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Nitrogen is a key element in amino acids, the building blocks of proteins. Proteins are made up of chains of amino acids, with each amino acid containing nitrogen in addition to carbon, hydrogen, and oxygen. As a result, a certain percentage of nitrogen is present in proteins, with the average around 16 percent based on the composition of amino acids.
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What would describe the state of nitrogen balance of a person who ingested 16 g of food nitrogen and lost 19 g of nitrogen?
The person is in negative nitrogen balance because they lost more nitrogen (19 g) than they ingested (16 g). Negative nitrogen balance indicates that the body is breaking down more protein than it is synthesizing, which can be seen in conditions like starvation or illness.
What is the mass percent of nitrogen in ammonia carbonate (NH4)2CO3?
To calculate the mass percent of nitrogen in ammonium carbonate ((NH4)2CO3), first find the molar mass of the compound: (2 x 14) + 12 + 3 x 16 = 96 g/mol. The molar mass of nitrogen in the compound is 14 g/mol. The mass percent of nitrogen in (NH4)2CO3 is (2 x 14) / 96 x 100 = 29.2%.
What is the difference between nitrogen-14 and nitrogen-16?
The main difference between nitrogen-14 and nitrogen-16 is their atomic mass. Nitrogen-14 has 7 protons and 7 neutrons in its nucleus, while nitrogen-16 has 7 protons and 9 neutrons. This results in nitrogen-16 being slightly heavier than nitrogen-14.
Where would you find 79 percent nitrogen 16 percent oxygen 4.5 percent carbon dioxide?
Those percentages closely match the composition of Earth's atmosphere at sea level. The atmosphere is made up of mostly nitrogen (around 78%) and oxygen (around 21%), with trace amounts of other gases like carbon dioxide (around 0.04%).
The mass percent nitrogen in nitrous acid HNO2 is?
Since we need the mass percent, we need to know the molar mass of the entire compound: H - 1g/mol N- 14 g/mol O -32 g/mol (16 g/mol x 2) which equals 47 g/mol. now, put the weight of the unknown, N, over the entire weight. 14/47 = 29.8 g/mol
How many grams of nitrogen are in a gram of protein?
protein is 16% nitrogen so the answer would be 0.16g of nitrogen per gram of protein
How many grams of nitrogen are contained in 2500 kcal diet that provides 15 percent of the energy as protein?
To calculate the amount of nitrogen in a diet, you typically assume that 16% of protein is nitrogen. In this case, if 15% of the energy in the diet comes from protein, you can calculate the total protein in the diet (2500 kcal * 0.15 = 375 kcal from protein). Then, convert this to grams of protein using the fact that protein provides 4 kcal/g. Finally, since protein is about 16% nitrogen, you can calculate the total grams of nitrogen in the diet.
What is the percentage of nitrogen in most proteins?
Nearly all of the nitrogen in a diet is present as amino acids in proteins. The average nitrogen content of proteins was found to be around 16 percent.
What would describe the state of nitrogen balance of a person who ingested 16 g of food nitrogen and lost 19 g of nitrogen?
The person is in negative nitrogen balance because they lost more nitrogen (19 g) than they ingested (16 g). Negative nitrogen balance indicates that the body is breaking down more protein than it is synthesizing, which can be seen in conditions like starvation or illness.
Sesame seeds in the food pyramid?
Sesame seeds fall under three places in the food pyramid. They are 16 percent carbs, 73 percent fats, and 11 percent protein.
How is the Kjeldahl method used to determine the amount of protein in a food?
The Kjeldahl method determines protein content by measuring the nitrogen content in a food sample. The sample is digested with sulfuric acid, converting organic nitrogen into ammonium sulfate. After neutralization with a strong base, the ammonia released is distilled and quantified, typically using titration. The nitrogen content is then converted to protein content using a conversion factor, usually 6.25, assuming that proteins contain approximately 16% nitrogen.
What are the benefits of going on a low protein diet?
A low protein diet is most beneficial for people with liver and kidney disease. Since protein is composed of 16% nitrogen it can be harmful to excrete the increased amount of urea in people with liver and kidney disease.
What is the mass percent of nitrogen in ammonia carbonate (NH4)2CO3?
To calculate the mass percent of nitrogen in ammonium carbonate ((NH4)2CO3), first find the molar mass of the compound: (2 x 14) + 12 + 3 x 16 = 96 g/mol. The molar mass of nitrogen in the compound is 14 g/mol. The mass percent of nitrogen in (NH4)2CO3 is (2 x 14) / 96 x 100 = 29.2%.
What biomolecules contain nitrogen?
Nucleic Acids
What is the difference between nitrogen-14 and nitrogen-16?
The main difference between nitrogen-14 and nitrogen-16 is their atomic mass. Nitrogen-14 has 7 protons and 7 neutrons in its nucleus, while nitrogen-16 has 7 protons and 9 neutrons. This results in nitrogen-16 being slightly heavier than nitrogen-14.
Karl Iver consumed 9 grams of protein during lunch What percent of his US RDA of 56 grams of protein for a 16 year old did he consume for lunch?
16.07% (9/56)
What is 16 0 0 fertilizer?
A 16-0-0 fertilizer is a type of nitrogen fertilizer that contains 16% nitrogen and no phosphorus or potassium. The primary nutrient, nitrogen, promotes healthy leaf and stem growth, making it ideal for leafy vegetables, grass, and other plants that require high nitrogen levels. Because it lacks phosphorus and potassium, it is often used in specific situations where those nutrients are already present in sufficient amounts in the soil.
