Answer: The mass percent of nitrogen in the sample is 8.2 % Explanation: Kjeldahl method is defined as the analytical method which is used in the determination of nitrogen content in any organic compound.. The relative atomic masses are: H 1; N 14. We would need the following equalities to set up conversion factors: 1 mol N2 = 28.014 g … The excess HCl was then back-titrated with 9.95 mL of 0.03512 M NaOH. What percentage by mass of nitrogen is in aluminum nitrate? Calculate the ratio by number of atoms of elements in an ammonia molecule. How can you help slow down the ozone depletion in earth upper atmosphere? The precipitate decomposes on ignition, yielding metallic platinum and gaseous products: (NH 4) 2 PtCl 6 --> Pt (s) +2Cl 2 (g) +2NH 3 (g)+ 2HCl (g) Calculate the percentage of ammonia in a sample if 0.2115 g gave rise to 0.4693 g of platinum. For single nutrient fertilizer products such as anhydrous ammonia (82-0-0) or 28% UAN (28-0-0), calculating the costs per pound of nutrient is simple. Thus at a pressure of 113.6 atmospheres and a space-velocity of 28.5, the percentage of ammonia is 6.42 and the S.T.Y. 0.4693 (1/ (14+1+1+1))= 0.0276 Answer to: A chemist creates 20.4 grams of ammonia in the reaction of 5.50 g hydrogen and excess nitrogen. Convert the moles of ammonia to grams of ammonia. The percentage of nitrogen found in the orginal sample can now be calculated by: %nitrogen = (gms nitrogen / gms sample) x 100 %N = (gN / gS) x 100 Chemistry. 1 Answer why is Net cash provided from investing activities is preferred to net cash used? - Answers What word has 8 letters with the 4th letter is v? If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. Why don't libraries smell like bookstores? The ratio by mass of Nitrogen with Hydrogen in ammonia is 14:3. Cloudflare Ray ID: 60a777f38fadfdf1 Another sample of the same compound contains 150 g of hydrogen Calculate the amount of nitrogen in the second sample of ammonia Express your answer with the appropriate units. Ammonia is produced by the chemical reaction of nitrogen and N 2(g) + 3H 2 (g) à 2NH 3 (g) a.Calculate the number of moles of Hydrogen, H2, needed to react with 6.80 moles of Nitrogen, N2. Given the following equation: NH3 +O2 ¨ NO + H2O Calculate the number of grams of ammonia needed to form 40.12 moles of nitrogen monoxide. • Calculate the percentage of by mass of nitrogen in ammonium nitrate Nh4 No3 . Calculate the percentage by mass of nitrogen in an ammonia molecule (NH​​​​​​​3). If the sample temperature and sample pH are known, the below table can be used to determine what percentage of total ammonia is in the ammonia (NH 3) form. Ammonia contains about 82.35 % nitrogen by mass. how is ammonia converted into a fertilizer? 6.07 moles of ammonia • (17.03 g / 1 mole of ammonia) = 103.396 g of ammonia. | EduRev Class 9 Question is disucussed on EduRev Study Group by 126 Class 9 Students. How long do you have to live if your larynx is broke? In these experiments about 50 per cent, of the total possible percentage of ammonia was formed by a contact of one to two seconds. Example 1: Single Nutrient … What are some samples of opening remarks for a Christmas party? Is 1.3, which is considerably higher than the comparable second S.T.Y. The molar mass of #"N"# is #"14.007 g/mol"#. Copyright © 2020 Multiply Media, LLC. ok so is this how its to look 4(NH3) + 5(O2) - … It can also be used as a measure of the health of water in natural bodies such as rivers or lakes, or in man made water reservoirs. 2 NH 2 ( g ) + CO 2 ( g ) → NH 2 CONH 2 ( a q ) + H 2 O ( l ) What volume of ammonia at 25°C and 3.00 atm is needed to produce 908 g (2 lb) of urea? Chemistry The Mole Concept Percent Composition. Please enable Cookies and reload the page. See the answer CP = %N x 6.25. percent Nitrogen. Dec 19,2020 - The percentage of nitrogen in ammonia is given by the expression :-a)14 x 100/17b)(3/17 x 100)c)4x 100/34d)3/34 x 100Correct answer is option 'A'. Asked by Topperlearning User | 30th Mar, 2016, 10:04: AM Calculate the mass of nitrogen in the sample in grams. Calculate the percentage yield of ammonia produced in the reactor. Although there are differences between different samples, the amount of "crude protein" (CP) can be found by multipling the percent Nitrogen by a factor (usually 6.25). In Kjeldahl's estimation of nitrogen, the ammonia evolved from 0.5g of an organic compound neutralised 10ml of IM H.SO, Calculate the percentage of nitrogen in the compound in the table. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply. Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. We can used dimensional analysis and equation coefficients to convert 1000. grams of nitrogen to moles of nitrogen, to moles of ammonia, to grams of ammonia. This problem has been solved! When did organ music become associated with baseball? Take the relative atomic masses of hydrogen and nitrogen to be 1 and 14 respectively. 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