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Ethylene- C2H4
Find the atomic masses for each element and multiply it by the number of atoms in the compound, then add.
C- 12.0 * 2= 24.0
H- 1.00 * 4= 4.00
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28.0
Take the masses for each element and divide it by the total mass. Then change the answer to get the percent.
C 24.0 / 28.0= .857 = 85.7%
H 4.00 / 28.0= .143 = 14.3%
Ethylene is 85.7% Carbon and 14.3% Hydrogen
What else can I help you with?
What is the percentage composition of ammonia NH3?
Ammonia (NH3) has a percentage composition of 82.35% nitrogen and 17.65% hydrogen.
How many carbon atoms are present in C3H4?
There are 3 Carbon atoms in C3H4. The numbers following the Element names (Like C, or H, or Na) is the amount of atoms in the compound. So there are 3 Carbon atoms and 4 Hydrogen atoms. That is incorrect the answer would be 4.53 x 1023 carbon molecules
What is the precent composition of hydrogen in water?
The formula of water is H2O. The gram atomic mass of hydrogen is 1.008 and the gram atomic mass of oxygen is 15.999. Therefore, the mass percent composition of hydrogen in water is 100{(2)(1.008)/[(2)(1.008) + 15.999] or 11.19 %.The percent composition of hydrogen in water is: 11,19 %.
What is the percentage of hydrogen in air?
The percentage of hydrogen on earth is just 0.25%
Which metal has the highest percentage composition on earth?
Iron has the highest percentage composition on Earth's crust, making up about 5.6% by weight.
What is the alkyne that has 90 percent carbon to hydrogen?
It is Propyne , C3H4
What gases is present in the greatest percentage in the composition of the sun?
Hydrogen
What is the percentage composition of ammonia NH3?
Ammonia (NH3) has a percentage composition of 82.35% nitrogen and 17.65% hydrogen.
Which of these gases is present in the greatest percentage in the composition of the sun?
Hydrogen Thank you
Which of these gases is presnet in the greatest percentage in the composition of the sun?
Hydrogen & helium
What is the percentage of composition ofC2H6O?
The chemical composition of ethanol is:- carbon: 52,12 %- oxygen: 34,74 %- hydrogen: 13,13 %
What is percentage composition of H3PO4?
The percentage composition of the phosphoric acid is: H: 3,0857 % O: 65,307 % P: 31,6074 %
What is the percentage composition of amonium sulfate?
The percentage composition of amonium sulfate is:- Nitrogen: 21,21 %- Hydrogen: 6,06 %- Sulfur: 24,24 %- Oxygen: 48,48 %
What is the percentage composition of ethanol?
Ethanol is composed of about 52.14% oxygen, 13.16% hydrogen, and 34.70% carbon by mass.
What would be the formula for an alkyne with 3 carbon atoms?
The formula for an alkyne with 3 carbon atoms is C3H4. It consists of three carbon atoms and four hydrogen atoms, with a triple bond between the first and second carbon atoms.
How many carbon atoms are present in C3H4?
There are 3 Carbon atoms in C3H4. The numbers following the Element names (Like C, or H, or Na) is the amount of atoms in the compound. So there are 3 Carbon atoms and 4 Hydrogen atoms. That is incorrect the answer would be 4.53 x 1023 carbon molecules
What is the precent composition of hydrogen in water?
The formula of water is H2O. The gram atomic mass of hydrogen is 1.008 and the gram atomic mass of oxygen is 15.999. Therefore, the mass percent composition of hydrogen in water is 100{(2)(1.008)/[(2)(1.008) + 15.999] or 11.19 %.The percent composition of hydrogen in water is: 11,19 %.
