Question

Calculate the mass of nitrogen supplied to soil by 5 kg of urea

Answer 1

Hi.

Here is your answer------

Mass of Urea Given = 5 kg.
                                = 5000 grams.

Chemical formula of the urea {carbamide} is NH2CONH2

Molecular Mass of the Urea = 60 grams.

The mass of Nitrogen present in 60 grams of the Urea = 28 grams.

Since, 60 grams of the urea contains 28 grams of the Nitrogen.

Thus, 1 grams--------------------------------------------28/60 grams of the N2

Therefore,
5000 grams -------------------------------------(28/60) x 5000 grams of N2
                                                               = 140000/60 grams of N2
                                                               = 2333.33 grams of N2

Hope it helps.

Have a nice day.

Answer 2

Answer:

Explanation:

pls refer to attachment