Question

In: Chemistry

Calculate M for trial 1 and 2 show calculation Weight of Fas: Trial 1-1.00g Trial 2-...

Calculate M for trial 1 and 2 show calculation

Weight of Fas: Trial 1-1.00g Trial 2- 1.00 g

Final reading of buret: 18.00 mL 18.00mL

Initial reading of buret: 50.00 mL 50.00mL

V to equivalence pt.: 26.00mL 26.00mL

Molarity of KMnO4: ? ?

Expert Solution

stoichiometric equation

2 KMnO4(aq) + 10(NH4)2Fe(SO4)2(aq) + 8H2SO4(aq) -------> 2MnSO4(aq) + 5Fe2(SO4)3(aq) + 10(NH4)2SO4(aq) + K2SO4(aq) + 8H2O

according stoichiometry 2 mole of KMnO4 react with 5 mole of FAS ( the ratio of KMnO4/FAS is 1:5)

Now,

Trial 1

Mazs of FAS = 1.00g

Molar mass of FAS = 392.13g/mol

No of mole of FAS = 1g/392.13g = 0.00255

So , No of mole of KMnO4 reacted = 0.00255/5=0.00051

Volume of FAS consumed = 26ml

Molarity of FAS = (0.00051/26ml)×1000ml = 0.0196M

Trial 2

Volume of FAS consumed

Molarity of FAS = 0.0196M

Note: As per Initial and final burette reading , volume of KMnO4 consumed is 32ml , if it is true Molarity of KMnO4 is 0.0159M for both trials

queen_honey_blossom answered 2 years ago

Show your calculation for the molar volume of CO2 from Trial 1-4 according to your experimental...

Show your calculation for the molar volume of CO2 from Trial 1-4 according to your experimental data. Show all work, value. What is the average volume of gas from all 4 trials? What is the percent error? Show your work Trial Pressure (atm) Temp (K) Reactant Mass (g) Water Displaced (L) 1) NaHCO3 1.01 293.45 1.0 0.0004 2) NaHCO3 1.01 293.45 1.0 0.0005 3) Na2CO3 1.01 293.45 1.0 0.0005 4) Na2CO3 1.01 293.45 1.0 0.0006

calculate the [H+] and the pH of each of the solutions. {Show calculation for a, c,...

calculate the [H+] and the pH of each of the solutions. {Show calculation for a, c, d, e, h, j, and k.} a) 0.358 M HNO3 pH = :[H+] = e) 0.358 M HF pH = :[H+] = i) 0.358 M HC6H5O pH = :[H+] = b) 55.5 M H2O pH = :[H+] = f) 0.358 M HNO2 pH = :[H+] = j) 0.358 M Ba(OH)2 pH = :[H+] = c) 0.358 M NaOH pH = :[H+] = g) 0.358 M CH3NH2 pH =...

** No need to answer (1) or (2), Please show explanation for (3), with specific calculation...

** No need to answer (1) or (2), Please show explanation for (3), with specific calculation process if needed. Thank you. ** Dudley has a utility function U(C, R) = CR, where R is leisure and C is consumption per day. He has 16 hours per day to divide between work and leisure. Dudley has a non-labor income of $48 per day. (a) If Dudley is paid a wage of $6 per hour, how many hours of leisure will he...

Temperature: 96.8 oC Concentration of HCl solution: 0.04998 M Trial 1 Trial 2 Trial 3...

Temperature: 96.8 oC Concentration of HCl solution: 0.04998 M Trial 1 Trial 2 Trial 3 Initial volume of HCl (mL) 0.00 0.00 0.00 Final volume of HCl (mL) 3.15 3.84 3.37 Volume of HCl used (mL) *Moles of Ca(OH)2 (mol) Volume of Ca(OH)2 titrated (mL) 10.00 10.00 10.00 *Molar solubility of Ca(OH)2 (M) *[Ca2+] (M) *[OH-] (M) *Ksp *Experimental average Ksp I have to find the answers to those with * next to them and unsure how to do...

Show that 2Px orbital is given by 2??=1√2(2?1+2?−1) Show details. 2p1 means m =1 and 2p-1...

Show that 2Px orbital is given by 2??=1√2(2?1+2?−1) Show details. 2p1 means m =1 and 2p-1 means m =-1.

WACC and NPV calculation SHOW ALL WORK !!!! Calculate the Components of WACC and the WACC...

WACC and NPV calculation SHOW ALL WORK !!!! Calculate the Components of WACC and the WACC Use 4 decimals. Cost of Debt:30 year Bonds Current Price 105.5% of par value 7.6 % Coupon Rate Semi Annual Bond 5 years to maturity Tax Rate: 40%. What is the Cost of Debt after tax? Preferred Stock Dividend $7.50 Current Price $60.00. What is the Cost of Preferred? Equity Risk Free Rate 6.50% Market Risk Premium 6.25% Stock Beta 0.7 What is the...

1. Calculate the Correlation between height and weight, using centimeters and kilograms 2. Calculate the Correlation...

1. Calculate the Correlation between height and weight, using centimeters and kilograms 2. Calculate the Correlation between height and weight, using inches and pounds 3. Compare these correlations. What would you conclude? 4. Create a Scatter plot graph of these data. Graph: Select Pounds in the X axis and Inches in the Y Insert a scatter graph Click on the first graph Click on Drawing Tools and then layout: Select Axis Titles: write the titles Do the same thing for...

Show the calculation steps for each of the problems below. Using Nyquist’ theorem, calculate the channel...

Show the calculation steps for each of the problems below. Using Nyquist’ theorem, calculate the channel capacity C of a signal that has 18 different levels and a frequency of 50,000 Hz. Using Shannon’s theorem, calculate the data transfer rate given the following information, signal frequency= 25,000 Hz; signal power = 5000 watts; noise power = 320 watts. Using Nyquist’s theorem and given a frequency of 8000 Hz and a data rate of 90,000 bps, how many signal levels (L)...

1. Calculate the pH of a 0.339 M H2S. Calculate the [S2-] in the solution. 2....

1. Calculate the pH of a 0.339 M H2S. Calculate the [S2-] in the solution. 2. A titration is performed by adding 0.656 M KOH to 40 mL of 0.172 M HNO3: b) Calculate the pH after the addition of 2.1, 5.25 and 9.49 mL of the base.(Show your work in detail for one of the volumes.) e)Calculate the pH after adding 5.00 mL of KOH past the equivalence point

solve for q in 4000 + 10q^2-q^3 show calculation.