What is the percentage composition of C14H20N2SO4?

Answer 1

Here we go: C14H20N2SO4 has 14 carbons, 20 hydrogens, 2 nitrogens, 1 sulfur, and 4 oxygens. (That's penicillin, by the way.) The molar mass is the total mass of all the atoms, which works out to be 312g/mol. Now, just get part divided by total for each:

Carbon: 12x14=168, 168/312=0.54=54%

Hydrogen: 1x20=20, 20/312=0.06=6%

Nitrogen: 14x2=28, 28/312=0.09=9%

Sulfur: 32x1=32, 32/312=0.1=10%

Oxygen: 16x4=64, 64/312=0.21=21%

*(just make sure your percents all add up to 100!)

Answer 2

To find the percentage composition of each element, you need to calculate the molar mass of the compound (C14H20N2SO4) and then divide the molar mass of each element by the total molar mass of the compound and multiply by 100 to get the percentage composition. This process will give you the percentage composition of carbon, hydrogen, nitrogen, sulfur, and oxygen in the compound.