A 0.8835-g sample of a wheat flour was analyzed by the Kjeldahl procedure. The ammonia formed was
Question:
A 0.8835-g sample of a wheat flour was analyzed by the Kjeldahl procedure. The ammonia formed was distilled into 50.00 mL of 0.05078 M HCl; a 8.04-mL back-titration with 0.04829 M NaOH was required. Calculate the percentage of protein in the flour.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 60% (10 reviews)
In kjeldahl method liberated NH 3 is titrated with acid HCl equation is NH 3 HCl NH 4 Cl mole ratio ...View the full answer
Answered By
Keziah gitau
My self Amruta hajare and from Maharashtra, I have done my graduation in Bachelor of Pharmacy as well as Diploma in pharmacy.
I have earned 83.38% in Bachelor of pharmacy.
I have experience of 5 months in Covid Care Centre as a pharmacist
0.00
0 Reviews
10+ Question Solved
Related Book For
Fundamentals Of Analytical Chemistry
ISBN: 9780357450390
10th Edition
Authors: Douglas A. Skoog, Donald M. West, F. James Holler, Stanley R. Crouch
Question Posted:
Students also viewed these Sciences questions
-
A 0.917-g sample of canned tuna was analyzed by the Kjeldahl method. A volume of 20.59 mL of 0.1249 M HCl was required to titrate the liberated ammonia. Calculate the percentage of nitrogen in the...
-
A 0.7121 g sample of a wheat flour was analyzed by the Kjeldahl method. The ammonia formed was distilled into 25.0 mL of 0.04977 M HCI. The excess HCI was then back-titrated with 3.97 mL of 0.04012 M...
-
Calculate the volume in mL of a 1.420 M NaOH solution required to titrate the following solutions: (a) 25.00 mL of a 2.430 M HCl solution (b) 25.00 mL of a 4.500 M H2 SO4 solution (c) 25.00 mL of a...
-
Determine the magnitude of the projection of the moment cause by the force about the a a axis. OKAY, SO I DONT UNDERSTAND HOW TO GET "R" BECAUSE THE FORCE IS MEASURED ON AN AXIS AND NOT A POINT OR...
-
The percentages of college freshmen whose average grade in high school was an A are shown in Table 10 for various years. Let p be the percentage of college freshmen whose average grade in high school...
-
What is ISO 9001, and why is it important for global businesses to have ISO 9001 certification?
-
7. Suppose that V is open in Rn , f: V -+ R is C2 on V, and fxJa) = for some a E V and all j = 1, ... , n. Prove that if H is a compact convex subset of V, then there is a constant M such that for...
-
A project monitoring technique called a traffic approach (i.e., red, yellow, and green lights) is mentioned in the chapter. Comment on what you see as the pros and cons of this approach.
-
Hahn Flooring Company uses a perpetual inventory system. a. The inventory account has a balance of $652,200, while physical inventory indicates that $643,950 of merchandise is on hand. Assume any...
-
A major automobile company is interested in reducing the time that customers have to wait while having their car serviced with one of the dealers. They select four customers randomly each day and...
-
A 1.421-g sample of commercial KOH contaminated by K 2 CO 3 was dissolved in water, and the resulting solution was diluted to 500.0 mL. A 50.00-mL aliquot of this solution was treated with 40.00 mL...
-
The Merck Index indicates that 10 mg of guanidine, CH 5 N 3 , may be administered for each kilogram of body mass in the treatment of myasthenia gravis. The nitrogen in a 4-tablet sample that had a...
-
What messages does this send to the replica sports kit industry and to major sponsors like Adidas, Nike etc.?
-
What is the essential objective that scientists should pursue by striving to remove personal biases, a priori commitments, and emotional involvement from their investigations about the world?...
-
c) Critically review the use of ROA (Return on Assets) as an indicator for your purposes of how a company's resources are used to generate wealth, and how different companies might measure it in...
-
Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified line. Sketch the region, the solid and a typical disk or washer. -2x 3. y = ex, y = 0, x =...
-
2. Given the list of scores: Score1 = [ 10, 40, 50, 54, 55, 59, 63, 65, 70, 71, 75, 77, 79, 80, 99] The one-sample T-test is used to test whether the mean of Score1 is statistically different from...
-
Find the area of the triangle having the given measurements. Round to the nearest square unit. 13) C=100, a 3 yards, b = 8 yards Use Heron's formula to find the area of the triangle. Round to the...
-
Choose one of the ads featured in this book and explain whether it uses a rational appeal or an emotional appeal.
-
4. Jobe dy -Y 2 et by
-
Using any reagents you like, show a way to convert 1-methylcyclopentene into 3-methylcyclopentene.
-
Determine the electron configuration for each of the following atoms: a. Carbon b. Oxygen c. Boron d. Fluorine e. Sodium f. Aluminum
-
In each case, identify the more stable anion. Explain why it is more stable. (a) (b) (c) vs. N. vs. -zo
-
nformation pertaining to Noskey Corporation s sales revenue follows: November 2 0 2 1 ( Actual ) December 2 0 2 1 ( Budgeted ) January 2 0 2 2 ( Budgeted ) Cash sales $ 1 0 5 , 0 0 0 $ 1 1 5 , 0 0 0...
-
The management team of Netflix maintains a stable dividend using the Lintner model: Dt+1 = Dt + EPS Target Payout Where Dt (Dt+1) = dividend in the current period t (the next period t + 1) EPSt =...
-
#1 #2 hapter 50 10 D Werences lav Help Required information [The following information applies to the questions displayed below) Archer Company is a wholesaler of custom-built air-conditioning units...
Study smarter with the SolutionInn App