## Question

The percentage of nitrogen in urea is about

### Solution

**46 %**

NH_{2}CONH_{2} ≡ 2N

1 mol 2 g atoms

60 g 28 g

#### SIMILAR QUESTIONS

In the reaction, 4 NH_{3} (*g*) + 5 O_{2} (*g*) → 4 NO (*g*) + H_{2}O (*l*), when 1 mole of ammonia and 1 mole of O_{2} are made to react to completion

50mL 10 N H_{2}SO_{4}, 25mL 12 N HCl and 40 mL 5 N HNO_{3} were mixed together and the volume of the mixture was made 1000mL by adding water. The normality of the resultant solution will be :

The number of atoms in 4.25 g of NH_{3} is approximately

A 100mL solution of 0.1 N HCl was titrated with 0.2 N NaOH solution. The titration was discontinued after adding 30mL of NaOH solution. The remaining titration was completed by adding 0.25 N KOH solution. The volume of KOH required for completing the titration is

One mole of calcium phosphide on reaction with excess of water gives

Number of g of oxygen in 32.2 g Na_{2}SO_{4}. 10H_{2}O is

The percentage of Se in peroxidase anhydrous enzyme is 0.5% by weight (atomic weight = 78.4). Then minimum molecular weight of peroxidaseanhydrous enzyme is

How much of NaOH is required to neutralize 1500 cm^{3} of 0.1 N HCl? (Na = 23)

10 dm^{3} of N_{2} gas and 10 dm^{3} of gas X at the same temperature contain the same number of molecules. The gas X is

The volume of water to be added to 100 cm^{3} of 0.5 N H_{2}SO_{4} to get decinormal concentration is