Ideal gases equation 4ESO

When we study reactions with gases at

condiciones which are noticias ideal, we must use the ideal gases equation:

PV=nRT

P=pressure in atm. 1atm=760mmHg

V=volume in L

n=n of moles, If we have mass n=m/Pm

R=0.082 atm•l/Kmol 

T=temperature in K (T°C+273.15)

Exercises:

1. Determine the volume of a)3 mol of gas at 1.5 atm and 30°C b)10 g of O2 at 500mmHg and 100°C c
2. Determine the number of moles of 5L of gas at 50°C and 1000mmHg. 
3. Determine the temperature of 56g of N2 at 380mmHg in a 20L recipient. b)2 mol of gas at 5atm in a 10L recipient
4. Determine the pressure of: 5 mol of gas at 25°C in 100L b) 1 g of H2 at 30°C in a 5L recipient.
5. A 5L bottle has H2 at 2.5 atm and 50°C. A spark makes it burn with air. How much air will we need at 30°C and 1atm How much water will we produce?

Data: Pm/ g/mol = H=1, O=16, N=14