Respuesta :
Answer: The mass of ammonia will be 7.34 g
Explanation:
To calculate the number of moles, we use the equation given by ideal gas equation:
[tex]PV=nRT[/tex]
Or,
[tex]PV=\frac{m}{M}RT[/tex]
where,
P = pressure of the gas = 100 kPa
V = Volume of gas = 9.8 L
m = Given mass of ammonia = ? g
M = Molar mass of ammonia = 17 g/mol
R = Gas constant = [tex]8.31\text{L kPa }mol^{-1}K^{-1}[/tex]
T = temperature of the gas = 273 K
Putting values in above equation, we get:
[tex]100kPa\times 9.8L=\frac{m}{17g/mol}\times 8.31\text{L kPa }mol^{-1}K^{-1}\times 273K\\\\m=7.34g[/tex]
Hence, the mass of ammonia will be 7.34 g
