Ammonia burns in oxygen and the combustion- in the presence of a catalyst- may be represented by- 2NH3 -2 1-2 O2 - 2NO -3H2O -H - 1- N - 14- O - 16- What mass of steam is produced when 1-5 g of nitrogen monoxide is formed-

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard X

Chemistry

Mole Concept and Avogadro's Number

Ammonia burns...

Question

Ammonia burns in oxygen and the combustion, in the presence of a catalyst, may be represented by:
$2 N H_{3} + 2 \frac{1}{2} O_{2} \to 2 N O + 3 H_{2} O [H = 1 : N = 14 : O = 16.]$

What mass of steam is produced when 1.5 g of nitrogen monoxide is formed?

Open in App

Solution

Step 1: Balanced equation: $2 N H_{3} + 2 \frac{1}{2} O_{2} \to 2 N O + 3 H_{2} O$

Step 2: Find the moles of $N O$ by divide the mass by it's molar mass.

$M o l e s o f N O = \frac{1.5 g N O}{30 \frac{g}{m o l} o f N O} = 0.05 m o l e s o f N O$

Step 3: Find the moles of $H_{2} O$ by using the moles ratio from balanced equation

$M o l e s o f H_{2} O = 0.05 m o l e s N O \times \frac{3 m o l e s H_{2} O}{2 m o l e s o f N O} = 0.075 m o l e s o f H_{2} O$

Step 4: Find the mass of $H_{2} O$ by multiply the molar mass

$M a s s o f H_{2} O = 0.075 m o l e s H_{2} O \times \frac{18 g H_{2} O}{1 m o l o f H_{2} O} = 1.35 g r a m s o f H_{2} O$

Suggest Corrections

Similar questions

(c) Ammonia burns in oxygen and the combustion, in the presence of a catalyst, may be represented by
$2 {NH}_{3} + 2 \frac{1}{2} O_{2} \overset{}{\to} 2 NO + 3 H_{2} O$
(i) What mass of steam is produced when 1.5 g of nitrogen monoxide is formed?
(ii) What volume of oxygen, at STP, is required to form 10 moles of product?
[H = 1; N = 14; O = 16. 1 mole of gas occupies 22.4 dm³ (22.4 litre) at STP]

Water can be split into hydrogen and oxygen under suitable conditions. The equation representing the change is:
2H₂O (l) $\overset{}{\to}$ 2H₂ (g) + O₂ (g)
(i) If a given experiment results in 2500 cm³ of hydrogen being produced, what volume of oxygen is liberated at the same time under the same conditions of temperature and pressure?
(ii) Ammonia burns in oxygen and the combustion in the presence of a catalyst may be represented as
2NH₃ (g) + $2 \frac{1}{2}$ O₂ (g) $\overset{}{\to}$ 2NO (g) + 3H₂O (l)
What mass of steam is produced when 1.5 g of nitrogen monoxide is formed?

(a) Concentrated nitric acid oxidises phosphorus to phosphoric acid according to the following equation:
P + 5HNO₃ $\overset{}{\to}$ H₃PO₄ + H₂O + 5NO₂
(i) What mass of phosphoric acid can be prepared from 6.2 g of phosphorus?
(ii) What mass of nitric acid will be consumed at the same time?
(iii) What will be the volume of steam at the same time measured at 760 mm Hg pressure and 373°C? (H = 1; N = 14; O = 16; P = 31)

(b) Ammonia may be oxidised to nitrogen monoxide in the presence of a catalyst according to the following equation:
4NH₃ + 5O₂ $\overset{}{\to}$ 4NO + 6H₂O
If 27 litres of reactants are consumed, what volume of nitrogen monoxide is produced at the same temperature and pressure?