli 10.18 Toda 223.28...
In this experiment you will use an oxidation - reduction titration to determine the percent of oxalate ion, CO2 in an unknown sample containing oxalate ion. Potassium permanganate (KMnO.) will be titrated against the oxalic acid (C2H:08) as shown by the following oxidation-reduction reaction: +3 +7 5C,044 2MnO4 + 16H* → 10CO, 8H0 + 2Mn2 +4 + + Mno. Mn? is the reduction process C2042 → CO2 is the oxidation process The underlying principle behind a titration is that an...
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