Question

A lawn fertilizer is rated as 6.50% nitrogen, meaning 6.50 g of N in 100 g of fertilizer. The nitrogen is present in the form of urea, (NH2)2CO. How many grams of urea are present in 100 g of the fertilizer to supply the rated amount of nitrogen?

Answer 1

Convert 6.50 g N to g urea.
6.50 g N x (molar mass urea/2*atomic mass N) = ? g urea.

Answer 2

Thank you so much!