Question

I have a chemistry question that I'm not sure quite how to do. I'm pretty sure I'm overthinking it a lot.
Calculate the mass of urea, CO(NH₂)₂, which contains 15.0g of nitrogen atoms.
Thank you!

Answer 1

Answer:

32.13g

Explanation:

in urea, the mass of nitroden atoms is 28g. here the given samole of urea contains only 15 gram. so the mass of nitrogen reduced by 1.867times.(28/15=1.867).so the total mass must be reduced by 1.867times.the molecular mass of urea is 60g. so the mass of urea in the given sample is 60/1.867=32.13 g

HOPE THIS IS HELPFUL....