Answer: 1. ![NH_3=82.4\%](https://tex.z-dn.net/?f=NH_3%3D82.4%5C%25)
2. ![CO(NH_2)_2=46.7\%](https://tex.z-dn.net/?f=CO%28NH_2%29_2%3D46.7%5C%25)
3. .
4.
has highest nitrogen content.
Explanation:
To calculate the mass percent of element in a given compound, we use the formula:
1.
![\text{Mass percent of nitrogen}=\frac{\text{Mass of nitrogen}}{\text{Mass of} NH_3}=\frac{14}{17}\times 100=82.4\%](https://tex.z-dn.net/?f=%5Ctext%7BMass%20percent%20of%20nitrogen%7D%3D%5Cfrac%7B%5Ctext%7BMass%20of%20nitrogen%7D%7D%7B%5Ctext%7BMass%20of%7D%20NH_3%7D%3D%5Cfrac%7B14%7D%7B17%7D%5Ctimes%20100%3D82.4%5C%25)
2.
![\text{Mass percent of nitrogen}=\frac{\text{Mass of nitrogen}}{\text{Mass of} CO(NH_2)_2}=\frac{14\times 2}{12\times 1+16\times 1+2\times 14+4\times 1}\times 100=\frac{28}{60}\times 100=46.7\%](https://tex.z-dn.net/?f=%5Ctext%7BMass%20percent%20of%20nitrogen%7D%3D%5Cfrac%7B%5Ctext%7BMass%20of%20nitrogen%7D%7D%7B%5Ctext%7BMass%20of%7D%20CO%28NH_2%29_2%7D%3D%5Cfrac%7B14%5Ctimes%202%7D%7B12%5Ctimes%201%2B16%5Ctimes%201%2B2%5Ctimes%2014%2B4%5Ctimes%201%7D%5Ctimes%20100%3D%5Cfrac%7B28%7D%7B60%7D%5Ctimes%20100%3D46.7%5C%25)
3.
![\text{Mass percent of nitrogen}=\frac{\text{Mass of nitrogen}}{\text{Mass of} NH_4NO_3}=\frac{14\times 2}{14\times 2+16\times 3+4\times 1}\times 100=\frac{28}{80}\times 100=35\%](https://tex.z-dn.net/?f=%5Ctext%7BMass%20percent%20of%20nitrogen%7D%3D%5Cfrac%7B%5Ctext%7BMass%20of%20nitrogen%7D%7D%7B%5Ctext%7BMass%20of%7D%20NH_4NO_3%7D%3D%5Cfrac%7B14%5Ctimes%202%7D%7B14%5Ctimes%202%2B16%5Ctimes%203%2B4%5Ctimes%201%7D%5Ctimes%20100%3D%5Cfrac%7B28%7D%7B80%7D%5Ctimes%20100%3D35%5C%25%20)
4.
![\text{Mass percent of nitrogen}=\frac{\text{Mass of nitrogen}}{\text{Mass of}(NH_4)_2SO_4}=\frac{14\times 2}{14\times 2+16\times 4+32\times 1+8\times 1}\times 100=\frac{28}{132}\times 100=21.2\%](https://tex.z-dn.net/?f=%5Ctext%7BMass%20percent%20of%20nitrogen%7D%3D%5Cfrac%7B%5Ctext%7BMass%20of%20nitrogen%7D%7D%7B%5Ctext%7BMass%20of%7D%28NH_4%29_2SO_4%7D%3D%5Cfrac%7B14%5Ctimes%202%7D%7B14%5Ctimes%202%2B16%5Ctimes%204%2B32%5Ctimes%201%2B8%5Ctimes%201%7D%5Ctimes%20100%3D%5Cfrac%7B28%7D%7B132%7D%5Ctimes%20100%3D21.2%5C%25)
Thus
has highest nitrogen content of 82.4%.
When oxygen and hydrogen combine they form a polar covalent bond
Answer:
Some human activities that cause damage (either directly or indirectly) to the environment on a global scale include population growth, overconsumption, overexploitation, pollution, and deforestation, to name but a few.
Explanation:
Hope this helped!!!
The percentage yield obtained from the given reaction above is 74.8%
<h3>Balanced equation </h3>
P₄ + 6Cl₂ → 4PCl₃
Molar mass of P₄ = 31 × 4 = 124 g/mol
Mass of P₄ from the balanced equation = 1 × 124 = 124 g
Molar mass of PCl₃ = 31 + (35.5×3) = 137.5 g/mol
Mass of PCl₃ from the balanced equation = 4 × 137.5 = 550 g
<h3>SUMMARY</h3>
From the balanced equation above,
124 g of P₄ reacted to produce 550 g of PCl₃
<h3>How to determine the theoretical yield </h3>
From the balanced equation above,
124 g of P₄ reacted to produce 550 g of PCl₃
Therefore,
79.12 g of P₄ will react to produce = (79.12 × 550) / 124 = 350.9 g of PCl₃
<h3>How to determine the percentage yield </h3>
- Actual yield of PCl₃ = 262.6 g
- Theoretical yield of PCl₃ = 350.9 g
Percentage yield = (Actual /Theoretical) × 100
Percentage yield = (262.6 / 350.9) × 100
Percentage yield = 74.8%
Learn more about stoichiometry:
brainly.com/question/14735801
Answer:
A stalagmite is a type of rock formation that rises from the floor of a cave due to the accumulation of material deposited on the floor from ceiling drippings. Stalagmites are typically composed of calcium carbonate, but may consist of lava, mud, peat, pitch, sand, sinter and amberat.
and a stalactite means mineral formation that hangs from the ceiling of caves, hot springs, or man-made structures such as bridges and mines. Any material that is soluble and that can be deposited as a colloid, or is in suspension, or is capable of being melted, may form a stalactite.