What is the mass percentage of carbon in urea [CO(NH2)2]? (Molar mass of urea is 60g)
32%
21%
2%
20%
Urea [CO(NH2)2] is an important nitrogenous fertilizer and is sold in 50 kg sacks. What is the mass of nitrogen in one sack of urea?
What is the mass of nitrogen in 1000 kg of urea [CO(NH2)2]? (H = 1; C = 12; N = 14; O = 16)