Question

12. Calculate the number of moles present in 224 litres of Ammonia at STP​

Answer 1

Answer:

10 moles

Explanation:

No. of moles = given volume (in ltr). [using PV=nRT]

-------------------

22.4 ltr

= 224

------

22.4

= 10 moles

Answer 2

Answer:

10 moles of ammonia gas.

Explanation:

According to ideal gas law-

PV=nRT

where,

1. P- pressure
2. V- volume
3. n- number of moles
4. R- ideal gas constant
5. T- temperature (K)

We are given-

1. Volume- 224 liters
2. Pressure- 1 atm (STP)
3. Temperature- 273 K (STP)

To find the number of moles, we substitute the values in ideal gas equation.

$1 * 224 = n* 0.082*273$

$224 = 22.4n$

$n = 10$

Conclusion:

There are 10 moles of ammonia gas present in 224 liters.