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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
Wiki User
∙ 15y ago
Wiki User
∙ 14y agoC = 12.01 amu
C2 = 24.02 amu
H = 1.008 amu
H2 = 2.016 amu
Total mass = 26.018 amu
24.02 / 26.018 x 100 = 92.32070...
Therefore mass percent of carbon in C2H2 = 92.32%
Wiki User
∙ 11y agoThe percentage of carbon in cyclohexene (C6H10) is 87,72 %.
Wiki User
∙ 10y ago40% C, 6,7% H and 35,5% O
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∙ 11y agoAdd your answer:
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Which of these gases is present in the greatest percentage in the composition of the sun?
Hydrogen Thank you
What is the precent composition of hydrogen in water?
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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
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What is composition of atmospheric air at sea level?
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How many moles of C2H6O in 10.0 grams?
For this you need the atomic (molecular) mass of C3H4. Take the number of grams and divide it by the atomic mass. Multiply by one mole for units to cancel. C3H4=40.0 grams10.0 grams C3H4 / 40.0 grams = .250 moles C3H4
